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Statements

Subject Item
n2:RIV%2F61388998%3A_____%2F09%3A00329969%21RIV10-AV0-61388998
rdf:type
skos:Concept n21:Vysledek
dcterms: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 used and 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 with flow separation and compressible flow through a turbine blade cascade. The comparison of the numerical solution with experimental data shows that the adopted roughness model is well suitable for both used turbulence models. 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 used and 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 with flow separation and compressible flow through a turbine blade cascade. The comparison of the numerical solution with experimental data shows that the adopted roughness model is well suitable for both used turbulence models.
dcterms:title
Modelling of wall roughness effect on turbulent flows in turbomachinery Modelling of wall roughness effect on turbulent flows in turbomachinery
skos:prefLabel
Modelling of wall roughness effect on turbulent flows in turbomachinery Modelling of wall roughness effect on turbulent flows in turbomachinery
skos:notation
RIV/61388998:_____/09:00329969!RIV10-AV0-61388998
n3:aktivita
n18:Z n18:P
n3:aktivity
P(GA103/09/0977), Z(AV0Z20760514)
n3:dodaniDat
n8:2010
n3:domaciTvurceVysledku
n15:3433226 n15:4982541
n3:druhVysledku
n11:D
n3:duvernostUdaju
n17:S
n3:entitaPredkladatele
n10:predkladatel
n3:idSjednocenehoVysledku
326880
n3:idVysledku
RIV/61388998:_____/09:00329969
n3:jazykVysledku
n6:eng
n3:klicovaSlova
turbulence modelling; wall roughness; flow separation
n3:klicoveSlovo
n7:wall%20roughness n7:turbulence%20modelling n7:flow%20separation
n3:kontrolniKodProRIV
[177426495C32]
n3:mistoKonaniAkce
Budapest
n3:mistoVydani
Budapest
n3:nazevZdroje
Conference on Modelling Fluid Flow Proceedings
n3:obor
n12:BK
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
3
n3:projekt
n14:GA103%2F09%2F0977
n3:rokUplatneniVysledku
n8:2009
n3:tvurceVysledku
Kozel, K. Příhoda, Jaromír Louda, Petr
n3:typAkce
n4:WRD
n3:zahajeniAkce
2009-09-09+02:00
n3:zamer
n16:AV0Z20760514
s:numberOfPages
8
n19:hasPublisher
Dept. Fluid Mechanics, Budapest University of Technology and Economics, Budapest
n9:isbn
978-963-420-985-0