THE LINEAR STABILITY OF PLANE STAGNATION-POINT FLOW AGAINST GENERAL DISTURBANCES

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Abstract
The linear-stability theory of plane stagnation-point flow against an infinite flat plate is re-examined. Disturbances are generalized from those of Görtler type to include other types of variations along the plate. It is shown that Hiemenz flow is linearly stable and that the Görtler-type modes are those that decay slowest. This work then rationalizes the use of such self-similar disturbances on Hiemenz flow and shows how questions of disturbance structure can be approached on other self-similar flows.

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