VIRTUAL MASS IN STRATIFIED FLUIDS.

Abstract

The virtual mass of circular cylinders immersed in a uniformly stratifed nonhomogeneous fluid medium has been investigated both theoretically and experimentally. The experimental equipment consisted of a reservoir filled with one inch thick layers of salt water solution. The density uniformly decreased with elevation (stable stratification). The fluid motion about the cylinder was provided by the standing waves created with a plunger. The resulting velocities and accelerations about the cylinder were harmonic. The theoretical analysis consisted of the calculation of the inertia coefficient through the evaluation of the total kinetic energy of the fluid medium. Use was made of the psuedo-potential flow solution for the stratified flow about a circular cylinder. The results have shown that the inertia coefficient for circular cylinders immersed in a uniformly stratified media is about 25% larger than that for a cylinder immersed in an homogeneous medium. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1968
Accession Number
AD0835214

Entities

People

  • Kenneth Wilder Loveland

Organizations

  • Naval Postgraduate School

Tags

DTIC Thesaurus Topics

  • Coefficients
  • Elevation
  • Energy
  • Flow
  • Fluids
  • Kinetic Energy
  • Layers
  • Physical Properties
  • Potential Flow
  • Reservoirs
  • Salt Water
  • Standing Waves
  • Stratification
  • Stratified Fluids
  • Test And Evaluation
  • Test Equipment

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Fluid Dynamics.