STUDY OF HEAT TRANSFER IN BACKWARD-FACING STEP FLOW USING PARTIALLY-AVERAGED NAVIER-STOKES (PANS) TURBULENCE MODELING METHOD

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F19%3A00007746" target="_blank" >RIV/46747885:24210/19:00007746 - isvavai.cz</a>

Výsledek na webu

<a href="http://www2.it.cas.cz/fm2015/im/admin/showfile/data/my/Papers/2019/18-TPFM2019.pdf" target="_blank" >http://www2.it.cas.cz/fm2015/im/admin/showfile/data/my/Papers/2019/18-TPFM2019.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14311/TPFM.2019.018" target="_blank" >10.14311/TPFM.2019.018</a>

Jazyk výsledku

angličtina

Název v původním jazyce

STUDY OF HEAT TRANSFER IN BACKWARD-FACING STEP FLOW USING PARTIALLY-AVERAGED NAVIER-STOKES (PANS) TURBULENCE MODELING METHOD

Popis výsledku v původním jazyce

Backward facing step flow is one of the suitable cases for validation of a new turbulence model. The present study deals with numerical simulations of heat transfer from wall past the backward facing step. Numerical simulations are carried out using the Partially-Averaged Navier-Stokes method. The study was performed at Reynolds number Re-H = 28000 that is based on the height of the step. An influence of physical resolution was studied using various ratios f(k) of unresolved to total resolved turbulent kinetic energy. Results from numerical simulations were compared with experimental data performed at the same Re-H. The reattachment length varied with the fk ratio in a same way as the minimal value of the Skin friction coefficient and position of the peak of the Stanton number.

Název v anglickém jazyce

STUDY OF HEAT TRANSFER IN BACKWARD-FACING STEP FLOW USING PARTIALLY-AVERAGED NAVIER-STOKES (PANS) TURBULENCE MODELING METHOD

Popis výsledku anglicky

Backward facing step flow is one of the suitable cases for validation of a new turbulence model. The present study deals with numerical simulations of heat transfer from wall past the backward facing step. Numerical simulations are carried out using the Partially-Averaged Navier-Stokes method. The study was performed at Reynolds number Re-H = 28000 that is based on the height of the step. An influence of physical resolution was studied using various ratios f(k) of unresolved to total resolved turbulent kinetic energy. Results from numerical simulations were compared with experimental data performed at the same Re-H. The reattachment length varied with the fk ratio in a same way as the minimal value of the Skin friction coefficient and position of the peak of the Stanton number.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20303 - Thermodynamics

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

Topical Problems of Fluid Mechanics

ISBN

978-80-87012-69-7

ISSN

2336-5781

e-ISSN

—

Počet stran výsledku

8

Strana od-do

123-130

Název nakladatele

ACAD SCI CZECH REPUBLIC, INST THERMOMECHANICS

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

1. 1. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000519337800018