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Modeling The Atomization Of A Liquid Jet And Application Of The Model To Large Diameter Molton Corium Jets
Download Modeling The Atomization Of A Liquid Jet And Application Of The Model To Large Diameter Molton Corium Jets full books in PDF, epub, and Kindle. Read online Modeling The Atomization Of A Liquid Jet And Application Of The Model To Large Diameter Molton Corium Jets ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Modeling the Atomization of a Liquid Jet and Application of the Model to Large Diameter, Molton Corium Jets by : Stuart Curtis Winquist
Download or read book Modeling the Atomization of a Liquid Jet and Application of the Model to Large Diameter, Molton Corium Jets written by Stuart Curtis Winquist and published by . This book was released on 1986 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Reactor Safety Research Semiannual Report by :
Download or read book Reactor Safety Research Semiannual Report written by and published by . This book was released on 1986-07 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the U.S. Nuclear Regulatory Commission ... Water Reactor Safety Research Information Meeting by :
Download or read book Proceedings of the U.S. Nuclear Regulatory Commission ... Water Reactor Safety Research Information Meeting written by and published by . This book was released on 1987 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Atomization Modeling of Liquid Jets Using an Eulerian-Eulerian Model and a Surface Density Approach by : Bejoy Mandumpala devassy
Download or read book Atomization Modeling of Liquid Jets Using an Eulerian-Eulerian Model and a Surface Density Approach written by Bejoy Mandumpala devassy and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In internal combustion engines, the liquid fuel injection is an essential step for the air/fuel mixture preparation and the combustion process. Indeed, the structure of the liquid jet coming out from the injector plays a key role in the proper mixing of the fuel with the gas in the combustion chamber. The present work focuses on the liquid jet atomization phenomena under Diesel engine conditions. Under these conditions, liquid jet morphology includes a separate liquid phase (i.e. a liquid core) and a dispersed liquid phase (i.e. a spray). This manuscript describes the development stages of a new atomization model, for a high speed liquid jet, based on an eulerian two-phase approach. The atomization phenomenon is modeled by defining different surface density equations, for the liquid core and the spray droplets. This new model has been coupled with a turbulent two-phase system of equations of Baer-Nunziato type. The process of ligament breakup and its subsequent breakup into droplets are handled with respect to available experiments and high fidelity numerical simulations. In the dense region of the liquid jet, the atomization is modeled as a dispersion process due to the turbulent stretching of the interface, from the side of liquid in addition to the gas side. Different academic test cases have been performed in order to verify the numerical implementation of the model in the IFP-C3D software. Finally, the model is validated with the recently published DNS results under typical conditions of direct injection Diesel engines.
Book Synopsis Hydrodynamics of Inverted Annular Flow and Flow Regime Transition by : Tirng-Juhng Robert Luh
Download or read book Hydrodynamics of Inverted Annular Flow and Flow Regime Transition written by Tirng-Juhng Robert Luh and published by . This book was released on 1988 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Liquid Atomization written by L.P. Bayvel and published by Routledge. This book was released on 2019-01-22 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering the basics of liquid atomization, this book familiarizes readers with the physical processes of liquid atomization, the main types of atomizers and their design, measurements of spray characteristics, experimental investigations of atomizers, and application of atomizers. It demonstrates how to calculate and design atomizers and how to mea
Book Synopsis Model Experiments on Atomization of Liquids by : Mintscho Popov
Download or read book Model Experiments on Atomization of Liquids written by Mintscho Popov and published by . This book was released on 1961 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling Liquid Jet Atomization Processes by :
Download or read book Modeling Liquid Jet Atomization Processes written by and published by . This book was released on 1994 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes efforts in developing an analytic/numerical modeling capability for both steady and unsteady liquid jet atomization processes. The research involves the application of boundary element methods to model nonlinear deformation of liquid surfaces. An inviscid model has been developed to investigate dynamics of a finite-length jet which includes the presence of the orifice flow passages. In addition, a second model has been developed to simulate gas-phase interactions with the distorting jet surface. Preliminary developments associated with a viscous model are also discussed. (AN).
Author :Christopher Michael Varga Publisher :Ann Arbor, Mich. : University Microfilms International ISBN 13 : Total Pages :432 pages Book Rating :4.:/5 (318 download)
Book Synopsis Atomization of a Small-diameter Liquid Jet by a High-speed Gas Stream by : Christopher Michael Varga
Download or read book Atomization of a Small-diameter Liquid Jet by a High-speed Gas Stream written by Christopher Michael Varga and published by Ann Arbor, Mich. : University Microfilms International. This book was released on 2002 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling of Liquid Jet Atomization Processes by :
Download or read book Modeling of Liquid Jet Atomization Processes written by and published by . This book was released on 1996 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes atomization simulations performed to investigate the role of this process in liquid rocket engine combustion instabilities. The research involves the development and application of a series of nonlinear free surface models based on boundary element methods (B EMs). Models have been developed to study the effects of unsteady injection, transverse acoustic wave interactions (such as those experienced in the F-1 engine), longitudinal acoustic wave interactions, and the dynamics of droplets in the presence of an acoustic wave. Results for each of these four models is presented in this document.
Book Synopsis Atomization and Sprays by : Arthur Lefebvre
Download or read book Atomization and Sprays written by Arthur Lefebvre and published by CRC Press. This book was released on 1988-12-01 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atomization and Sprays examines the atomization of liquids and characteristics of sprays. It explains the physical processes of atomization as well as guidelines for designing atomizers. In addition, it demonstrates how the importance of the size and velocity of a particle contributes to improved spray characterization. Coverage includes general co
Book Synopsis New Approaches for Modeling of Liquid Jet Atomization Processes by :
Download or read book New Approaches for Modeling of Liquid Jet Atomization Processes written by and published by . This book was released on 1996 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes atomization simulations performed to investigate the role of this process in liquid rocket engine combustion instabilities. The research involves the development and application of a series of nonlinear free-surface models based on boundary element methods (BEMs). Models have been developed to study the effects of unsteady injection, transverse acoustic wave interactions (such as those experienced in the F-1 engine), longitudinal acoustic wave interactions, and the dynamics of droplets in the presence of an acoustic wave. Reults for each of these four models is presented in this document.
Book Synopsis Large Eddy Simulation of Liquid Jet Primary Breakup by : Feng Xiao
Download or read book Large Eddy Simulation of Liquid Jet Primary Breakup written by Feng Xiao and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Atomisation of liquid fuel jets is an important determinant of combustion performance in gas turbine engines, and thus is the prime research driver here. Since the first stage of the atomisation process primary breakup has not been well understood due to its complexity, the objective of the current project is to develop a robust algorithm for Large Eddy Simulation (LES) to predict primary breakup. In order to provide realistic turbulent inflows for LES of liquid jet primary breakup, a rescaling/recycling method has been developed and validated. Three interface capturing ethods, namely Level Set (LS), Volume of Fluid (VOF), and coupled Level Set and VOF (CLSVOF), have been implemented and evaluated. The CLSVOF technique is adopted as the interface-tracking method in order to combine the advantages of LS and VOF methods. Due to the discontinuity of density and viscosity across the interface, simulations can become unstable due to numerical errors when a conventional discretisation approach is applied. Therefore, the governing equations are discretised here by introducing an extrapolated liquid velocity to minimise the interface momentum error, showing significant improvement in accuracy and robustness for simulations of primary breakup. For several reasons, single drop breakup in a uniform air flow is chosen as a benchmark test case for validation of the developed methodology for modelling atomisation. It is shown that the predicted drop breakup agrees quantitatively well with experiments for different Weber numbers. The solver is then applied to simulate primary breakup of liquid jets, which are more relevant to industrial applications. By simulating single round water jet atomisation in high-speed coaxial air flow, it is found that the predicted liquid core breakup lengths at different air/liquid velocities agree closely with measured data, but only when appropriate turbulent inflow conditions are specified. In simulations of liquid jet breakup in air crossflow, the penetration of the liquid jet is also well reproduced when turbulent inflows are used. In both simulations, it is found that the turbulence convected downstream from the injection nozzles affects significantly the primary breakup process, and the liquid turbulence rather than the gas turbulence plays a dominant role in initial disturbance of the liquid jet surface.
Book Synopsis Detailed Numerical Simulation of Liquid Jet in Crossflow Atomization with High Density Ratios by : Sina Ghods
Download or read book Detailed Numerical Simulation of Liquid Jet in Crossflow Atomization with High Density Ratios written by Sina Ghods and published by . This book was released on 2013 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: The atomization of a liquid jet by a high speed cross-flowing gas has many applications such as gas turbines and augmentors. The mechanisms by which the liquid jet initially breaks up, however, are not well understood. Experimental studies suggest the dependence of spray properties on operating conditions and nozzle geometry. Detailed numerical simulations can offer better understanding of the underlying physical mechanisms that lead to the breakup of the injected liquid jet. In this work, detailed numerical simulation results of turbulent liquid jets injected into turbulent gaseous cross flows for different density ratios is presented. A finite volume, balanced force fractional step flow solver to solve the Navier-Stokes equations is employed and coupled to a Refined Level Set Grid method to follow the phase interface. To enable the simulation of atomization of high density ratio fluids, we ensure discrete consistency between the solution of the conservative momentum equation and the level set based continuity equation by employing the Consistent Rescaled Momentum Transport (CRMT) method. The impact of different inflow jet boundary conditions on different jet properties including jet penetration is analyzed and results are compared to those obtained experimentally by Brown & McDonell(2006). In addition, instability analysis is performed to find the most dominant insta- bility mechanism that causes the liquid jet to breakup. Linear instability analysis is achieved using linear theories for Rayleigh-Taylor and Kelvin- Helmholtz instabilities and non-linear analysis is performed using our flow solver with different inflow jet boundary conditions.
Book Synopsis Numerical Modeling for Primary Atomization of Liquid Jets by : A. Przekwas
Download or read book Numerical Modeling for Primary Atomization of Liquid Jets written by A. Przekwas and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling of Turbulence Effect on Liquid Jet Atomization by : Huu Phuoc Trinh
Download or read book Modeling of Turbulence Effect on Liquid Jet Atomization written by Huu Phuoc Trinh and published by . This book was released on 2004 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Simulation of a Liquid Jet Atomization and Break-up Using ANSYS-CFX 12.0 by : Yash Akhil Bhatt
Download or read book Numerical Simulation of a Liquid Jet Atomization and Break-up Using ANSYS-CFX 12.0 written by Yash Akhil Bhatt and published by . This book was released on 2010 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Break-up and atomization characteristics of JetA liquid fuel were investigated numerically. The results have been compared to various experimental results to evaluate the accuracy of the numerical model. The CDF code ANSYS-CFX 12.0 was used to carry out the steady state analysis at different time scales. A comparison between the atomization characteristics of a pressure jet atomizer and an air-blast atomizer is shown."--Leaf iii.
