POSSIBILITIES OF COMPUTER MODELLING OF FLOW OVER A CIRCULAR CYLINDER

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27690%2F07%3A00016673" target="_blank" >RIV/61989100:27690/07:00016673 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

čeština

Original language name

POSSIBILITIES OF COMPUTER MODELLING OF FLOW OVER A CIRCULAR CYLINDER

Original language description

Even with present computational power of computers the investigation of effects, which are proceeding at flow over cylinder, sphere, etc. is very difficult. The computation of flow pattern of flow over a cylinder for chosen Reynolds numbers is performedin FLUENT and the influence of model of turbulence on time response of velocity field is studied. Fields of velocity computed by means of various models of turbulence Large Eddy Simulation (LES) model and k-&#969; Shear-Stress Transport (SST) model are qualitatively different. Carrying out numerical simulations with higher flow velocity essentially increases time of calculation and have higher requests on computational power, because for growing size of Reynolds number mesh must be refined.

Czech name

POSSIBILITIES OF COMPUTER MODELLING OF FLOW OVER A CIRCULAR CYLINDER

Czech description

Even with present computational power of computers the investigation of effects, which are proceeding at flow over cylinder, sphere, etc. is very difficult. The computation of flow pattern of flow over a cylinder for chosen Reynolds numbers is performedin FLUENT and the influence of model of turbulence on time response of velocity field is studied. Fields of velocity computed by means of various models of turbulence Large Eddy Simulation (LES) model and k-&#969; Shear-Stress Transport (SST) model are qualitatively different. Carrying out numerical simulations with higher flow velocity essentially increases time of calculation and have higher requests on computational power, because for growing size of Reynolds number mesh must be refined.

Type

D - Article in proceedings

CEP classification

BK - Liquid mechanics

OECD FORD branch

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Project

<a href="/en/project/GA101%2F06%2F0063" target="_blank" >GA101/06/0063: New computer approaches to investigation of nonlinear and chaotic vibration of rotors and drives due to their interaction with the neighbourhood</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2007

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Aplikovaná mechanika 2007

ISBN

978-80-248-1389-9

ISSN

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e-ISSN

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Number of pages

16

Pages from-to

1-16

Publisher name

Ediční středisko VŠB-TU Ostrava

Place of publication

Ostrava

Event location

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Event date

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Type of event by nationality

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UT code for WoS article

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