Conjugate heat transfer from a circular cylinder to a power‐law non‐Newtonian fluid

Abstract

In this paper, conjugate heat transfer from a circular cylinder with a heat source to a non‐Newtonian power‐law fluid is studied. Numerical calculations are carried out in an unconfined computational domain for Reynolds numbers ( 5 ≤ Re ≤ 40), power‐law indices ( 0.6 ≤ n ≤ 1.4), and Prandtl numbers ( 1 ≤ Pr ≤ 50) with different heat source values. The pressure coefficient, value, and position of maximum temperature inside the cylinder and the local and average Nusselt number are calculated. Also, the effects of Re, Pr, n, and heat source value on the thermal characteristics in the solid cylinder and the fluid around it are studied and discussed.

Topological Characteristics of Obstacles and Nonlinear Rheological Fluid Flow in Presence of Insulated Fins: A Fluid Force Reduction Study

“…Gangawane and Manikandan [15] have explored the thermal flow features over a hexagonal block with constant temperature, solved by using finite volume technique with QUICK discretization and SIMPLE algorithm. Asnaashari and Tohidi [16] investigated the effects of flow and heat transfer of power law fluid in an unconfined computational domain. Dhiman and Shyam [17] have examined the influence of Reynolds number on unsteady heat transfer over an equilateral triangular block and created grid by GAMBIT and solved it by using FLUENT.…”