Modelling Of Transient Dynamics Of Gas Flow In Pipes

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Modelling Of Transient Dynamics Of Gas Flow In Pipes

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Author : Stephen Emmerson
language : en
Publisher:
Release Date : 1991

Modelling Of Transient Dynamics Of Gas Flow In Pipes written by Stephen Emmerson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.

One Dimensional Transient Flow In Pipelines Modelling And Simulation

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Author : Abdelaziz Ghodhbani
language : en
Publisher: Bentham Science Publishers
Release Date : 2023-10-03

One Dimensional Transient Flow In Pipelines Modelling And Simulation written by Abdelaziz Ghodhbani and has been published by Bentham Science Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-10-03 with Technology & Engineering categories.

This book presents numerical computational fluid dynamics (CFD) solutions for studying the effect of fluid-structure interaction (FSI) on evaluation of pressure waves in pipelines with cavitation. The authors develop a uniform one-dimensional model using coupled models. These models consider unsteady friction (UF), Poisson coupling, axial vibration (junction coupling), gas release and viscoelasticity. The authors consider two cases: elastic pipelines and viscoelastic (VE) pipelines. The book starts with a detailed literature review on the relevant methods for calculating transient fluid flow, followed by chapters that explain the mathematical development for calculations and the numerical steps for water hammer and transient cavitation. The concluding chapters present the results for the two pipeline cases. The book is presented in simple language intended for engineering students who want to understand CFD simulations for transient flow in pipelines. Equations are explained in simple steps for easy understanding, and concepts are illustrated with detailed diagrams. The information and the codes demonstrated in the book will equip readers with the knowledge to study hydraulic problems where transients are caused by pump starting, stopping and failure. Audience Engineering students and instructors studying hydraulics and computational fluid dynamics.

The Simulation Of Gas Flow Dynamics In Pipeline Networks

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Author : Peter W. Halbert
language : en
Publisher:
Release Date : 1965

The Simulation Of Gas Flow Dynamics In Pipeline Networks written by Peter W. Halbert and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1965 with Gas flow categories.

Modelling Of Transient Gas Liquid Flow And Pigging In Pipes

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Author :
language : en
Publisher:
Release Date : 1908

Modelling Of Transient Gas Liquid Flow And Pigging In Pipes written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1908 with categories.

More and more transient gas-liquid operations in pipes are being successfully applied in the oil and gas industry. Pigging in two-phase pipelines, to remove liquid accumulation or for cleaning purposes, is an important transient operation. Another important operation is the injection of ( - )-as to transport the accumulated liquid in the pipeline to process facilities. Analysis of such transient two-phase flow in a pipeline is necessary not only for designing the liquid and (Yas handling facilities, but also for safe operating procedure. In pipeline-fiser system such operations cause even more severe changes in flow conditions. A two-fluid model has been developed to determine the transient behaviour of fluids during these operations. T he derived one-dimensionasl et of equationsf or each flow pattern describet he flow of fluids in all regions. Semi-implicit finite difference schemes were used to solve the initial and boundary value problem for each phase of the process- gas/pig injection, gas shut-in, slug production and gas flow out of the system. An extensive experimental program has been carried out to acquire two-phase transient flow and pigging data on a 67 m long, 0.0525 m diameter, 9.9 m high pipeline-riser system. A computer based data acquisition system has been utilised to obtain rapidly changing and detailed information of the flow behaviour during the transient tests. The model results compare well with the experimental data for characteristics such as inlet pressure, hold-up and pig velocity.

One Dimensional Transient Flow In Pipelines Modelling And Simulation

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Author : Ezzeddine Haj Taïeb
language : en
Publisher: Bentham Science Publishers
Release Date : 2023-10-03

One Dimensional Transient Flow In Pipelines Modelling And Simulation written by Ezzeddine Haj Taïeb and has been published by Bentham Science Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-10-03 with categories.

