Accession Number:

AD0895233

Title:

The Unsteady Compressible Flow with Rotational Symmetry,

Descriptive Note:

Corporate Author:

NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s):

Report Date:

1951-11-15

Pagination or Media Count:

25.0

Abstract:

In order to investigate the effect of chambrage on the gas flow in the explosive chamber of a gun, a study of three dimensional flow with rotational symmetry was undertaken. It is known that, for gun barrels of limited length, missile speeds can be increased by enlarging the explosive chamber and by improving the contour of the chamber where it leads into the barrel. The equations for unsteady compressible isentropic flow, using a perfect gas, were expressed in terms of characteristic surfaces. The properties of these characteristic surfaces and characteristic grids are discussed. A relationship between the dependent variables for each characteristic surface was established which constitutes a linkage system. By means of this linkage system equations are set up which make it possible to obtain the solution of the flow by means of a numerical integration. Author

Subject Categories:

  • Ballistics
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE