2007
DOI: 10.1063/1.2775977
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Numerical and experimental investigation of microchannel flows with rough surfaces

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Cited by 40 publications
(11 citation statements)
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“…Some previously computational and experimental results have been reported in [2,[26][27][28][29][30][31][32][33][34][35]. Therefore, it needs to get a better understanding of the effects of surface roughness on gas flow characteristics and heat transfer in microbearings.…”
mentioning
confidence: 97%
“…Some previously computational and experimental results have been reported in [2,[26][27][28][29][30][31][32][33][34][35]. Therefore, it needs to get a better understanding of the effects of surface roughness on gas flow characteristics and heat transfer in microbearings.…”
mentioning
confidence: 97%
“…However, in spite of the approximations in the model, it should be emphasized that the experimental and theoretical results agree well in the presented parameter domains. Therefore, the surface residual roughness model proposed above is more suitable for reproducing the observed roughness than other models presented in literature, e.g., triangular, square, and sinusoidal roughness model [4,17,18]. The roughness model of nozzle can be applied in CFD simulation.…”
Section: Roughness Model Of Nozzle and Validationmentioning
confidence: 99%
“…Some of them assume that rough elements are distributed periodically on a smooth surface. For 3D simulations, they used three dimensional rectangular prism elements or conical elements and expressed the roughness effect on the pressure drop across the channel as a relative channel height reduction depending on the roughness element geometry (Hu et al 2003;Rawool et al 2006;Baviere et al 2006;Croce et al 2007;Lilly et al 2007). However, for barely well-controlled surfaces, the asperities could be randomly distributed over the surface.…”
Section: Introductionmentioning
confidence: 99%