Year: 2019
Author: Yiding Zhu
Advances in Applied Mathematics and Mechanics, Vol. 11 (2019), Iss. 3 : pp. 675–685
Abstract
Double-step interrogation schemes with decreasing window size are investigated. Particle image pairs are created by Monte Carlo methods based on a simulated hypersonic transitional boundary layer flow. Two types of initial-step interpolation, with and without non-slip conditions at the wall (so-called CSIN and CSI), are respectively investigated. It can be concluded that the non-slip condition is very important to the multi-grid interrogation scheme. CSIN has a good agreement with the preset results but CSI does not. The error level of CSI near the wall is nearly 5 times that of CSIN.
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Journal Article Details
Publisher Name: Global Science Press
Language: English
DOI: https://doi.org/10.4208/aamm.2018.s11
Advances in Applied Mathematics and Mechanics, Vol. 11 (2019), Iss. 3 : pp. 675–685
Published online: 2019-01
AMS Subject Headings: Global Science Press
Copyright: COPYRIGHT: © Global Science Press
Pages: 11
Keywords: PIV hypersonic boundary layer window-correlation algorithm.