Heat flow through a thin cooled pipe filled with micropolar fluid

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F15%3A00226522" target="_blank" >RIV/68407700:21110/15:00226522 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.15632/jtam-pl.53.3.569" target="_blank" >http://dx.doi.org/10.15632/jtam-pl.53.3.569</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.15632/jtam-pl.53.3.569" target="_blank" >10.15632/jtam-pl.53.3.569</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Heat flow through a thin cooled pipe filled with micropolar fluid

Popis výsledku v původním jazyce

In this Note a non-isothermal flow of a micropolar fluid in a thin pipe with circular cross-section is considered. The fluid in the pipe is cooled by the exterior medium and the heat exchange on the lateral part of the boundary is described by the Newton's cooling condition. Assuming that hydrodynamic part of the system is provided, we seek for the micropolar effects on the heat flow using standard perturbation technique. Different asymptotic models are deduced depending on the magnitude of the Reynoldsnumber with respect to the pipe's thickness. The critical case is identified and the explicit approximation for the fluid temperature is built improving the known result for the classical Newtonian flow as well. The obtained results are illustrated by some numerical simulations.

Název v anglickém jazyce

Heat flow through a thin cooled pipe filled with micropolar fluid

Popis výsledku anglicky

In this Note a non-isothermal flow of a micropolar fluid in a thin pipe with circular cross-section is considered. The fluid in the pipe is cooled by the exterior medium and the heat exchange on the lateral part of the boundary is described by the Newton's cooling condition. Assuming that hydrodynamic part of the system is provided, we seek for the micropolar effects on the heat flow using standard perturbation technique. Different asymptotic models are deduced depending on the magnitude of the Reynoldsnumber with respect to the pipe's thickness. The critical case is identified and the explicit approximation for the fluid temperature is built improving the known result for the classical Newtonian flow as well. The obtained results are illustrated by some numerical simulations.

Druh

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

CEP obor

BA - Obecná matematika

OECD FORD obor

—

Projekt

<a href="/cs/project/GA13-18652S" target="_blank" >GA13-18652S: Numerické modelování poškození a transportních procesů v kvazikřehkých materiálech</a><br>

Návaznosti

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

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Journal of Theoretical and Applied Mechanics

ISSN

1429-2955

e-ISSN

—

Svazek periodika

53

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

11

Strana od-do

569-579

Kód UT WoS článku

000361265200006

EID výsledku v databázi Scopus

2-s2.0-84938565839