Computational Fluid Dynamics of Trunklines Systems

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Автор: V.E. Seleznev, S.N. Pryalov

Название: Computational Fluid Dynamics of Trunklines Systems: Methods for Constructing Flow Models in Branched Trunklines and Open Channels

Издательство: KRASAND

Год: 2014

Формат: PDF, DJVU

Размер: 112 Мб, 25 Мб

Язык: English

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The monography offers a detailed analysis of the methods for constructing mathematical models

of transient non-isothermal flows of gas mixtures, multicomponent fluids, and gas–liquid fluids

through systems of long branched pipelines including annular sections. To enhance the presentation

clarity, the proposed methods are extended to the modeling of flows of heat-conducting multicomponent

liquids through long branched open channels.

Together with the model construction methods, the strategies of their numerical analysis are discussed

in detail, with the use of various classes of finite-difference schemes, including completely

conservative spline schemes of high approximation order. Special emphasis is placed on expounding

the method of Lagrangian particles as applied to the analysis of heat-conducting multicomponent

liquids transmitted through open channels and to the study of complex flows in linear and annular

pipeline networks.

The monography offers a detailed analysis of the methods for constructing mathematical models

of transient non-isothermal flows of gas mixtures, multicomponent fluids, and gas–liquid fluids

through systems of long branched pipelines including annular sections. To enhance the presentation

clarity, the proposed methods are extended to the modeling of flows of heat-conducting multicomponent

liquids through long branched open channels.

Together with the model construction methods, the strategies of their numerical analysis are discussed

in detail, with the use of various classes of finite-difference schemes, including completely

conservative spline schemes of high approximation order. Special emphasis is placed on expounding

the method of Lagrangian particles as applied to the analysis of heat-conducting multicomponent

liquids transmitted through open channels and to the study of complex flows in linear and annular

pipeline networks.

The methods for constructing mathematical models for functioning of trunklines and gas distribution

systems operated in gas industry are also discussed in detail. They involve the strategies for

prognostic optimization of costs covering the full range of natural gas transmission modes, failurepreventing

algorithms (e. g., in case of pipeline ruptures or surge in compressor house networks), and

new methods for identifying sources of unrecovery and automated tuning of model parameters to the

characteristics of actual pipeline networks.

All the described methods for constructing mathematical models and their analysis have been

developed within a unique modeling framework, which considerably simplifies their study and practical

application. During the last decade, the reliability and efficiency of these methods have been confirmed

in practice, in solving industrial problems.

The monography can be useful to researchers, postgraduate students, and educators dealing with

mathematical modeling, software application development, and working on computational and analytic

problems for the needs of pipeline transmission, engineering industries, power industry, and

environmental organizations. The presentation is accessible to undergraduate students of engineering.