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DEVELOPMENT OF LOW-DIFFUSION FLUX-SPLITTING METHODS FOR DENSE GAS-SOLID FLOWS
Citation:
Mao, D., J. R. Edwards, A. V. Kuznetsov, AND R K. Srivastava*. DEVELOPMENT OF LOW-DIFFUSION FLUX-SPLITTING METHODS FOR DENSE GAS-SOLID FLOWS. JOURNAL OF COMPUTATIONAL PHYSICS. Elsevier Science BV, Amsterdam, Netherlands, 185(1):100-119, (2003).
Description:
The development of a class of low-diffusion upwinding methods for computing dense gas-solid flows is presented in this work. An artificial compressibility/low-Mach preconditioning strategy is developed for a hyperbolic two-phase flow equation system consisting of separate solids and gas momentum and continuity equations. The eigenvalues of this system are used to devise extensions of the AUSM+[1] and LDFSS[2] flux-splitting methods that provide high-resolution capturing of bubble growth and collapse in gas-solid fluidized beds. Applications to several problem in fluidization are presented.