1965•Journal of the Royal Aeronautical SocietyRequires access

An Empirical Formula for Stagnation Point Velocity Gradient for Spheres and Circular Cylinders in Hypersonic Flow

D. R. Topham

Abstract

When stagnation heat transfer rates are expressed in terms of free stream flow properties, the following combination of terms is found to occur: — where ps pressure at the stagnation point p∞free stream pressure U∞free stream velocity Dnose diameter ßstagnation point velocity gradient.

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Key concepts: Stagnation point, Stagnation temperature, Stagnation pressure, Mechanics, Hypersonic speed, Pressure gradient, SPHERES, Hypersonic flow