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National Repository of Grey Literature 1 records found  Search took 0.02 seconds. 
Numerické modelování nestacionárního proudění viskozní tekutiny ve 2D kanále pro nízká Machova čísla
 Punčochářová, Petra ; Kozel, Karel ; Fürst, J. ; Horáček, Jaromír
The work presents an unsteady viscous flow for low upstream Mach number (M =0.012) in a 2D channel. Unsteady flow is caused by a moving part of the channel wall as a given function of time. The problem is described by the system of Navier-Stokes equations for compressible leminar flows. It is numerically solved by the explicit central finite volume version of MacCormack scheme on a grid of quadrilateral cells. Moved grid of quadrilateral cells is considered in the form of conservation laws using Arbitrary Lagrangian-Eulerian method. Physically the flow in the symmetrical channel can present some very simple model of flow in a human vocal tract. The aim is to compare two different cases of this problem of the flowfield.
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