Sears–Haack body (volume)

Description

The Sears–Haack body is the shape with the lowest theoretical wave drag in supersonic flow, for a given body length and given volume. The mathematical derivation assumes small-disturbance (linearized) supersonic flow, which is governed by the Prandtl-Glauert equation. The volume of the body can be calculated by the radius at its maximum (occurs at center of the shape) and its length.

Related formulas

Variables

VVolume of the body (m3)
πpi
RmaxRadius at its maximum (at the center of the shape) (m)
LLength of the body (m)