Search results for "Static mixer"

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Iterative momentum relaxation for fast lattice-boltzmann simulations

1999

Lattice-Boltzmann simulations are often used for studying steady-state hydrodynamics. In these simulations, however, the complete time evolution starting from some initial condition is redundantly computed due to the transient nature of the scheme. In this article we present a refinement of body-force driven lattice-Boltzmann simulations that may reduce the simulation time significantly. This new technique is based on an iterative adjustment of the local body-force and is validated on a realistic test case, namely fluid flow in a static mixer reactor.

Body forceComputer sciencebusiness.industryTime evolutionLattice Boltzmann methodsRelaxation (iterative method)MechanicsComputational fluid dynamicsStatic mixerlaw.inventionMomentumlawFluid dynamicsInitial value problembusinessAlgorithm
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Iterative momentum relaxation for fast lattice-Boltzmann simulations

2001

Abstract Lattice-Boltzmann simulations are often used for studying steady-state hydrodynamics. In these simulations, however, the complete time evolution starting from some initial condition is redundantly computed due to the transient nature of the scheme. In this article we present a refinement of body-force driven lattice-Boltzmann simulations that may reduce the simulation time significantly. This new technique is based on an iterative adjustment of the local body-force. We validate this technique on three test cases, namely fluid flow around a spherical obstacle, flow in random fiber mats and flow in a static mixer reactor.

Mathematical optimizationComputer Networks and CommunicationsComputer scienceLattice Boltzmann methodsTime evolutionPorous mediaRelaxation (iterative method)Fluid mechanicsMechanicsStatic mixerlaw.inventionMomentumFlow (mathematics)Hardware and ArchitecturelawLattice-Boltzmann methodFluid dynamicsInitial value problemFluid mechanicsPorous mediumSoftware
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