Simulation of Separating Flows over a Backward-Facing Step

Елизарова, Т. Г.; Kalachinskaya, I. S.; Sheretov, Yu. V.; Шильников, Е. В.

doi:10.1023/b:comi.0000023527.37892.62

Cited by 7 publications

(2 citation statements)

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“…In contrast to the algorithms based on the Navier-Stokes equations, in the QGD algorithms, for the statement of conditions on the free subsonic boundaries, in a number of problems, it is possible to use simple boundary conditions analogous to the conditions for viscous incompressible fluid flows (see [65,163]). Such conditions for incoming and outgoing boundaries have the following form: on the input boundary, one assigns the components of the velocity, the density, and the gradient of the pressure:…”

Section: Nonreflecting Boundary Conditionsmentioning

confidence: 99%

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Quasi-Gas Dynamic Equations

Елизарова

2009

Computational Fluid and Solid Mechanics

174

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The use of general descriptive names, registered names, trademarks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. Cover design: deblik, BerlinPrinted on acid-free paper Springer is part of Springer Science+Business Media (www.springer.com) PrefaceThe monograph is devoted to modern mathematical models and numerical methods for solving gas-and fluid-dynamic problems based on them. Two interconnected mathematical models generalizing the Navier-Stokes system are presented; they differ from the Navier-Stokes system by additional dissipative terms with a small parameter as a coefficient. The new models are called the quasi-gas-dynamic and quasi-hydrodynamic equations. Based on these equations, effective finite-difference algorithms for calculating viscous nonstationary flows are constructed and examples of numerical computations are presented. The universality, the efficiency, and the exactness of the algorithms constructed are ensured by the fulfillment of integral conservation laws and the theorem on entropy balance for them.The book is a course of lectures and is intended for scientists and engineers who deal with constructing numerical algorithms and performing practical calculations of gas and fluid flows and also for students and postgraduate students who specialize in numerical gas and fluid dynamics. Moscow Tatiana Elizarova December 2008 v Contents

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Section: Nonreflecting Boundary Conditionsmentioning

confidence: 99%

“…Close results in comparing the separation zone structure with the experiment are obtained in modelling laminar and turbulent viscous incompressible flows after the backward step in the framework of Sheretov's quasi-hydrodynamic (QHD) equations [65].…”

Section: D32 Laminar-turbulent Transitionmentioning

confidence: 99%