Accession Number : AD0270075

Title :   AN ACCURATE THEORY OF FREE CONVECTION

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : POMERANTSEV,A.A.

Report Date : 17 JAN 1962

Pagination or Media Count : 1

Abstract : The circulation of a hot-water heating system is calculated. The system consists of an annular hot-water heating pipe installed in a gravitational field. The lower section of the pipe contains a heater which releases a known amount of heat per unit time per unit cross-section area. For circulation to occur, the heater must: either be shifted somewhat to one side of the symmetry plane, or release more heat in one direction than in the other. The problem is treated by means of the 4 equations involved in the flow and heating of the liquid: continuity equation, momentum equation, expansion equation, and the heat-transfer equation. (Author)

Descriptors :   *CONVECTION, *FLUID FLOW, *HEAT TRANSFER, *PIPES, *THEORY, *WATER, ACCELERATION, ALGEBRA, FRICTION, FUNCTIONS(MATHEMATICS), GAS FLOW, GRAVITY, HEATERS, HEATING, LIQUIDS, PRESSURE, SERIES(MATHEMATICS), RAREFIED GAS DYNAMICS, TEMPERATURE, TURBULENCE, VECTOR ANALYSIS, VELOCITY

Distribution Statement : APPROVED FOR PUBLIC RELEASE