Accession Number:

ADA151102

Title:

A Computer Program to Calculate the Supersonic Flow over a Solid Cone in Air or Water.

Descriptive Note:

Master's thesis,

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s):

• Hughes,P. W.

Report Date:

1984-06-01

Pagination or Media Count:

117.0

Abstract:

The computer program calculates the supersonic flow over a cone in air or water. The main objective is to calculate the cone semi-vertex angle given prescribed initial conditions. The program is written in structured FORTRAN and implements Busemanns graphical integration technique. Supersonic flow over a cone in water is useful as a good first approximation to the motion of the metal jet 0from an explosive shaped-charge fired underwater. A typical result for supersonic flow over a cone in water is as follows given an upstream temperature, 323.16 upstream pressure, 1 bar shock angle, 20.0 deg, and pressure behind the shock front, 5 kilobars, the cone semi-vertex angel is calcuated to be 7.23 deg. Generally, pressures involved in water flow are much larger than for air flow, and the cone semi-vertex angles for water flow are smaller than for air flow.

Descriptors:

• *SUPERSONIC FLOW
• COMPUTER PROGRAMS
• TEMPERATURE
• WATER FLOW
• AIR FLOW
• FORTRAN
• GRAPHICS
• CONICAL BODIES
• SHAPED CHARGE JETS
• SHAPED CHARGE WARHEADS

Subject Categories:

• Ammunition and Explosives
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE