Pinelli, AlfredoBenocci, C.Deville, M.2023-06-202023-06-201992https://hdl.handle.net/20.500.14352/60728An original method for preconditioning Chebyshev collocated advection-diffusion operators is proposed. The preconditioner, based on an upwind finite difference approximation, is tested on one and two dimensional problems with both Neumann and Dirichlet boundary conditions.book partmetadata only access531AdvectionChebyshev approximationcomputational fluid dynamicscomputational gridsconvection-diffusion equationoperators (mathematics)preconditioningalgorithmsboundary conditionsconvergenceeigenvaluesfinite difference theoryone dimensional flowtwo dimensional flowupwind schemes (mathematics)Física (Física)22 Física