Mixed convection heat transfer from confined tandem circular cylinders in cross-flow at low Reynolds number

Abstract

Numerical simulations of mixed convective in-compressible flow in a horizontal plane channel with adia-batic walls over two isothermal tandem circular cylinders of equal size are presented to investigate the effect of wall proximity of obstacles, gap space (i. e. gap between two cyl-inders), Reynolds number, and Richardson number. Com-putations have been carried out by using package ANSYS-CFX to solve the governing equations, for Reynolds num-bers of 5 to 40, and Richardson number of 0 to 4. Results show that, gap space has different effect under aiding ther-mal buoyancy on first and second cylinder in fluid charac-teristics as well as heat transfer effect.