An Innovative 3d Cfd Approach Towards Virtual Development Of Internal Combustion Engines

Download An Innovative 3d Cfd Approach Towards Virtual Development Of Internal Combustion Engines full books in PDF, epub, and Kindle. Read online An Innovative 3d Cfd Approach Towards Virtual Development Of Internal Combustion Engines ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!

An Innovative 3D-CFD-Approach towards Virtual Development of Internal Combustion Engines

Author : Marco Chiodi
Publisher : Springer Science & Business Media
ISBN 13 : 3834881317
Total Pages : 275 pages
Book Rating : 4.8/5 (348 download)

DOWNLOAD NOW!

Book Synopsis An Innovative 3D-CFD-Approach towards Virtual Development of Internal Combustion Engines by : Marco Chiodi

Download or read book An Innovative 3D-CFD-Approach towards Virtual Development of Internal Combustion Engines written by Marco Chiodi and published by Springer Science & Business Media. This book was released on 2011-03-07 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the engine development process, simulation and predictive programs have continuously gained in reliance. Due to the complexity of future internal combustion engines the application of simulation programs towards a reliable “virtual engine development” is a need that represents one of the greatest challenges. Marco Chiodi presents an innovative 3D-CFD-tool, exclusively dedicated and optimized for the simulation of internal combustion engines. Thanks to improved or newly developed 3D-CFD-models for the description of engine processes, this tool ensures an efficient and reliable calculation also by using coarse 3D-CFD-meshes. Based on this approach the CPU-time can be reduced up to a factor 100 in comparison to traditional 3D-CFD-simulations. In addition an integrated and automatic “evaluation tool” establishes a comprehensive analysis of the relevant engine parameters. Due to the capability of a reliable “virtual development” of full-engines, this fast response 3D-CFD-tool makes a major contribution to the engine development process. Südwestmetall-Förderpreis 2010

Analysis of Injection Processes in an Innovative 3D-CFD Tool for the Simulation of Internal Combustion Engines

Author : Marlene Wentsch
Publisher : Springer
ISBN 13 : 3658221674
Total Pages : 181 pages
Book Rating : 4.6/5 (582 download)

DOWNLOAD NOW!

Book Synopsis Analysis of Injection Processes in an Innovative 3D-CFD Tool for the Simulation of Internal Combustion Engines by : Marlene Wentsch

Download or read book Analysis of Injection Processes in an Innovative 3D-CFD Tool for the Simulation of Internal Combustion Engines written by Marlene Wentsch and published by Springer. This book was released on 2018-05-16 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to the large number of influencing parameters and interactions, the fuel injection and therewith fuel propagation and distribution are among the most complex processes in an internal combustion engine. For this reason, injection is usually the subject to highly detailed numerical modeling, which leads to unacceptably high computing times in the 3D-CFD simulation of a full engine domain. Marlene Wentsch presents a critical analysis, optimization and extension of injection modeling in an innovative, fast response 3D-CFD tool that is exclusively dedicated to the virtual development of internal combustion engines. About the Author Marlene Wentsch works as research associate in the field of 3D-CFD simulations of injection processes at the Institute of Internal Combustion Engines and Automotive Engineering (IVK), University of Stuttgart, Germany.

Modeling of Real Fuels and Knock Occurrence for an Effective 3D-CFD Virtual Engine Development

Author : Francesco Cupo
Publisher : Springer Nature
ISBN 13 : 3658316284
Total Pages : 119 pages
Book Rating : 4.6/5 (583 download)

DOWNLOAD NOW!

Book Synopsis Modeling of Real Fuels and Knock Occurrence for an Effective 3D-CFD Virtual Engine Development by : Francesco Cupo

Download or read book Modeling of Real Fuels and Knock Occurrence for an Effective 3D-CFD Virtual Engine Development written by Francesco Cupo and published by Springer Nature. This book was released on 2020-09-14 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: To drastically reduce the emission of greenhouse gases, the development of future internal combustion engines will be strictly linked to the development of CO2 neutral fuels (e.g. biofuels and e-fuels). This evolution implies an increase in development complexity, which needs the support of engine 3D-CFD simulations. Francesco Cupo presents approaches to accurately describe fuel characteristics and knock occurrence in SI engines, thus improving the current simulation capability in investigating alternative fuels and innovative combustion processes. The developed models are successfully used to investigate the influence of ethanol-based fuels and water injection strategies on knock occurrence and to conduct a virtual fuel design for and engine operating with the innovative SACI combustion strategy.

