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Numerická simulace a vizualizace vytváření syntetizovaného proudu
Trávníček, Zdeněk ; Vogel, Jiří ; Vít, T.
The paper presents the results of numerical and experimental investigations of a synthetic jet generation. The experiments were performed in air by means of flow visualization and hot-wire anemometry. The subsequent numerical simulation was performed using the commercial code FLUENT. The geometry, boundary conditions, and material properties of the numerical simulation were defined according to the real experimental situation.
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Numerical Solution of a Fre Shear Layer Flow
Hyhlík, T. ; Uruba, Václav
The non-stationary turbulent flow in a free shear layer behind an infinite back-facing step is modeled using commercial code FLUENT. The URANS equations with the Spalart – Allmaras one-equation turbulence model are applied. The results of numerical simulation are subjected to analysis and compared with those from experiment and literature. Non-stationary structure is characterized by Strouhal number, qualitative agreement has been found.
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Microturbines and Microfluid Dynamics
Dvořák, Rudolf
This is a state-of-the art survey of microfluid dynamics with applications in microturbines, and assessment of the main problems characteristic for this field. Special attention is paid to the friction factor in microflows.
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