Effective source distribution in a choked screech jet

Title

Effective source distribution in a choked screech jet

 Author

Lee, B.H.K.
Westley, R.

Institution

National Research Council Canada, National Aerospace Establishment, High Speed Aerodynamics Section

 Date

1971-05-31

 Abstract

Using experimental measurements of the sound pressure and phase in the near field of a choked screech jet, a method is proposed for computing the effective source positions, their strengths and phases. Two models are considered. The first assumes a distribution of point sourees along the jet axis and the second assumes ring sources along the jet boundary instead. A technique of minimization due to Powell is used and a solution is obtained wh en the sum of squares reaches a minimum. Results for a choked jet at a screech frequency of 3170 cis are presented.

 To reference this document use:

http://resolver.tudelft.nl/uuid:79d27403-2a99-459b-87b3-6cb589277975

 Publisher

National Research Council Canada

 Access restriction

Campus only

 Source

National Research Council Aeronautical Report LR 548

 Part of collection

Aerospace Engineering Reports

 Document type

report

 Rights

(c)1971 National Research Council Canada
Files
PDF LR-548.pdf 7.42 MB
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