On the Double-Step PIV Algorithm of Wall-Bounded Flows

被引：0

作者：

Zhu, Yiding ^{[1
]}

机构：

[1] Peking Univ, State Key Lab Turbulence & Complex Syst, Coll Engn, Beijing 100871, Peoples R China

来源：

ADVANCES IN APPLIED MATHEMATICS AND MECHANICS | 2019年 / 11卷 / 03期

基金：

中国国家自然科学基金;

关键词：

PIV; hypersonic boundary layer; window-correlation algorithm; VORTEX-SURFACE FIELDS; TAYLOR-GREEN; LAYER; THIN; IMPROVEMENT; TRANSITION; ZIGZAG;

D O I：

10.4208/aamm.2018.s11

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

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.

引用

页码：675 / 685

页数：11

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