ANALYSIS OF TURBULENT STRUCTURE OF AN IMPULSIVELY STARTED JET BY APPLYING IMAGE PROCESSING.

被引：5
|
作者：
Shirakashi, Masataka [1 ]
Kawase, Hiroyuki [1 ]
Wakiya, Shoichi [1 ]
机构：
[1] Technological Univ of Nagaoka, Nagaoka, Jpn, Technological Univ of Nagaoka, Nagaoka, Jpn
来源：
Bulletin of the JSME | 1986年 / 29卷 / 257期
关键词：
FLUID MECHANICS - IMAGE PROCESSING - Image Analysis;
D O I：
10.1299/jsme1958.29.3772
中图分类号：
学科分类号：
摘要：
An image processing method for the analysis of a turbulent structure was devised. It was applied to an impulsively started axisymmetrical jet growing into an otherwise quiescent fluid. The development of the statistical average contour and the growing behavior of the jet were clarified. Simultaneous measurements of the concentration and the velocity at a fixed position were carried out and the transient phenomenon at the position was made clear. It is confirmed that the image processing method developed here is effective for the analysis of the spatial structure of turbulence in an unsteady flow field.
引用
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页码：3772 / 3778
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