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The Stability of a Two-dimensional Wall Jet

Published online by Cambridge University Press:  07 June 2016

Yutaka Tsuji ,
Yoshinobu Morikawa ,
Toshihiro Nagatani  and
Masaaki Sakou
Yutaka Tsuji
Affiliation:
Osaka University, Japan
Yoshinobu Morikawa
Affiliation:
Osaka University, Japan
Toshihiro Nagatani
Affiliation:
Kobe Steel Limited, Japan
Masaaki Sakou
Affiliation:
Kawasaki Heavy Industries Limited, Japan
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Summary

The stability of a two-dimensional wall jet was studied theoretically and experimentally. As a result of the linear stability calculation, it was found that one eigenmode is separated into two modes when the Reynolds number is large, and inside a neutral stable curve in the α, R-plane there exists another neutral curve enclosing a stable region. Experimental results of small disturbances were compared with calculated results; agreement between them was satisfactory. It was found, further, that subharmonics of a predominant disturbance velocity component appear in the non-linear region.

Type
Research Article
Information
Aeronautical Quarterly , Volume 28 , Issue 4 , November 1977 , pp. 235 - 246
Copyright
Copyright © Royal Aeronautical Society. 1977

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References

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