Three dimensional heat transfer from a square cylinder at low Reynolds numbers

MAHİR N.

INTERNATIONAL JOURNAL OF THERMAL SCIENCES, vol.119, pp.37-50, 2017 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 119
  • Publication Date: 2017
  • Doi Number: 10.1016/j.ijthermalsci.2017.04.031
  • Journal Name: INTERNATIONAL JOURNAL OF THERMAL SCIENCES
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.37-50
  • Keywords: 3-D heat transfer, Square cylinder, Forced convection, CIRCULAR-CYLINDER, RECTANGULAR CYLINDERS, LAMINAR-FLOW, FLUID-FLOW, WAKE, TRANSITION, PARALLEL
  • Eskisehir Osmangazi University Affiliated: Yes

Abstract

Three-dimensional unsteady flow and heat transfer from an isothermal square cylinder subjected to crossflow of air is numerically investigated. The governing continuity, momentum and energy equations are solved using implicit fractional step method. The first order spatial derivatives are discretized using a third-order upwind scheme while the second order derivatives from the viscous terms are discretized by central-difference formula. The momentum equations are solved separately using Crank-Nicholson time stepping method. The Poisson type equations are solved using Jacobi method with Chebyshev acceleration procedure.