Numerical Modelling of Turbulent Flow over Three Dimensional Backward Facing Step
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F06%3A00122060" target="_blank" >RIV/68407700:21220/06:00122060 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Numerical Modelling of Turbulent Flow over Three Dimensional Backward Facing Step
Original language description
The work deals with numerical modelling of 3D steady turbulent flow over backward facing step in a channel of rectangular cross-section. Two geometries with different boundary conditions and Reynolds numbers are computed. The mathematical model is basedon Reynolds averaged Navier-Stokes equations for incompressible fluid. The turbulence models are eddy viscosity (SST) and explicit algebraic Reynolds stress model (EARSM). The Navier-Stokes equations are solved by an implicit artificial compressibility method with higher order upwind dicretization for convective term. The influence of constitutive relation for Reynolds stress is observed. The differences caused by turbulence modeling are apparent already in the inlet straight channel in the form of corner secondary vortices captured only by EARSM model. The vortical structures downstream of the step were observed as well. The results are compared with measurements.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
BA - General mathematics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA201%2F05%2F0005" target="_blank" >GA201/05/0005: Mathematical theory and numerical simulation of problems of fluid mechanics</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2006
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
CMFF'06 Conference Proceedings
ISBN
963-420-872-X
ISSN
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e-ISSN
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Number of pages
8
Pages from-to
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Publisher name
Budapest University of Technology and Economics, Department of Fluid Mechanics
Place of publication
Budapest
Event location
Budapest
Event date
Sep 6, 2006
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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