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National Repository of Grey Literature 4 records found  Search took 0.00 seconds. 
Modelling of flow over one transversal rib in a channel with free surface
 Sládek, Aleš ; Příhoda, Jaromír
Numerical simulation of flow over one transversal rib on the bottom of a channel with free surface was carried out. The VOF (Volume-of-Fluid) method implemented in the commercial software FLUENT 6.3 was used for the solution of supercritical flow in a channel with free surface. The two-equation turbulence model according to Shih et al. was applied. Profiles of mean velocity and velocity fluctuation obtained by numerical simulation were compared with experimental data from PIV measurements. Secondary flow and the length of separated region behind the rib were compared with experimental data as well.
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Numerická simulace proudění ve 2D kanále s drsnými stěnami
 Stanislav, J. ; Sládek, Aleš ; Příhoda, Jaromír
Numerical simulation of the 2D channel flow with rough walls was carried out by means of the commercial code FLUENT 6.1. Results were compared with experimental data for rough wall modelled by abrasive paper with grit of 60. The effect of the computational grid on velocity profiles near the wall and on the friction coefficient was tested.
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Modelling of rough-wall flow in a straight channel
 Stanislav, J. ; Šafařík, P. ; Příhoda, Jaromír ; Sládek, Aleš
The contribution deals with numerical solution of three-dimensional incompressible flow in the straight channel with rough walls using the commercial code FLUENT 6.1. The effect of the computational grid is investigated using k-epsilon turbulence model modified for the rough wall. Used versions of grids are analysed in detail and results are compared with experimental data.
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Design of experimental test rig for the research of the flow in curved diffusers
 Sládek, Aleš ; Jonáš, Pavel
The design and construction are described of an experimental rig for the invesstigation of channell-flow and flow in curved diffusers.
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See also: similar author names
3 Sládek, A.
2 Sládek, Adam
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