
Accession Number : AD0650250
Title : FURTHER NOTES ON THE TWODIMENSIONAL FLOW OF AN INVISCID DENSITYSTRATIFIED 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 twodimensional flow of a densitystratified 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