Improving the low Mach number steady state convergence of the cascaded lattice Boltzmann method by preconditioning

Cascaded lattice Boltzmann method (LBM) involves the use of central moments in a multiple relaxation time formulation in prescribing the collision step. When the goal is to simulate low Mach number stationary flows, the greater the disparity between the magnitude of fluid speed and the sound speed,...

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Veröffentlicht in:	Computers & mathematics with applications (1987) 2019-08, Vol.78 (4), p.1115-1130
Hauptverfasser:	Hajabdollahi, Farzaneh, Premnath, Kannan N.
Format:	Artikel
Sprache:	eng
Schlagworte:	Acceleration Central moments Computational fluid dynamics Computer simulation Convergence Convergence acceleration Eigenvalues Lattice Boltzmann method Mach number Macroscopic equations Parameters Preconditioning Relaxation time Steady state Stiffness
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