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Old   February 26, 2010, 07:39
Default about local bump shock wave drag reduction
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Is there any ppl could advise me who was the first developed the bump shock reduction theory? And which literature gave a well present about this theory? Thank you very much!
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Old   February 26, 2010, 08:11
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If you imply weakening a shock wave with surface bumps, then one of the earliest papers concerned with the problem was that by Tai et al., AIAA Paper 87-1239, 1987. A brief review of developments performed before 2002 is available in Section 4.3.2 of the book "Boundary Value Problems..." by A. Kuzmin.
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Old   February 26, 2010, 11:20
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Quote:
Originally Posted by Vladik View Post
If you imply weakening a shock wave with surface bumps, then one of the earliest papers concerned with the problem was that by Tai et al., AIAA Paper 87-1239, 1987. A brief review of developments performed before 2002 is available in Section 4.3.2 of the book "Boundary Value Problems..." by A. Kuzmin.
Thank you very much for ur kindly reply. Unfortunately, I cannot download those papers due to the my universities' poor library. In Tai's paper, did he propose the single hump to weakening a shock or double-bump? Thank you very much!
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Old   February 26, 2010, 12:16
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Tai et al. proposed a single bump and used test facilities for research. A sort of double bump on an airfoil was examined with CFD by Sobieczky & Seebas in Ann. Rev. Fluid Mechanics, Vol. 16. pp. 337-363, 1984.
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Old   February 26, 2010, 13:02
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Quote:
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Tai et al. proposed a single bump and used test facilities for research. A sort of double bump on an airfoil was examined with CFD by Sobieczky & Seebas in Ann. Rev. Fluid Mechanics, Vol. 16. pp. 337-363, 1984.
Ok, I got it. Thanks very much for your help.
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Old   February 26, 2010, 13:04
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See these two links

http://jucri.jyu.fi/?q=testcase/4
http://jucri.jyu.fi/?q=testcase/34

Look at the submitted results of Ning Qin. There is some review in his slides.
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