Loading of a Rigid Structure by an Underwater Explosion.

Abstract

The problem of propagation of a two-dimensional shock wave in water over a submerged rigid structure (semi-cylinder) due to a nearby underwater explosion has been solved numerically using a method of characteristics based upon a curvilinear coordinate system fixed in successive shock wave positions. The particular form of the Tait equation of state for water leads to a relative insensitivity of peak pressures on the curved structure to local temperature stratification. Maximum surface pressures occur at the transition from irregular to regular reflexion, and nonlinear theory appears essential there, even for shocks of Mach number close to unity. Results are given for a range of explosive strengths, distances from the structure, and structural dimensions. (Author)

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1972
Accession Number
AD0754103

Entities

People

  • Michael Hsiang-teh Chen
  • Richard L Collins

Organizations

  • University of California, Los Angeles

Tags

DTIC Thesaurus Topics

  • Coordinate Systems
  • Equations
  • Explosions
  • Explosives
  • Mach Number
  • Mathematics
  • Method Of Characteristics
  • Shock
  • Shock Waves
  • Stratification
  • Two Dimensional
  • Underwater Explosions
  • Waves

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Combustion and Flow Dynamics.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)