Accession Number : AD0757584

Title :   The Effect of Wall Suction on the Turbulent Pipe-Flow Friction Coefficient.

Descriptive Note : Technical memo.,

Corporate Author : JOHNS HOPKINS UNIV SILVER SPRING MD APPLIED PHYSICS LAB

Personal Author(s) : Allen,R. W. ; Kalny,R. ; Newman,R. W.

Report Date : JAN 1973

Pagination or Media Count : 59

Abstract : The report deals with the flow-friction induced by wall suction at the boundary walls of main channels in missile transpiration-cooling systems, gas-turbine heat exchangers, porous-wall chemical reactors, and pipe condensers of space power plants. The pronounced effect of wall suction on the friction of turbulent flow in these systems prompts a search for verified engineering flow-friction correlations. Results of a series of experiments are reported, together with an analysis of related experiments reported earlier in the literature. Comparisons are made with previous porous-pipe turbulent-flow experiments of Weissberg and Berman and with the later porous-pipe experiments of Burnage and the results of the self-similar analytical theory of turbulent pipe-flow with suction are also compared with experiment. (Author Modified Abstract)

Descriptors :   (*BOUNDARY LAYER CONTROL, HEAT TRANSFER), (*PIPES, FRICTION), TURBULENT BOUNDARY LAYER, CORRELATION TECHNIQUES, THEORY, EXPERIMENTAL DATA, COOLING

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE