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Preliminary Numerical Simulations Of A Medium Head Francis Turbine At Speed No Load
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Author :Pierre-Luc Gagnon (Auteur de Preliminary numerical simulations of a medium head Francis turbine at speed no-load) Publisher : ISBN 13 : Total Pages :105 pages Book Rating :4.:/5 (128 download)
Book Synopsis Preliminary numerical simulations of a medium head Francis turbine at speed no-load by : Pierre-Luc Gagnon (Auteur de Preliminary numerical simulations of a medium head Francis turbine at speed no-load)
Download or read book Preliminary numerical simulations of a medium head Francis turbine at speed no-load written by Pierre-Luc Gagnon (Auteur de Preliminary numerical simulations of a medium head Francis turbine at speed no-load) and published by . This book was released on 2021 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce projet de maîtrise vise à faire une caractérisation préliminaire de l'écoulement d'une turbine Francis de moyenne chute au régime sans charge dans le cadre du projet Tr-Francis au Laboratoire de machines hydrauliques. Concrètement, le projet a validé la méthodologie numérique utilisée à l'aide de mesures expérimentales préliminaires. De plus, les simulations numérique sont permis de fournir les chargements fluides afin que des simulations structurelles puissent être réalisées. Finalement, les résultats ont permis de cibler les structures dominantes dans l'écoulement qui causent les plus importantes fluctuations de pression et ainsi aider l'équipe expérimentale à positionner les capteurs de pression et à choisir leurs plans de mesures. Pour y arriver, la méthodologie est basée sur des interpolations de mesures effectuées par Hydro-Québec au régime sans charge sur le prototype. Les données sont prises telles quelles pour les simulations effectuées à l'échelle prototype et elles sont mise à l'échelle grâce aux lois de similitude de la norme IEC 60193 pour les simulations à l'échelle modèle. L'effet des conditions d'entrée dans le domaine est étudié sur des domaines partiels avec des maillages de différentes densités ainsi que sur le domaine complet. Les pressions obtenues numériquement dans l'aspirateur sont comparées aux mesures expérimentales préliminaires et les résultats sont concordants. De plus, les poches de cavitations observées numériquement au bord de fuite remontant sur le côté pression des aubes sont, de plus, confirmées par l'expérimentation. Des analyses fréquentielles à partir des signaux de pression sont utilisées dans ce projet afin de caractériser les phénomènes. En plus d'utiliser différentes méthodes de visualisation numériques afin d'isoler et d'analyser les structures principales dans l'écoulement. Imposer un profil de vitesse uniforme comparativement à un profil de vitesse tiré de simulations de la bâche et de la conduite d'amenée ne modifie pas les résultats significativement à l'échelle modèle avec le maillage le plus fin. Lors des simulations avec le domaine complet, plusieurs phénomènes d'importances ont été observés. Notamment des tourbillons inter-aubes, qui ont une modulation à f/n = 1, une importante zone de recirculation dans l'aspirateur qui remonte jusque dans la roue, des tourbillons à l'interface entre la roue et l'aspirateur qui se développent dans la couche cisaillée, un débalancement de l'aspirateur causé par le coude ainsi qu'une zone cavitante au bord de fuite.
Book Synopsis Numerical Simulation of Flow in a High Head Francis Turbine with Prediction of Efficiency, Rotor Stator Interaction and Vortex Structures in the Draft Tube by :
Download or read book Numerical Simulation of Flow in a High Head Francis Turbine with Prediction of Efficiency, Rotor Stator Interaction and Vortex Structures in the Draft Tube written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Simulation and Analysis of the Internal Flow in a Francis Turbine with Air Admission by :
Download or read book Numerical Simulation and Analysis of the Internal Flow in a Francis Turbine with Air Admission written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 3D Numerical Modeling of Transient Conditions in Francis Turbines by : Hossein Hosseinimanesh
Download or read book 3D Numerical Modeling of Transient Conditions in Francis Turbines written by Hossein Hosseinimanesh and published by . This book was released on 2016 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Steady and Unsteady Numerical Simulations of the Flow in the Tokke Francis Turbine Model, at Three Operating Conditions by :
Download or read book Steady and Unsteady Numerical Simulations of the Flow in the Tokke Francis Turbine Model, at Three Operating Conditions written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydrodynamics of Francis Turbine Operation at Deep Part Load Condition by : Keita Yamamoto
Download or read book Hydrodynamics of Francis Turbine Operation at Deep Part Load Condition written by Keita Yamamoto and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Mots-clés de l'auteur: Francis turbine ; deep part load ; cavitation ; inter-blade vortex ; visualization ; on-board measurement ; numerical simulation ; unsteady RANS.
Book Synopsis Numerical Simulation of Pressure Oscillations in Large Francis Turbines at Partial and Full Load Operating Conditions and Their Effects on the Runner Structural Behaviour and Fatigue Life by : Marcelo Magnoli
Download or read book Numerical Simulation of Pressure Oscillations in Large Francis Turbines at Partial and Full Load Operating Conditions and Their Effects on the Runner Structural Behaviour and Fatigue Life written by Marcelo Magnoli and published by . This book was released on 2014 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flow-Induced Pulsation and Vibration in Hydroelectric Machinery by : Peter Dörfler
Download or read book Flow-Induced Pulsation and Vibration in Hydroelectric Machinery written by Peter Dörfler and published by Springer Science & Business Media. This book was released on 2012-08-28 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the 1970’s, an increasing amount of specialized research has focused on the problems created by instability of internal flow in hydroelectric power plants. However, progress in this field is hampered by the interdisciplinary nature of the subject, between fluid mechanics, structural mechanics and hydraulic transients. Flow-induced Pulsation and Vibration in Hydroelectric Machinery provides a compact guidebook explaining the many different underlying physical mechanisms and their possible effects. Typical phenomena are described to assist in the proper diagnosis of problems and various key strategies for solution are compared and considered with support from practical experience and real-life examples. The link between state-of the-art CFD computation and notorious practical problems is discussed and quantitative data is provided on normal levels of vibration and pulsation so realistic limits can be set for future projects. Current projects are also addressed as the possibilities and limitations of reduced-scale model tests for prediction of prototype performance are explained. Engineers and project planners struggling with the practical problems will find Flow-induced Pulsation and Vibration in Hydroelectric Machinery to be a comprehensive and convenient reference covering key topics and ideas across a range of relevant disciplines.
Book Synopsis Basic Concepts in Turbomachinery by :
Download or read book Basic Concepts in Turbomachinery written by and published by Bookboon. This book was released on with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Finite Element Analysis by : Saeed Moaveni
Download or read book Finite Element Analysis written by Saeed Moaveni and published by Prentice Hall. This book was released on 2003-01 with total page 822 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intended for courses in Finite Element Analysis, this text presents the theory of finite element analysis. It explores its application as a design/modeling tool, and explains in detail how to use ANSYS intelligently and effectively.
Book Synopsis Renewable and Efficient Electric Power Systems by : Gilbert M. Masters
Download or read book Renewable and Efficient Electric Power Systems written by Gilbert M. Masters and published by John Wiley & Sons. This book was released on 2005-01-03 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a comprehensive textbook for the new trend of distributed power generation systems and renewable energy sources in electric power systems. It covers the complete range of topics from fundamental concepts to major technologies as well as advanced topics for power consumers. An Instructor's Manual presenting detailed solutions to all the problems in the book is available from the Wiley editorial department -- to obtain the manual, send an email to [email protected]
Book Synopsis Vehicle Propulsion Systems by : Lino Guzzella
Download or read book Vehicle Propulsion Systems written by Lino Guzzella and published by Springer Science & Business Media. This book was released on 2007-09-21 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors of this text have written a comprehensive introduction to the modeling and optimization problems encountered when designing new propulsion systems for passenger cars. It is intended for persons interested in the analysis and optimization of vehicle propulsion systems. Its focus is on the control-oriented mathematical description of the physical processes and on the model-based optimization of the system structure and of the supervisory control algorithms.
Book Synopsis Introduction to Modeling and Control of Internal Combustion Engine Systems by : Lino Guzzella
Download or read book Introduction to Modeling and Control of Internal Combustion Engine Systems written by Lino Guzzella and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: Internal combustion engines still have a potential for substantial improvements, particularly with regard to fuel efficiency and environmental compatibility. These goals can be achieved with help of control systems. Modeling and Control of Internal Combustion Engines (ICE) addresses these issues by offering an introduction to cost-effective model-based control system design for ICE. The primary emphasis is put on the ICE and its auxiliary devices. Mathematical models for these processes are developed in the text and selected feedforward and feedback control problems are discussed. The appendix contains a summary of the most important controller analysis and design methods, and a case study that analyzes a simplified idle-speed control problem. The book is written for students interested in the design of classical and novel ICE control systems.
