Visualization of Shear Stress With Micro Imaging Chip and Discrete Wavelet Transform-Reference-Cited by-同舟云学术

Visualization of Shear Stress With Micro Imaging Chip and Discrete Wavelet Transform

Published:2002-12-01 Issue:4 Volume:124 Page:1018-1024
ISSN:0098-2202
Container-title:Journal of Fluids Engineering
language:en
Short-container-title:

Author:

Kimura Motoaki¹,Takei Masahiro¹,Ho Chih-Ming²,Saito Yoshifuru³,Horii Kiyoshi⁴

Affiliation:

1. Department of Mechanical Engineering, College of Science and Technology, Nihon University, 8 Kanda Surugadai 1-Chome, Chiyoda-ku, Tokyo 101-8308, Japan

2. Mechanical and Aerospace Engineering Department, University of California, Los Angeles, CA 90095

3. Department of Electrical and Electronic Engineering, College of Technology, Hosei University, 3-7-2 Kajino, Koganei, Tokyo 184-8584, Japan

4. Shirayuri College, 1-25 Midorigaoka, Chiyoda-ku, Tokyo 101-8308, Japan

Abstract

The two-dimensional low-speed structure of a turbulent boundary layer has been clearly visualized by a combination of a shear stress sensor using micro electro mechanical systems and the discrete wavelet transform. The application of two-dimensional discrete wavelet transforms to the visualization of wall shear stress data obtained using the micro shear stress imaging chip is described. The experiment was carried out under various Reynolds number conditions. It is shown that it is possible to visualize the low-speed streak structure as contours of two-dimensional wavelet level corresponding to spanwise wave number as a function of Reynolds number.

Publisher

ASME International

Subject

Mechanical Engineering

Link

http://asmedigitalcollection.asme.org/fluidsengineering/article-pdf/124/4/1018/5901172/1018_1.pdf

Reference25 articles.

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