Accession Number : ADA304244

Title :   Water Waves Generated by Underwater Explosions.

Descriptive Note : Technical rept. 1 Jul 93-30 Jun 94,

Corporate Author : ROSENSTIEL SCHOOL OF MARINE AND ATMOSPHERIC SCIENCE MIAMI FL

Personal Author(s) : Le Mehaute, Bernard ; Wang, Shen

PDF Url : ADA304244

Report Date : FEB 1996

Pagination or Media Count : 396

Abstract : The present treatise assembles the theoretical foundations and experimental results on the generation and propagation of water waves generated by underwater explosions. After a brief overview of the physical processes and a presentation of order of magnitude of explosion generated water waves (EGWW) as function of explosion parameters, linear theories and experimental calibration are presented. Nonlinear wave theories and their calibration are necessary in shallow water when the water crater caused by the explosion is not small compared to water depth. The importance of dissipation processes due to wave-sea floor interactions is emphasized, particularly when an EGWW travels on long continental shelf. Methodologies for the propagation of transient waves over 3D bathymetries are developed. The simulation of EGWW in the laboratory is reviewed. Finally, a numerical method based on Boundary Integral Method is applied to investigate the dynamic of bubble formation and wave generation near the explosion. (MM)

Descriptors :   *WATER WAVES, *UNDERWATER EXPLOSIONS, *EXPLOSION BUBBLES, MATHEMATICAL MODELS, DAMPING, TURBULENT BOUNDARY LAYER, SAND, DEPTH, EXPLOSION EFFECTS, SHALLOW WATER, CONTINENTAL SHELVES, BATHYMETRY, WAVE PROPAGATION, BOUNDARY VALUE PROBLEMS, SPECIAL FUNCTIONS(MATHEMATICS), HYDRODYNAMICS, OCEAN BOTTOM, CRATERS, WATER JETS.

Subject Categories : Physical and Dynamic Oceanography
      Explosions

Distribution Statement : APPROVED FOR PUBLIC RELEASE