000001952 001__ 1952
000001952 005__ 20141118153448.0
000001952 04107 $$acze
000001952 046__ $$k2011-05-09
000001952 100__ $$aPříhoda, J.
000001952 24500 $$aMODELLING OF SUPERCRITICAL TURBULENT FLOW OVER AN INCLINED BACKWARD-FACING STEP IN A OPEN CHANNEL 

000001952 24630 $$n17.$$pEngineering Mechanics 2011
000001952 260__ $$bInstitute of Thermomechanics AS CR, v.v.i., Brno
000001952 506__ $$arestricted
000001952 520__ $$2eng$$aThe contribution deals with the experimental and numerical modelling of supercritical turbulent flow in an open channel with an inclined backward-facing step on its bottom. The step with the height h = 100 mm and the inclination angle α = 20o was placed in the water channel of the cross-section 200x200 mm. Experiments were carried out by means of the PIV and LDA measuring techniques. Numerical simulations were executed by the commercial software ANSYS CFX 12.0. Numerical results obtained by the two-equation SST model and the EARSM model completed by transport equations for turbulent energy and specific dissipation rate were compared with experimental data. The modelling was concentrated particularly on the flow pattern near the step including the possible flow separation and the corresponding changes of free surface. The agreement of numerical results obtained by means of the EARSM model with experimental data is quite good.

000001952 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000001952 653__ $$aBackward-facing inclined step, free-surface supercritical flow.

000001952 7112_ $$aEngineering Mechanics 2011$$cSvratka (CZ)$$d2011-05-09 / 2011-05-12$$gEM2011
000001952 720__ $$aPříhoda, J.$$iSedlář, M.$$iŠulc, J.$$iZubík, P.
000001952 8560_ $$ffischerc@itam.cas.cz
000001952 8564_ $$s858914$$uhttps://invenio.itam.cas.cz/record/1952/files/p114.pdf$$y
             Original version of the author's contribution as presented on book, page 495.
            
000001952 962__ $$r1835
000001952 980__ $$aPAPER