国际流体力学研究期刊
每年出版 6 期
ISSN 打印: 2152-5102
ISSN 在线: 2152-5110
IF:
1.1
5-Year IF:
1.3
Eigenfactor:
0.0002
JCI:
0.33
SJR:
0.256
SNIP:
0.49
CiteScore™::
2.4
H-Index:
23
Indexed in
Flow Field Measurement Method by Means of Time-Averaged Contrast of Images
卷 25,
册 4-6, 1998,
pp. 763-769
DOI: 10.1615/InterJFluidMechRes.v25.i4-6.280
摘要
A new image measurement method for obtaining time-mean velocity field is proposed. The so-called time-averaged contrast is a statistical parameter of image data. Its characteristics are examined in detail with a simple mathematical model for particle images. It is found that the variance of image data gives the time-averaged contrast and the velocity of the particles in the case that the averaged intensity of the image data is constant in time. Numerical simulation shows the possibility of practical measurement.
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