IUTAM Symposium Transsonicum IV pp 125-130 | Cite as
Perforated Plate Aerodynamics for Passive Shock Control
Abstract
Transpiration flow through perforated walls plays ever increasing role in aerodynamics due to a frequent application of the flow control by means of blowing or suction. An experimental study is presented here which allowed to determine a transpiration flow characteristic in a form of a simple function. It is very useful for modelling of such flows. Additionally a method of “aerodynamic porosity” determination was proposed which is much more reliable than geometrical description of the porosity. A theoretical analysis of the flow through a perforation hole was also carried out. The flow is considered as compressible and viscous. The gasdynamic analysis led us to a very similar result as obtained from experiment.
Key words
flow control transpiration flow perforated walls blowing and suctionPreview
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