Accession Number:

AD0261175

Title:

FLOW AROUND A SQUARE BODY WITH A PYRAMIDAL-TYPE NOSE AT ANGLE OF ATTACK AND A MACH NUMBER OF 1.73

Descriptive Note:

Corporate Author:

JOHNS HOPKINS UNIV SILVER SPRING MD APPLIED PHYSICS LAB

Personal Author(s):

Report Date:

1961-01-01

Pagination or Media Count:

1.0

Abstract:

The normal-force and pitching-moment coefficients of a square body with a pyramidal-type nose are determined by two approximate methods at a Mach number of 1.73. The coefficients are compared with the experimental normal-force and pitchingmoment coefficients obtained from wind tunnel tests. The pressure distributions along and around the nose section are first calculated by a linearized method, which is based on the superposition of elementary conical flows due to line sources. The second approximate method for determining the nose pressure distribution is based on the second order shock-expansion method, which uses a corrective procedure that includes the principle of hypersonic similarity. Pressure distributions along the aft body are evaluated by the second method. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE