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Oscillating Flow in Ducts of ArbitraryCross Section

Published online by Cambridge University Press:  04 July 2016

A. M. Abu-Sitta  and
D. G. Drake
A. M. Abu-Sitta
Affiliation:
Department of Mathematics, The University, Southampton
D. G. Drake
Affiliation:
Department of Mathematics, The University, Southampton
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Extract

The rectilinear flow of an incompressible viscous fluidalong a duct of uniform cross section due to anoscillating pressure gradient has been considered bya number of investigators. The duct of circularcross .section has been treated by Richardson andTyler and Sexl, the elliptic case by Khamrui, andthe rectangular case by Drake and Fan and Chao.Recently Jeng has discussed the importance of thistype of flow and has given a procedure forcalculating a numerical solution for a duct ofarbitrary cross-section. An interesting feature ofthese flows is that, at large frequencies when theflow is of boundary-layer type, the velocity at anyinstant has its maximum near the walls, the velocityovershooting its almost uniform distribution at thecentre of the duct.

Information

Type
Technical Notes
Information
The Aeronautical Journal , Volume 73 , Issue 706 , October 1969 , pp. 894 - 896
Copyright
Copyright © Royal Aeronautical Society 1969 

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References

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