
Accession Number : AD0658549
Title : TRANSIENT NATURAL CONVECTION IN A VERTICAL TUBE WITH NONAXISYMMETRIC WALL TEMPERATURE,
Corporate Author : FLUID THERMAL AND AEROSPACE SCIENCES CASE INST OF TECH CLEVELAND OHIO
Personal Author(s) : Lu,PauChang ; Sarma,G. S. R.
Report Date : JUN 1967
Pagination or Media Count : 20
Abstract : Izumi has investigated the commencement of the natural convection flow inside of a vertical circular tube. The quasiincompressible fluid is initially at rest with a uniform temperature the same as the wall temperature. At time t = 0, the wall temperature is suddenly changed. With a body force acting in the axial direction, a natural convection flow starts owing to the transient nonuniform temperature field established in the fluid. Izumi only investigated the case where the wall temperature is uniform at all times. In practice, it is more likely to find a change of the wall temperature from the initial uniform value to a new nonuniform distribution. The ensuing flow will no longer be axisymmetric as in Izumi's work. It is our object here to examine such transient nonaxisymmetric flows. (Author)
Descriptors : (*FLUID FLOW, *CONVECTION(HEAT TRANSFER)), PIPES, TEMPERATURE, INTEGRAL TRANSFORMS, VELOCITY, BESSEL FUNCTIONS
Subject Categories : Fluid Mechanics
Radiofrequency Wave Propagation
Distribution Statement : APPROVED FOR PUBLIC RELEASE