Investigation of Innovative Water Injection Strategies for Gasoline Engines by Means of a 3D-CFD Virtual Engine Test Bench

Author : Edoardo Rossi
Publisher : Springer Nature
ISBN 13 : 3658449411
Total Pages : 185 pages
Book Rating : 4.6/5 (584 download)

DOWNLOAD NOW!

Book Synopsis Investigation of Innovative Water Injection Strategies for Gasoline Engines by Means of a 3D-CFD Virtual Engine Test Bench by : Edoardo Rossi

Download or read book Investigation of Innovative Water Injection Strategies for Gasoline Engines by Means of a 3D-CFD Virtual Engine Test Bench written by Edoardo Rossi and published by Springer Nature. This book was released on 2024 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the investigation of innovative engine technologies that can improve the efficiency of internal combustion engines and reduce their environmental impact. In particular, water injection is examined as a means of improving engine behavior. The possible combination of water injection with renewable fuels is also a topic of the book. The results of this experimental and numerical research show positive results that can be used for further research and development of engines. Content 3D-CFD Simulation Environment: the Virtual Engine Test Bench Experimental Spray Analysis and 3D-CFD Injection Model Calibration Applicability of Water Injection in Combination with an eFuel Water-in-Fuel Emulsions at the Virtual Engine Test Bench Target Groups Students and researchers in the field of automotive engineering, esp. engine technology Engineers in the automotive industry About the Author Edoardo Rossi is a project manager in the virtual engine development department at the FKFS, where he did his PhD. He works on innovative solutions for future powertrain technologies for motor vehicles. .

Potential of Water Injection for Gasoline Engines by Means of a 3D-CFD Virtual Test Bench

Author : Antonino Vacca
Publisher : Springer Nature
ISBN 13 : 3658327553
Total Pages : 202 pages
Book Rating : 4.6/5 (583 download)

DOWNLOAD NOW!

Book Synopsis Potential of Water Injection for Gasoline Engines by Means of a 3D-CFD Virtual Test Bench by : Antonino Vacca

Download or read book Potential of Water Injection for Gasoline Engines by Means of a 3D-CFD Virtual Test Bench written by Antonino Vacca and published by Springer Nature. This book was released on 2020-12-15 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water injection is one of the most promising technologies to improve the engine combustion efficiency, by mitigating knock occurrences and controlling exhaust gas temperature before turbine. As result, the engine can operate at stoichiometric conditions over the whole engine map, even during the more power-demanding RDE cycles. Antonino Vacca presents a methodology to study and optimize the effect of water injection for gasoline engines by investigating different engine layouts and injection strategies through the set-up of a 3D-CFD virtual test bench. He investigates indirect and direct water injection strategies to increase the engine knock limit and to reduce exhaust gas temperature for several operating points.

International Conference on Ignition Systems for Gasoline Engines – International Conference on Knocking in Gasoline Engines

Author : Marc Sens
Publisher : expert verlag GmbH
ISBN 13 : 3816985440
Total Pages : 578 pages
Book Rating : 4.8/5 (169 download)

DOWNLOAD NOW!

Book Synopsis International Conference on Ignition Systems for Gasoline Engines – International Conference on Knocking in Gasoline Engines by : Marc Sens

Download or read book International Conference on Ignition Systems for Gasoline Engines – International Conference on Knocking in Gasoline Engines written by Marc Sens and published by expert verlag GmbH. This book was released on 2022-10-17 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: For decades, scientists and engineers have been working to increase the efficiency of internal combustion engines. For spark-ignition engines, two technical questions in particular are always in focus: 1. How can the air/fuel mixture be optimally ignited under all possible conditions? 2. How can undesirable but recurrent early and self-ignitions in the air/fuel mixture be avoided? Against the background of the considerable efficiency increases currently being sought in the context of developments and the introduction of new fuels, such as hydrogen, methanol, ammonia and other hydrogen derivatives as well as biofuels, these questions are more in the focus than ever. In order to provide a perfect exchange platform for the community of combustion process and system developers from research and development, IAV has organized this combined conference, chaired by Marc Sens. The proceedings presented here represent the collection of all the topics presented at the event and are thus intended to serve as an inspiration and pool of ideas for all interested parties.

Design of Racing and High-Performance Engines 2004-2013

Author : Douglas Fehan
Publisher : SAE International
ISBN 13 : 0768079837
Total Pages : 148 pages
Book Rating : 4.7/5 (68 download)

DOWNLOAD NOW!

Book Synopsis Design of Racing and High-Performance Engines 2004-2013 by : Douglas Fehan

Download or read book Design of Racing and High-Performance Engines 2004-2013 written by Douglas Fehan and published by SAE International. This book was released on 2013-02-12 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: This compendium is an update to two best-selling editions published by SAE International in 1995 and 2003. Editor Doug Fehan has assembled a collection of technical papers from the SAE archive that will inspire readers to use race engine development as an important tool in the future of transportation. He focuses on several topics that are important to future race engine design: electrification, materials and processes, and improved technology. Today’s electric hybrid vehicles and kinetic energy recovery systems embody what inventors envisioned in the early 1900s. First employed in trams and trains of that era, the technology was almost forgotten until racers resurrected their version in 2009 F-1 racing. The automotive industry has long admired the aircraft industry’s use of lightweight metals, advanced finishing processes, and composites. The use of these materials and processes has helped reduce overall mass and, in turn, improved speed, performance, and reliability of race engines. Their initial high cost was a limiting factor for integrating them into mass-produced vehicles. With racing leading the way, those limitations were overcome and vehicles today feature some amazing adaptations of those processes and materials. Engine power, efficiency, durability, reliability, and, more recently, emissions have always been of primary importance to the automotive world. The expanding use of electrification, biofuels, CNG, high-pressure fuel delivery systems, combustion air management, turbocharging, supercharging, and low-viscosity lubricants have been the focus of race engine development and are now turning up in dealer showrooms. The papers in this publication were selected for two reasons: they demonstrate the leadership that racing plays in the future of automotive engineering and design as it relates to engines; and they will be interesting to everyone who may be in racing and to those who may want to be in racing.

Mechanical Engineering for Sustainable Development: State-of-the-Art Research

Author : C.S.P. Rao
Publisher : CRC Press
ISBN 13 : 1351170155
Total Pages : 640 pages
Book Rating : 4.3/5 (511 download)

DOWNLOAD NOW!

Book Synopsis Mechanical Engineering for Sustainable Development: State-of-the-Art Research by : C.S.P. Rao

Download or read book Mechanical Engineering for Sustainable Development: State-of-the-Art Research written by C.S.P. Rao and published by CRC Press. This book was released on 2019-01-04 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides valuable insight into diverse topics related to mechanical engineering and presents state-of-the-art work on sustainable development being carried out throughout the world by budding researchers and scientists. Divided into three sections, the volume covers machine design, materials and manufacturing, and thermal engineering. It presents innovative research work on machine design that is of relevance to such varied fields as the automotive industry, agriculture, and human anatomy. The second section addresses materials characterization, an important tool in assessing proper materials for application-oriented jobs, and emerging unconventional machining processes that are important in design engineering for new products and tools. The section on thermal engineering broadly covers the use of viable alternate fuels, such as HHO, biodiesel, etc., with the objective of reducing the burden on petroleum reserves and the environment.

1D and Multi-D Modeling Techniques for IC Engine Simulation

Author : Angelo Onorati
Publisher : SAE International
ISBN 13 : 0768099528
Total Pages : 552 pages
Book Rating : 4.7/5 (68 download)

DOWNLOAD NOW!

Book Synopsis 1D and Multi-D Modeling Techniques for IC Engine Simulation by : Angelo Onorati

Download or read book 1D and Multi-D Modeling Techniques for IC Engine Simulation written by Angelo Onorati and published by SAE International. This book was released on 2020-04-06 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1D and Multi-D Modeling Techniques for IC Engine Simulation provides a description of the most significant and recent achievements in the field of 1D engine simulation models and coupled 1D-3D modeling techniques, including 0D combustion models, quasi-3D methods and some 3D model applications.

Turbocharger Integration into Multidimensional Engine Simulations to Enable Transient Load Cases

Author : Andreas Kächele
Publisher : Springer Nature
ISBN 13 : 3658287861
Total Pages : 123 pages
Book Rating : 4.6/5 (582 download)

DOWNLOAD NOW!

Book Synopsis Turbocharger Integration into Multidimensional Engine Simulations to Enable Transient Load Cases by : Andreas Kächele

Download or read book Turbocharger Integration into Multidimensional Engine Simulations to Enable Transient Load Cases written by Andreas Kächele and published by Springer Nature. This book was released on 2019-11-29 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite the increasing interest in multidimensional combustion engine simulation from researchers and industry, the field of application has been restricted to stationary operating points for turbocharged engines. Andreas Kächele presents a 3D-CFD approach to extend the simulation into the transient regime, enabling the detailed analysis of phenomena during changes in engine operating point. The approach is validated by means of a virtual hot gas test bench and experiments on a two-cylinder engine.

Mixture Formation in Internal Combustion Engines

Author : Carsten Baumgarten
Publisher : Springer
ISBN 13 : 9783540308355
Total Pages : 0 pages
Book Rating : 4.3/5 (83 download)

DOWNLOAD NOW!

Book Synopsis Mixture Formation in Internal Combustion Engines by : Carsten Baumgarten

Download or read book Mixture Formation in Internal Combustion Engines written by Carsten Baumgarten and published by Springer. This book was released on 2006-02-13 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A systematic control of mixture formation with modern high-pressure injection systems enables us to achieve considerable improvements of the combustion pr- ess in terms of reduced fuel consumption and engine-out raw emissions. However, because of the growing number of free parameters due to more flexible injection systems, variable valve trains, the application of different combustion concepts within different regions of the engine map, etc., the prediction of spray and m- ture formation becomes increasingly complex. For this reason, the optimization of the in-cylinder processes using 3D computational fluid dynamics (CFD) becomes increasingly important. In these CFD codes, the detailed modeling of spray and mixture formation is a prerequisite for the correct calculation of the subsequent processes like ignition, combustion and formation of emissions. Although such simulation tools can be viewed as standard tools today, the predictive quality of the sub-models is c- stantly enhanced by a more accurate and detailed modeling of the relevant pr- esses, and by the inclusion of new important mechanisms and effects that come along with the development of new injection systems and have not been cons- ered so far. In this book the most widely used mathematical models for the simulation of spray and mixture formation in 3D CFD calculations are described and discussed. In order to give the reader an introduction into the complex processes, the book starts with a description of the fundamental mechanisms and categories of fuel - jection, spray break-up, and mixture formation in internal combustion engines.

Computational Optimization of Internal Combustion Engines

Author : Yu Shi
Publisher : Springer Science & Business Media
ISBN 13 : 0857296191
Total Pages : 323 pages
Book Rating : 4.8/5 (572 download)

DOWNLOAD NOW!

Book Synopsis Computational Optimization of Internal Combustion Engines by : Yu Shi

Download or read book Computational Optimization of Internal Combustion Engines written by Yu Shi and published by Springer Science & Business Media. This book was released on 2011-06-22 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computational Optimization of Internal Combustion Engines presents the state of the art of computational models and optimization methods for internal combustion engine development using multi-dimensional computational fluid dynamics (CFD) tools and genetic algorithms. Strategies to reduce computational cost and mesh dependency are discussed, as well as regression analysis methods. Several case studies are presented in a section devoted to applications, including assessments of: spark-ignition engines, dual-fuel engines, heavy duty and light duty diesel engines. Through regression analysis, optimization results are used to explain complex interactions between engine design parameters, such as nozzle design, injection timing, swirl, exhaust gas recirculation, bore size, and piston bowl shape. Computational Optimization of Internal Combustion Engines demonstrates that the current multi-dimensional CFD tools are mature enough for practical development of internal combustion engines. It is written for researchers and designers in mechanical engineering and the automotive industry.

