Accession Number : AD0655229

Title :   SHOCK PROPAGATION IN NONHOMOGENEOUS ATMOSPHERES AND MODIFIED SACHS SCALING. PART I: EXPONENTIAL IDEAL-GAS ATMOSPHERE,

Corporate Author : NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s) : Lutzky,Morton ; Lehto,Delbert L.

Report Date : 19 JUN 1967

Pagination or Media Count : 21

Abstract : A scaling procedure is presented for the case of a shock in a spherically symmetric, exponential, ideal-gas atmosphere. This scaling procedure allows a very convenient systemization of the shock pressure-distance curves and leads to a simple method for the investigation of the validity of modified Sachs scaling. It is found that modified Sachs scaling yields pressure-distance curves which are in excellent agreement with results obtained by hydrodynamic code calculations, except in the region where the minimum in overpressure occurs. In this region the deviation is at most 20 per cent. Some comments are made on the applicability of these results to shocks in a horizontally stratified atmosphere. (Author)

Descriptors :   (*SHOCK WAVES, PROPAGATION), (*ATMOSPHERES, SHOCK WAVES), SCALE, MATHEMATICAL ANALYSIS, PRESSURE

Subject Categories : Atmospheric Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE