Unsteady viscous flow calculations including surface heating and cooling effects
Abstract
A fully implicit solution technique is applied to study the unsteady flow characteristics including surface heating and cooling effects of an infinite circular cylinder at a Reynolds number of 100. The fluid flow problem is governed by the Boussinesq approximation of the NavierStokes equations. The equations in the finitedifference form are linearized using Newton's method, and the resulting system of equations including the boundary conditions is solved simultaneously using a direct solution technique. In a previous paper, the solution technique was presented and results (coarse grid) were discussed. Here, results are presented for higher grid densities, different boundary conditions, and various angles between the freestream velocity vector and the gravitational acceleration vector.
 Publication:

8th GAMMConference on Numerical Methods in Fluid Mechanics
 Pub Date:
 1990
 Bibcode:
 1990nmfm.conf...79V
 Keywords:

 Boussinesq Approximation;
 Circular Cylinders;
 Computational Fluid Dynamics;
 Flow Characteristics;
 Unsteady Flow;
 Viscous Flow;
 Biharmonic Equations;
 Boundary Conditions;
 Computational Grids;
 Finite Difference Theory;
 Forced Convection;
 NavierStokes Equation;
 Newton Methods;
 Reynolds Number;
 Fluid Mechanics and Heat Transfer