Simulation and Optimization of Internal Combustion Engines

Author : Zhiyu Han
Publisher : SAE International
ISBN 13 : 1468604007
Total Pages : 372 pages
Book Rating : 4.4/5 (686 download)

DOWNLOAD NOW!

Book Synopsis Simulation and Optimization of Internal Combustion Engines by : Zhiyu Han

Download or read book Simulation and Optimization of Internal Combustion Engines written by Zhiyu Han and published by SAE International. This book was released on 2021-12-28 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: Simulation and Optimization of Internal Combustion Engines provides the fundamentals and up-to-date progress in multidimensional simulation and optimization of internal combustion engines. While it is impossible to include all the models in a single book, this book intends to introduce the pioneer and/or the often-used models and the physics behind them providing readers with ready-to-use knowledge. Key issues, useful modeling methodology and techniques, as well as instructive results, are discussed through examples. Readers will understand the fundamentals of these examples and be inspired to explore new ideas and means for better solutions in their studies and work. Topics include combustion basis of IC engines, mathematical descriptions of reactive flow with sprays, engine in-cylinder turbulence, fuel sprays, combustions and pollutant emissions, optimization of direct-injection gasoline engines, and optimization of diesel and alternative fuel engines.

Cfd Simulation of Internal Combustion Engines

Author : Abhijeet Vaidya
Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783838374413
Total Pages : 276 pages
Book Rating : 4.3/5 (744 download)

DOWNLOAD NOW!

Book Synopsis Cfd Simulation of Internal Combustion Engines by : Abhijeet Vaidya

Download or read book Cfd Simulation of Internal Combustion Engines written by Abhijeet Vaidya and published by LAP Lambert Academic Publishing. This book was released on 2010-07 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding highly complex nature of flow in an IC engine is essential to optimize its performance. However, the events like reciprocating motion of piston, motion of valves, turbulence generation, spray and mixing lead to a complex flow pattern. CFD is very useful in computing and understanding this complex flow pattern. In this book, all aspects of CFD technique to simulate the mixing of fuel with air in GDI engines are explained. The book covers the governing equations, numerical techniques for solving them, method of analysis of data (in the context of mixing processes) and programming techniques. The book will be useful for professionals who are performing CFD analysis using CFD softwares for thermal systems specifically reciprocating systems like engines, compressors and systems involving sprays, mixing etc. It is also useful for those who are developing CFD tools.

Two-Stroke Cycle Engine

Author : JohnB. Heywood
Publisher : Routledge
ISBN 13 : 1351406450
Total Pages : 425 pages
Book Rating : 4.3/5 (514 download)

DOWNLOAD NOW!

Book Synopsis Two-Stroke Cycle Engine by : JohnB. Heywood

Download or read book Two-Stroke Cycle Engine written by JohnB. Heywood and published by Routledge. This book was released on 2017-11-01 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses the two-stroke cycle internal combustion engine, used in compact, lightweight form in everything from motorcycles to chainsaws to outboard motors, and in large sizes for marine propulsion and power generation. It first provides an overview of the principles, characteristics, applications, and history of the two-stroke cycle engine, followed by descriptions and evaluations of various types of models that have been developed to predict aspects of two-stroke engine operation.

Evaluating Chemical Kinetic Behaviors in Internal Combustion Engines Using Simplified Zero-dimensional Models

Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (134 download)

DOWNLOAD NOW!

