Planar Doppler velocimetry: Three-component velocimetry in supersonic jets

被引：14
|
作者：
Clancy, PS [1 ]
Samimy, M [1 ]
Erskine, WR [1 ]
机构：
[1] Ohio State Univ, Dept Mech Engn, Columbus, OH 43210 USA
来源：
AIAA JOURNAL | 1999年 / 37卷 / 06期
关键词：
D O I：
10.2514/2.798
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
A three-component planar Doppler velocimetry system was developed and used to make mean and instantaneous velocity measurements in a Mach 2 axisymmetric freejet. The mean measurements were in good agreement with reference laser Doppler velocimetry measurements taken in the same flowfield, whereas the instantaneous measurements were in fair agreement and indicated areas that required improvement. A detailed uncertainty analysis provided further insight into the performance of the planar Doppler velocimetry system. The calibration of the splitter/recombiner imaging system using flatfield images was improved. Speckle image noise was found to be the largest source of error affecting the turbulence results, and so digital filtering techniques were investigated and employed.
引用
收藏
页码：700 / 707
页数：8
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