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Higher-order differencing method with a multigrid approach for the solution of the incompressible flow equations at high Reynolds numbers

Journal Article · · Numerical Heat Transfer. Part B, Fundamentals; (United States)
 [1]
  1. Argonne National Lab., Argonne, IL (United States)
A higher-order differencing method was recently proposed for the convection-diffusion equation, which even with a coarse mesh gives oscillation-free solutions that are far more accurate than those of the upwind scheme. In this paper, the performance of this method is investigated in conjunction with the performance of different iterative solvers for the solution of the Navier-Stokes equations in the vorticity-streamfunction formulation for incompressible flow at high Reynolds numbers. Flow in a square cavity with a moving lid was chosen as a model problem. Solvers that performed well at low Re numbers either failed to converge or had a computationally prohibitive convergence rate at high Re numbers. The additive correction method of Settari and Aziz and an iterative incomplete lower and upper (ILU) solver were used in a multigrid approach that performed well in the whole range of Re numbers considered (from 1000 to 10,000) and for uniform as well as nonuniform grids. At high Re numbers, point or line Gauss-Seidel solvers converged with uniform grids, but failed to converge with nonuniform grids.
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
7016026
Journal Information:
Numerical Heat Transfer. Part B, Fundamentals; (United States), Journal Name: Numerical Heat Transfer. Part B, Fundamentals; (United States) Vol. 22; ISSN 1040-7790; ISSN NHBFEE
Country of Publication:
United States
Language:
English