Book Synopsis Advances in Wind Energy Conversion Technology by : Mathew Sathyajith
Download or read book Advances in Wind Energy Conversion Technology written by Mathew Sathyajith and published by Springer Science & Business Media. This book was released on 2011-04-29 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: With an annual growth rate of over 35%, wind is the fastest growing energy source in the world today. As a result of intensive research and developmental efforts, the technology of generating energy from wind has significantly changed during the past five years. The book brings together all the latest aspects of wind energy conversion technology - right from the wind resource analysis to grid integration of the wind generated electricity. The chapters are contributed by academic and industrial experts having vast experience in these areas. Each chapter begins with an introduction explaining the current status of the technology and proceeds further to the advanced lever to cater for the needs of readers from different subject backgrounds. Extensive bibliography/references appended to each chapter give further guidance to the interested readers.
Author :German Ardul Munoz-Hernandez Publisher :Springer Science & Business Media ISBN 13 :1447122917 Total Pages :301 pages Book Rating :4.4/5 (471 download)
Book Synopsis Modelling and Controlling Hydropower Plants by : German Ardul Munoz-Hernandez
Download or read book Modelling and Controlling Hydropower Plants written by German Ardul Munoz-Hernandez and published by Springer Science & Business Media. This book was released on 2012-06-13 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydroelectric power stations are a major source of electricity around the world; understanding their dynamics is crucial to achieving good performance. The electrical power generated is normally controlled by individual feedback loops on each unit. The reference input to the power loop is the grid frequency deviation from its set point, thus structuring an external frequency control loop. The book discusses practical and well-documented cases of modelling and controlling hydropower stations, focused on a pumped storage scheme based in Dinorwig, North Wales. These accounts are valuable to specialist control engineers who are working in this industry. In addition, the theoretical treatment of modern and classic controllers will be useful for graduate and final year undergraduate engineering students. This book reviews SISO and MIMO models, which cover the linear and nonlinear characteristics of pumped storage hydroelectric power stations. The most important dynamic features are discussed. The verification of these models by hardware in the loop simulation is described. To show how the performance of a pumped storage hydroelectric power station can be improved, classical and modern controllers are applied to simulated models of Dinorwig power plant, that include PID, Fuzzy approximation, Feed-Forward and Model Based Predictive Control with linear and hybrid prediction models.
Book Synopsis Guide to Neural Computing Applications by : Lionel Tarassenko
Download or read book Guide to Neural Computing Applications written by Lionel Tarassenko and published by Elsevier. This book was released on 1998-01-30 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neural networks have shown enormous potential for commercial exploitation over the last few years but it is easy to overestimate their capabilities. A few simple algorithms will learn relationships between cause and effect or organise large volumes of data into orderly and informative patterns but they cannot solve every problem and consequently their application must be chosen carefully and appropriately. This book outlines how best to make use of neural networks. It enables newcomers to the technology to construct robust and meaningful non-linear models and classifiers and benefits the more experienced practitioner who, through over familiarity, might otherwise be inclined to jump to unwarranted conclusions. The book is an invaluable resource not only for those in industry who are interested in neural computing solutions, but also for final year undergraduates or graduate students who are working on neural computing projects. It provides advice which will help make the best use of the growing number of commercial and public domain neural network software products, freeing the specialist from dependence upon external consultants.
Book Synopsis The Gas Turbine Handbook by : Tony Giampaolo
Download or read book The Gas Turbine Handbook written by Tony Giampaolo and published by The Fairmont Press, Inc.. This book was released on 2003 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of a bestseller, this comprehensive reference provides the fundamental information required to understand both the operation and proper application of all types of gas turbines. The completely updated second edition adds a new section on use of inlet cooling for power augmentation and NOx control. It explores the full spectrum of gas turbines hardware, typical application scenarios, and operating parameters, controls, inlet treatments, inspection, trouble-shooting, and more. The author discusses strategies that can help readers avoid problems before they occur and provides tips that enable diagnosis of problems in their early stages and analysis of failures to prevent their recurrence.
