
Accession Number : AD0735875
Title : Finite Amplitude Propagation of an Underwater Explosion Shock Wave along a Strongly Refracted Ray Tube
Corporate Author : NAVAL ORDNANCE LAB WHITE OAK MD
Personal Author(s) : Goertner, John F
PDF Url : AD0735875
Report Date : 01 Dec 1971
Pagination or Media Count : 31
Abstract : The effect of wave overtaking on the peak pressure of refracted underwater explosion shock waves is estimated by means of a finite amplitude calculation for the wave propagation along refracted ray tubes given by simple ray theory. The results indicate that a reduction in peak pressure occurs due to increased waveovertaking along refracted ray paths to first caustics. Reductions in the peak pressure no greater than 5% occurred for the particular refractive conditions treated, but preliminary work with other conditions indicates much greater reductions can occur.
Descriptors : *COMPRESSIBLE FLOW, *SHOCK WAVES, *UNDERWATER EXPLOSIONS, DIFFERENCE EQUATIONS, ENTROPY, EQUATIONS OF MOTION, INTEGRATION, NUMERICAL ANALYSIS, PARTIAL DIFFERENTIAL EQUATIONS, REFRACTION
Subject Categories : Numerical Mathematics
Explosions
Fluid Mechanics
Distribution Statement : APPROVED FOR PUBLIC RELEASE