The similarity law for nonsteady hypersonic flows and requirements for the dynamical similarity of related bodies in free flight

Frank M. Hamaker, Thomas J. Wong
naca-tn-2631
Feb 1952


The similarity law for steady hypersonic flow about slender shapes is extended to nonsteady flows. Similitude for nonsteady flows is found to depend on the same conditions as for steady flows plus additional conditions derived from the nonsteady motions of the bodies under consideration. The aerodynamic forces and moments are correlated for related shapes by means of this law.

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