Numerical Parametric Study of Hydrodynamic Ram

Abstract

A numerical parametric study was conducted to better understand the Hydrodynamic Ram (HRAM) event. The model considered a projectile penetrating a box which contains water either partially or fully. A standard model was developed and validated against the experimental data. Then, each parameter was varied individually to determine its effect during the HRAM event. The parameters considered were the water filling level in the box, its wall thickness, projectile impact velocity, projectile mass, impact angle, and projectile shape. The effect of individual parameter was compared, and the effects of different parameters were compared. Then an attempt was made to determine the combined effects of multi-variables. Even though the results and discussion are for the specific geometric and material data used in this study, the present findings are expected to provide valuable insights to the qualitative characteristics on the HRAM event.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2016
Accession Number
AD1060217

Entities

People

  • Kyoung J. Yun
  • Young W. Kwon

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Composite Materials
  • Energy
  • Engineering
  • Equations
  • Experimental Data
  • Fuel Tanks
  • Governments
  • Hardening
  • High Pressure
  • Kinetic Energy
  • Linear Momentum
  • Materials
  • Measurement
  • Momentum
  • Plastic Deformation
  • Pressure Measurement
  • Projectiles
  • Shock Waves
  • Simulations
  • Standards
  • Strain Rate
  • Thickness
  • Walls
  • Water Tanks

Readers

  • Aerodynamics/Aeronautics.
  • Computational Fluid Dynamics (CFD)
  • Geotechnical Engineering.