Instytut Podstawowych Problemów Techniki
Polskiej Akademii Nauk


T. Lewandowski

Ostatnie publikacje
1.  Lewandowski T., Jebauer S., Czerwińska J., Doerffer P., Entrance effects in microchannel gas flow, Journal of Thermal Science, ISSN: 1003-2169, DOI: 10.1007/s11630-009-0345-5, Vol.18, No.4, pp.345-352, 2009

Motivation of this work has its origin in the boundary layer control for aeronautics and turbomachinery. For that purpose boundary layer can be modified by perforated plates with holes of specific sizes. The questions which rise in such configuration are related to the existence of optimal size of the holes and the influence of microscale phenomena on the global flow patterns. This paper concentrates on the issue of the entrance effects on the microchannel flow. It is shown that mass flow rate is only insignificantly influenced by slip effects. Global parameters such as pressure difference and geometrical shape in more pronounced way alter flow behavior. In this paper we concentrate on the numerical investigation of the microchannel flow for Kn < 0.01 and Re < 500. The channel length is finite. Hence, entrance and outlet effects on microchannel flow can be studied.

Słowa kluczowe:
perforated plates, microchannels, gas flow simulations

Afiliacje autorów:
Lewandowski T. - inna afiliacja
Jebauer S. - IPPT PAN
Czerwińska J. - IPPT PAN
Doerffer P. - Institute of Fluid Flow Machinery, Polish Academy of Sciences (PL)

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