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Mathematical Modelling and Experimental Investigation of Gas Flow in Minichannels and Microchannels
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SYSNO ASEP 0345923 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Mathematical Modelling and Experimental Investigation of Gas Flow in Minichannels and Microchannels Author(s) Vimmr, J. (CZ)
Klášterka, H. (CZ)
Hajžman, M. (CZ)
Luxa, Martin (UT-L) RID, ORCID
Dvořák, Rudolf (UT-L) RIDSource Title Journal of Thermal Science. - : Springer - ISSN 1003-2169
Roč. 19, č. 4 (2010), s. 289-294Number of pages 6 s. Language eng - English Country US - United States Keywords clearance gap ; transonic flow ; microflow development ; compressible Navier-Stokes solver Subject RIV BK - Fluid Dynamics R&D Projects GA101/08/0623 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20760514 - UT-L (2005-2011) UT WOS 000279656900001 DOI https://doi.org/10.1007/s11630-010-0385-x Annotation 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 with the 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. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2011
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