On lifting bodies which contain two-dimensional supersonic flows

Abstract

This paper is primarily concerned with the design principles of three-dimensional surfaces which can produce two-dimensional, centred compression waves and are derived from the Nonweiler wing. A study is made of the efficiencies (i.e. of the pressure recoveries) of various multi-shock and isentropic compression flows, and of the lateral slenderness of related caret bodies. For bodies producing isentropic compression, spanwise pressure distributions are shown to d.epend on anhedral and planform and it is noted that such bodies should be of use in research on three-dimensional boundary layers. It is shown that multi-wave and isentropic compression surfaces may be used as intakes (or isentropie bodies as nozzles), and that these can be used as components in the design of configurations, beneath which lifting and propulsive flows can be wholly two-dimensional. Various models are proposed for inclusion in current wind-tunnel programmes.