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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Numerical and Experimental Investigation of Compressible Viscous Fluid Flow in Minichannels
 Prausová, H. ; Bublík, O. ; Vimmr, J. ; Hála, Jindřich ; Luxa, Martin
The study is focused on the value of critical Reynolds number Rec and also on suitable approaches to the measuring and modelling of the compressible viscous fluid flow in narrow channels. The results of numerical simulations performed using an in-house code based on the discontinuous Galerkin finite element method are compared with experimental data. The chosen approaches and numerical methods prove themselves to be suitable for investigation of the compressible flow in narrow channels and can be used in future research in this area.
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Application of numerical inverse Laplace transform to elastodynamic problems
 Adámek, V. ; Valeš, František ; Červ, Jan
Laplace transform represents one of the most used transforms in time domain. There exist two possible approaches to its inversion, analytical and numerical. The first method is based on the exact evaluation of the inverse integral. This is usually done by the help of Cauchy´s residue theorem. The substance of the second method lies in the numerical evaluation of the inverse integral. This numerical approach is faster than an analytical solution and it can be also applied to more complicated problems where e.g. the existence of branch points makes the inverse process, based on the analytic techniques, much more complicated.
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