Modelling of Wall Roughness Effect on Turbulent Flows in Turbomachinery

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F09%3A00158735" target="_blank" >RIV/68407700:21220/09:00158735 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Modelling of Wall Roughness Effect on Turbulent Flows in Turbomachinery
Original language description
The work deals with numerical solution of incompressible and compressible turbulent flows over rough walls. The mathematical model is based on averaged Navier-Stokes equations with two-equation SST or EARSM turbulence models. The low-Re versions are usedand the wall roughness is modelled by means of the boundary condition for specific dissipation rate. The numerical solution is obtained by means of implicit upwind finite volume schemes. The presented cases are incompressible constant-pressure boundary-layer flow, incompressible flow over a ramp and compressible flow through a turbine cascade. The comparison of the numerical solution with experimental data shows that the adopted roughness model is well suitable for both used turbulence models.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Conference Proceedings
ISBN
978-963-420-986-7
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 9, 2009
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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