NDLI: Automatic Measurement System for Shock Wave Parameters Based on Image Analysis

Content Provider	IEEE Xplore Digital Library
Author	Cunbao Ma Chao Zhang Xiao Zhangl Lei Zhang
Copyright Year	2006
Description	Author affiliation: Sch. of Aeronaut., Northwestern Polytech. Univ., Xi'an (Cunbao Ma; Chao Zhang; Xiao Zhangl; Lei Zhang)
Abstract	The traditional manual method for measuring shock wave parameters is inefficient and poor robustness, and neglects the dynamic character of the flow field. In this paper, an automatic measurement system measuring shock wave parameters is designed for SB301 wind tunnel platform according to image analysis, and the techniques and measuring procedures of the method are described. In this measuring system, an image edge detection method combining Sobel operator and flexible morphology is proposed, accordingly overcome the shortcoming of flexible morphology method losing partial edge, and the anti-noise ability is better than conventional gradient detection operator; the fast moment algorithm based on Delta is improved, consequently eliminates the limitation of Delta method only adapting to horizontal continuous image. The results for measuring shock wave parameters in plane cascade flow field show that the method is highly active and actuate one and can satisfy the precision and robustness requirement in blade profile design
Starting Page	9804
Ending Page	9808
File Size	409506
Page Count	5
File Format	PDF
ISBN	1424403324
DOI	10.1109/WCICA.2006.1713910
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-06-21
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Shock waves Image analysis Image edge detection Morphology Fluid flow measurement Robustness Chaos Electric variables measurement Aerodynamics Blades plane cascade shock wave image analysis flexible morphology edge detection
Content Type	Text
Resource Type	Article

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