This book presents numerical computational fluid dynamics (CFD) solutions for studying the effect of fluid-structure interaction (FSI) on evaluation of pressure waves in pipelines with cavitation. The authors develop a uniform one-dimensional model using coupled models. These models consider unsteady friction (UF), Poisson coupling, axial vibration (junction coupling), gas release and viscoelasticity. The authors consider two cases: elastic pipelines and viscoelastic (VE) pipelines. The book starts with a detailed literature review on the relevant methods for calculating transient fluid flow, followed by chapters that explain the mathematical development for calculations and the numerical steps for water hammer and transient cavitation. The concluding chapters present the results for the two pipeline cases. The book is presented in simple language intended for engineering students who want to understand CFD simulations for transient flow in pipelines. Equations are explained in simple steps for easy understanding, and concepts are illustrated with detailed diagrams. The information and the codes demonstrated in the book will equip readers with the knowledge to study hydraulic problems where transients are caused by pump starting, stopping and failure.

Gas Liquid Transient Flow In Horizontal Pipes

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Author :
language : en
Publisher:
Release Date : 1977

Gas Liquid Transient Flow In Horizontal Pipes written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with categories.

Recent studies (Taitel and Dukler, 1976) have provided a method for predicting conditions for flow regime transitions by modelling the actual physical processes taking place. This work was concerned only with steady flow conditions. Of considerable importance to the analysis of a Loss of Cooling Accident is the ability to predict the flow regime under conditions of transient flow. This report extends the steady state method of analysis to that of transient flow. It is shown that under transient conditions the transitions between flow patterns can occur at flow rates different than that which will take place if the changes in flow rate were to take place infinitely slowly. Furthermore, for rapid changes in flow rates from one set of conditions to another, flow regimes can appear which would not be observed if the change were made slowly. The theory for flow regime changes under transient flow conditions is developed and methods for predicting the onset of transition under transients presented. Experimental confirmation of the theory is described.

Modelling And Simulation Of Transient Gas Flow

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Author : Zulkefli Yaacob
language : en
Publisher:
Release Date : 1996

Modelling And Simulation Of Transient Gas Flow written by Zulkefli Yaacob and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with categories.

Modelling Of Transient Gas Liquid Flow And Pigging In Pipes

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Author : P. C. R. Lima
language : en
Publisher:
Release Date : 1999

Modelling Of Transient Gas Liquid Flow And Pigging In Pipes written by P. C. R. Lima and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with categories.

Modeling And Simulation For Steady State And Transient Pipe Flow Of Condensate Gas

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Author : Li Changjun
language : en
Publisher:
Release Date : 2011

Modeling And Simulation For Steady State And Transient Pipe Flow Of Condensate Gas written by Li Changjun and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.

Multiphase Flow Dynamics 3

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Author : Nikolay Ivanov Kolev
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-06-08

Multiphase Flow Dynamics 3 written by Nikolay Ivanov Kolev and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-06-08 with Technology & Engineering categories.

In order to allow the application of the theory from all the three volumes also to processes in combustion engines a systematic set of internally consistent state equations for diesel fuel gas and liquid valid in broad range of changing pressure and temperature are provided also in Volume 3. Erlangen, October 2006 Nikolay Ivanov Kolev Table of contents 1 Some basics of the single-phase boundary layer theory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1. 1 Flow over plates, velocity profiles, share forces, heat transfer. . . . . . . . . . . . . . . . . . . . 1 1. 1. 1 Laminar flow over the one site of a plane. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1. 1. 2 Turbulent flow parallel to plane. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1. 2 Steady state flow in pipes with circular cross sections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1. 2. 1 Hydraulic smooth wall surface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1. 2. 2 Transition region. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 1. 2. 3 Complete rough region. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 1. 2. 4 Heat transfer to fluid in a pipe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 1. 3 Transient flow in pipes with circular cross sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Nomenclature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 References. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 2 Introduction to turbulence of multi-phase flows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 2. 1 Basic ideas. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 2. 2 Isotropy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 2. 3 Scales, eddy viscosity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 2. 3. 1 Small scale turbulent motion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 2. 3. 2 Large scale turbulent motion, Kolmogorov-Pandtl expression. . . . . . . . . 42 2. 4 k-eps framework. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Nomenclature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 References. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 3 Sources for fine resolution outside the boundary layer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 3. 1 Bulk sources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 3. 1. 1 Deformation of the velocity field. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 3. 1. 2 Blowing and suction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .