Mathematical modelling and experimental investigation of gas flow in minichannels and microchannels

Kód výsledku v IS VaVaI

RIV/49777513:23520/10:00503708 - isvavai.cz

Nalezeny alternativní kódy

RIV/61388998:_____/10:00345923 RIV/49777513:23210/10:00503708

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Mathematical modelling and experimental investigation of gas flow in minichannels and microchannels

Popis výsledku v původním jazyce

The first part of this study is focused on the numerical modelling and experimental investigation of transonic flow through a 2D model of the male rotor-housing gap in a dry screw compressor. Numerical simulations of the clearance flow are performed withthe help of the in-house compressible Navier-Stokes solver. Experimental measurements based on the Schlieren method in Toepler configuration are carried out. The objective of the second part of the study is to derive the analytical solution of gas microflow development in a gap between two parallel plates. The microflow is assumed to be laminar, incompressible and the velocity slip boundary conditions are considered at the walls. The constant velocity profile is prescribed at the inlet. For the mathematical description of the problem, the Oseen equation is used. The analytical results are compared with the numerical ones obtained using the developed incompressible Navier-Stokes solver including the slip flow boundary conditions.

Název v anglickém jazyce

Mathematical modelling and experimental investigation of gas flow in minichannels and microchannels

Popis výsledku anglicky

The first part of this study is focused on the numerical modelling and experimental investigation of transonic flow through a 2D model of the male rotor-housing gap in a dry screw compressor. Numerical simulations of the clearance flow are performed withthe help of the in-house compressible Navier-Stokes solver. Experimental measurements based on the Schlieren method in Toepler configuration are carried out. The objective of the second part of the study is to derive the analytical solution of gas microflow development in a gap between two parallel plates. The microflow is assumed to be laminar, incompressible and the velocity slip boundary conditions are considered at the walls. The constant velocity profile is prescribed at the inlet. For the mathematical description of the problem, the Oseen equation is used. The analytical results are compared with the numerical ones obtained using the developed incompressible Navier-Stokes solver including the slip flow boundary conditions.

Druh

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

CEP obor

BK - Mechanika tekutin

OECD FORD obor

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Projekt

GA101/08/0623: Teoretický a experimentální výzkum transonického proudění v úzkých mezerách a mikrokanálech

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název periodika

Journal of Thermal Science

ISSN

1003-2169

e-ISSN

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Svazek periodika

19

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CN - Čínská lidová republika

Počet stran výsledku

6

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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