Accession Number : AD0650250

Title :   FURTHER NOTES ON THE TWO-DIMENSIONAL FLOW OF AN INVISCID DENSITY-STRATIFIED LIQUID PAST A SLENDER BODY,

Corporate Author : BOEING SCIENTIFIC RESEARCH LABS SEATTLE WASH FLIGHT SCIENCES LAB

Personal Author(s) : Graham,E. W. ; Graham,B. B.

Report Date : DEC 1966

Pagination or Media Count : 42

Abstract : Small velocity perturbations and an exponential variation of density with depth are assumed. The resulting linearized equation governing the two-dimensional flow of a density-stratified liquid is then used. Attention is given to small Froude numbers, where gravity forces are much more important than accelerative forces. Both the dipole (thickness producing) and vortex (lift producing) singularities are introduced. Flows in a channel, in an infinite fluid, and in an infinitely deep fluid with a free surface are considered. Wave drags for vortices, dipoles and dipole distributions are compared for the channel and infinite fluid cases. The upstream disturbances created by a dipole are investigated, and a simple expression defining the lee waves in the remote field is given. (Author)

Descriptors :   (*SLENDER BODIES, TWO DIMENSIONAL FLOW), (*TWO DIMENSIONAL FLOW, VELOCITY), DENSITY, EQUATIONS, LIQUIDS, GRAVITY, PERTURBATION THEORY, THICKNESS, LIFT, FLUIDS, VORTICES

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE