National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
On The Structure Of Turbulent Boundary Layer On Smooth And Rough Walls
Uruba, Václav ; Hladík, Ondřej
The turbulent boundary layer structure on the smooth and rough walls has been studied experimentally using PIV technique. The hairpin vortices have been detected. Topology and typical size of those structures substantially differ in the cases in question.
Experimental simulation of inviscid and viscous turbulent transonic flows
Trefilík, Jiří ; Kozel, K. ; Příhoda, Jaromír
The work deals with the development of numerical methods for simulation of transonic turbulent flows through the DCA 8% cascade and over the 18% thick circular arc biconvex airfoil. Results of numerical experiments modelling the viscous and inviscid flows in the cascade with the inlet Mach numbers M = 0.87 and 0.96 and over the airfoil with M =0.775 are compared and discussed. The two-equation k-omega model and the algebraic Baldwin-Lomax model were employed for turbulence modelling and their numerical results were compared.

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