Testing of Closure Assumption for Fully Developed Turbulent Channel Flow with the Aid of a Lattice Boltzmann Simulation

2005 ◽  
pp. 77-91
Author(s):  
Peter Lammers ◽  
Kamen N. Beronov ◽  
Thomas Zeiser ◽  
Franz Durst
Keyword(s):  
Channel Flow ◽  
Lattice Boltzmann ◽  
Turbulent Channel Flow ◽  
Lattice Boltzmann Simulation ◽  
Closure Assumption

Massively Parallel Lattice-Boltzmann Simulation of Turbulent Channel Flow

1997 ◽  
Vol 08 (04) ◽  
pp. 869-877 ◽  
Author(s):  
Giorgio Amati ◽  
Sauro Succi ◽  
Renzo Piva
Keyword(s):  
Channel Flow ◽  
Lattice Boltzmann ◽  
Scaling Laws ◽  
Turbulent Channel Flow ◽  
Parallel Machine ◽  
Wall Layer ◽  
Massively Parallel ◽  
Parallel Performance ◽  
Lattice Boltzmann Simulation ◽  
Lattice Boltzmann Simulations

High resolution lattice-Boltzmann simulations of turbulent channel flow on the Quadrics parallel machine are presented. The parallel performance is discussed together with some preliminary results concerning the vorticity structures which appear near the wall layer and their influence on the scaling laws.

scholarly journals Lattice Boltzmann simulation of particle-laden turbulent channel flow

2016 ◽  
Vol 124 ◽  
pp. 226-236 ◽  
Author(s):  
Lian-Ping Wang ◽  
Cheng Peng ◽  
Zhaoli Guo ◽  
Zhaosheng Yu
Keyword(s):  
Channel Flow ◽  
Lattice Boltzmann ◽  
Turbulent Channel Flow ◽  
Lattice Boltzmann Simulation

Shear-Improved Smagorinsky Modeling of Turbulent Channel Flow Using Generalized Lattice Boltzmann Equation

2010 ◽  
Author(s):  
Saeed Jafari ◽  
Mohammad Rahnama
Keyword(s):  
Boltzmann Equation ◽  
Channel Flow ◽  
Lattice Boltzmann ◽  
Computational Cost ◽  
Turbulent Channel Flow ◽  
Lattice Boltzmann Equation ◽  
Wall Region ◽  
Smagorinsky Model ◽  
Mean Velocity ◽  
Turbulent Statistics

Generalized Lattice Boltzmann Equation (GLBE) was used for computation of turbulent channel flow for which Large Eddy Simulation (LES) was employed as a turbulence model. The subgrid-Scale turbulence effects were simulated through a Shear-Improved Smagorinsky Model (SISM) which is capable of predicting turbulent near wall region accurately without any wall function. Computations were done for a relatively coarse grid with shear Reynolds number of 180 in a parallelized code. Good numerical stability was observed for this computational framework. Results of mean velocity distribution across the channel showed good correspondence with Direct Numerical Simulation (DNS) data. Negligible discrepancies were observed for computed turbulent statistics between present computations and those reported from DNS. Three-dimensional instantaneous vorticity contours showed complex vortical structures appeared in such flow geometries. It is concluded that such framework is capable of predicting accurate results for turbulent channel flow without adding significant complication and computational cost to the standard Smagorinsky model.

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