Core Concepts
Preconditioning with constant-density operators enhances convergence in variable-density incompressible flows.
Abstract
The study investigates preconditioners for solving linear systems in variable-density incompressible Navier-Stokes equations. Preconditioning with inverse operator for constant-density flow system improves convergence. Method validated on one-dimensional flow, Rayleigh-Taylor instability, and swirling jet. Preconditioning reduces condition number, enhancing robustness and convergence properties.
Stats
Numerical evidence shows improved convergence due to decrease in condition number of operators.
Authors validate robustness and convergence properties on realistic problems.
Preconditioning with constant-density operator enhances convergence in variable-density flows.
Quotes
"Numerical evidence shows that the convergence is significantly improved due to the notable decrease in the condition number of the operators."
"Most importantly, we then validate the robustness and convergence properties of the method on two more realistic problems."