An experimental investigation of unsteady thermal processes on a pre-cooled circular cylinder of porous material in the wind

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F14%3A00429256" target="_blank" >RIV/68378297:_____/14:00429256 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0017931014005171" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0017931014005171</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijheatmasstransfer.2014.06.045" target="_blank" >10.1016/j.ijheatmasstransfer.2014.06.045</a>

Jazyk výsledku

angličtina

Název v původním jazyce

An experimental investigation of unsteady thermal processes on a pre-cooled circular cylinder of porous material in the wind

Popis výsledku v původním jazyce

This paper presents a simple and reliable method for determining the phenomenon of unsteady thermal transfer mainly for elements of porous materials. The method is demonstrated on a concrete circular cylinder subjected to air cross-flow at a constant temperature. Based on the technique of specific volume heat capacity of the system, thermal processes for various Reynolds numbers up to Re = 111,000 are monitored and measured using embedded thermal probes and multi-point surface thermometry. By identifying the fitting approximation functions over the measurement points, the time evolutions of the temperature distribution over the cross-section are estimated, which form the basis for determining the total heat energy transferred from the free-stream to the cylinder. The overall heat transfer coefficient is evaluated at various temporal stages of the testing. The paper also shows transient conductive processes in the cylinder arising due to the forced heat transfer at various flow velociti

Název v anglickém jazyce

An experimental investigation of unsteady thermal processes on a pre-cooled circular cylinder of porous material in the wind

Popis výsledku anglicky

This paper presents a simple and reliable method for determining the phenomenon of unsteady thermal transfer mainly for elements of porous materials. The method is demonstrated on a concrete circular cylinder subjected to air cross-flow at a constant temperature. Based on the technique of specific volume heat capacity of the system, thermal processes for various Reynolds numbers up to Re = 111,000 are monitored and measured using embedded thermal probes and multi-point surface thermometry. By identifying the fitting approximation functions over the measurement points, the time evolutions of the temperature distribution over the cross-section are estimated, which form the basis for determining the total heat energy transferred from the free-stream to the cylinder. The overall heat transfer coefficient is evaluated at various temporal stages of the testing. The paper also shows transient conductive processes in the cylinder arising due to the forced heat transfer at various flow velociti

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JN - Stavebnictví

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

International Journal of Heat and Mass Transfer

ISSN

0017-9310

e-ISSN

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Svazek periodika

77

Číslo periodika v rámci svazku

October

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

906-914

Kód UT WoS článku

000340302400082

EID výsledku v databázi Scopus

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