Abstract
Aviscous-inviscidinteractionmethodolcgy based on a zonal description of the flowfield is developed as a means of predicting the perfonnanceoftwo-dimensionalthrustacqmnw ejectors. An inviscid zone comprising the irrotational flow about the device is patched together with a viscous zone containing the turbulent mixing flow. The inviscid region is computed by a higher order panel method, while an integral method is used for the description of the viscous part. A non-linear, constrained optimization study is undertaken for the design of the inlet region. In this study, the viscous-inviscid analysis is complimented with an algebraic penaltyfunctiontoaccountforflowseparation. The thrust-based Reynolds number as well as the free stream velocity are shown to be important parameters in the design of a thrust augmentor inlet.
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