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Pinelli, Alfredo ; Couzy, W. ; Deville, M. O. ; Benocci, C. | Society for Industrial and Applied Mathematics | 1996A new Chebyshev collocation algorithm is proposed for the iterative solution of advection-diffusion problems. The main features of the method lie in the original way in which a finite-difference preconditioner is built and in the fact that the s[...]texto impreso
An original method to precondition Chebyshev collocated advection-diffusion operators is proposed. The preconditioner, based on an upwind finite difference approximation, is tested on one- and two-dimensional problems. The preconditioner behaves[...]texto impreso
A new Chebyshev pseudo-spectral algorithm with finite difference preconditioning is proposed for the solution of advection-diffusion equations, A mapping technique is introduced which allows good convergence for any Peclet number both for one-di[...]texto impreso
Pinelli, Alfredo ; Benocci, C. | 1989The development of a code for the large eddy simulation of wall bounded turbulent shear layers is described. The numerical approach selected is a finite difference discretization of the filtered Navier-Stokes equations, where the unresolved part[...]texto impreso
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Pinelli, Alfredo ; Benocci, C. ; Deville, M. | 1992An 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 Di[...]