Book Synopsis Evaluating Chemical Kinetic Behaviors in Internal Combustion Engines Using Simplified Zero-dimensional Models by :

Download or read book Evaluating Chemical Kinetic Behaviors in Internal Combustion Engines Using Simplified Zero-dimensional Models written by and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three-Dimensional (3-D) Computational Fluid Dynamics (CFD) models are one of the most common and robust methods used to model Internal Combustion Engine (ICE) in the automotive industry, particularly with respect to the complex fluid flow and heat transfer processes in engines. However, these methods can become extremely computationally expensive when simulating detailed chemical kinetic mechanisms or multi-component surrogate fuel blends where thousands of reactions must be solved simultaneously and are thus not well suited for kinetic mechanism development and evaluation. The goal of this research work is to use a simplified Zero-Dimensional (0-D) engine model to evaluate kinetic behaviors including Low Temperature Heat Release (LTHR) and Auto-Ignition (AI), and evaluate the role of thermal stratification on these predictions. Firstly, a large-bore low-swirl heavy-duty Homogeneous Charge Compression Ignition (HCCI) engine, namely the Caterpillar 3401 Single Cylinder Oil Test Engine (SCOTE), was simulated. In this work, three 0-D models were designed in Chemkin Pro, each denoted by the number of simulated "zones": Single-Zone (SZ), 3-Zone (3Z), and 6-Zone (6Z). To validate these models, the Chemkin results including cylinder pressure, temperature, and Heat Release Rate (HRR) traces were compared with existing 3D CFD model results. In the Chemkin 3Z model, an "Area Fraction (AF) Method" was found to match well with the CFD results under different operating conditions and can be attributed to the reduced role of thermal stratification in this engine platform. Therefore, an engine with higher thermal stratification effect: small bore, high-swirl and light-duty, namely the Cooperative Fuels Research (CFR) engine, has been modeled and validated. As expected, the success of the 3Z AF method that we made on the SCOTE engine cannot be fully replicated on the CFR engine. Future work may include extending the AF method to more zones and validating these 0D models under Spark-Ignition (SI) combustion conditions.

Development of an Integrated CFD Approach for Internal Nozzle Flows and Sprays

Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (867 download)

DOWNLOAD NOW!

Book Synopsis Development of an Integrated CFD Approach for Internal Nozzle Flows and Sprays by :

Download or read book Development of an Integrated CFD Approach for Internal Nozzle Flows and Sprays written by and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In modern automotive internal combustion engines the atomization and spraying processes of liquid fuel is an important mechanism by which the fuel is mixed effectively with the combustion chamber gas. The homogeneity of the fuel-air mixture charge and the timing to achieve it affect the characteristics of the subsequent combustion in a number of ways. Experimentalists have found that the atomization process is influenced by the fuel delivery system, specifically, the operating conditions of fuel injection and the internal geometry of the injector nozzles. Therefore, modeling researchers must develop spray models that properly take into account these effects from the injectors. A Computational Fluid Dynamics (CFD) model is developed to simulate internal injector nozzle flows and the external-nozzle atomization and sprays in an integrated way. In light of the continuous nature of the flow within and near the nozzle, an Eulerian flow solver is developed and applied in these regions. This flow solver models compressible two-phase flows with general conservation laws of fluid dynamics. Differences in the thermodynamic states of liquid and gas phases are properly modeled with an Equation of State (EOS). The chosen numerical methods are sufficiently robust to handle pressure and density gradients up to 1000:1 and are able to cover the typical operating ranges of modern diesel and gasoline injection systems. A phase equilibrium model is developed based on the fundamental thermodynamic laws. It is implemented into the Eulerian flow solver to predict phase change in the flows - in particular, the cavitation of liquid fuel within the fuel injector nozzle and how it influences the external flows. A number of test problems are simulated to verify the numerical methods and validate the proposed models. These include two-phase shock tube problems, a shock-interface interaction problem, a converging-diverging nozzle flow problem, and most importantly, high-pressure fuel injection problems. The Eulerian flow solver requires the CFD mesh size to be smaller than the characteristic phase interface length scale in order to apply the continuum fluid assumption. This requirement is challenged beyond a certain distance from the nozzle where the spray is dispersed. Here the mesh size affordable by engineering calculation is too coarse for the Eulerian solver to be applied. At this stage, the Eulerian liquid phase can be transitioned into Lagrangian discrete particles to model the dispersed spray droplets. The modeling of the sub-grid droplet size at this transition stage is based on local balances between turbulent kinetic energy and surface energy. The Eulerian flow solver coupled with the phase equilibrium model and the Eulerian-Lagrangian transition model provides an engineering CFD approach to study the effects of injector nozzle flows on the atomization and sprays.