Chebyshev super spectral viscosity method for a fluidized bed model

JOURNAL OF COMPUTATIONAL PHYSICS

卷:186

Article

Sarra, SA

关键词: Chebyshev collocation;    super spectral viscosity;    pseudospectral;    Gibbs-Wilbraham phenomenon;    edge detection;    Gegenbauer postprocessing;   

DOI  :  10.1016/S0021-9991(03)00089-5

来源: Elsevier

【 摘 要 】

A Chebyshev super spectral viscosity method and operator splitting are used to solve a hyperbolic system of conservation laws with a source term modeling a fluidized bed. The fluidized bed displays a slugging behavior which corresponds to shocks in the solution. A modified Gegenbauer postprocessing procedure is used to obtain a solution which is free of oscillations caused by the Gibbs-Wilbraham phenomenon in the spectral viscosity solution. Conservation is maintained by working with unphysical negative particle concentrations. (C) 2003 Elsevier Science B.V. All rights reserved.

【 授权许可】

Free