Accession Number : AD0712730

Title :   INVESTIGATION OF SENSITIVE FLOW PHENOMENA.

Descriptive Note : Final rept.,

Corporate Author : CONRAC CORP CALDWELL N J

Personal Author(s) : Martinez,E.

Report Date : DEC 1967

Pagination or Media Count : 19

Abstract : Two brief reports are included. The first on porous tube flow carries out a simple analytical development of the self-ejecting boundary layer resulting in an integral differential equation describing the pressure and velocity as a function of the axial distance. The results of a computer program are shown. The second report investigates the effect of an indentation in a conduit with respect to minimizing pressure losses. A water table model is used consisting of a channel with a single rectangular cavity of variable depth. Using pressure measurements and hydrogen bubble flow visualization the least pressure loss is found when the cavity is equal in depth and width and a stable cavity vortex pattern is formed. (Author)

Descriptors :   (*FLUID FLOW, POROUS MATERIALS), PIPES, WATER, BOUNDARY LAYER, EJECTION, PRESSURE, VELOCITY, FLOW VISUALIZATION, VORTICES

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE