Drop tolerance preconditioning for incompressible viscous flow

Abstract

The minimum updating matrix ordering (MUM) is combined with a drop tolerance preconditioned iterative method for solution of Jacobians derived from incompressible Navier-Stokes problems. Test results are presented for full computations to steady state. For high Reynold's number flows, the scaling of the variables has an important effect.

Keywords:

• Preconditioning
• drop tolerance
• ordering
• Navier-Stokes

AMS Subject Classification::

• 65F10
• 76D05

C.R. CATEGORIES::

• G1.3
• G1.8