Fluid flow and heat transfer analysis for power law fluids in circular cylinder

Abstract

In this thesis, equations using momentum and heat transfer theory for Power-Law, non-Newtonian fluids over circular cylinder are being solved numerically. A simple model of condenser is used to analyze the effect of the Power-law fluids behavior in industrial operating conditions. Results on the detail structure of the flow and temperature are presented using the following parameter range: - Power-law index (0.4 < n < 1.8), and generalized Reynolds number (1 = Re = 104). At low Reynolds number, the flows remain attached to the surface of the cylinder. This implies higher heat transfer characteristic for value of n less than 1 (ie. Newtonian Fluid). As the Reynolds number increases, higher heat transfer phenomena are still observed but not as good as those of low Reynolds.