Effect of the forcing term in the multiple-relaxation-time lattice Boltzmann equation on the shear stress or the strain rate tensor

2012 ◽  
Vol 86 (1) ◽  
Author(s):  
Zhenhua Chai ◽  
T. S. Zhao
Keyword(s):  
Shear Stress ◽  
Relaxation Time ◽  
Boltzmann Equation ◽  
Strain Rate ◽  
Lattice Boltzmann ◽  
Lattice Boltzmann Equation ◽  
Strain Rate Tensor ◽  
Forcing Term ◽  
Multiple Relaxation Time

scholarly journals The computation of strain rate tensor in multiple-relaxation-time lattice Boltzmann model

2018 ◽  
Vol 75 (8) ◽  
pp. 2888-2902
Author(s):  
Wenhuan Zhang ◽  
Changsheng Huang ◽  
Yihang Wang ◽  
Baochang Shi ◽  
Shibo Kuang ◽  
...  
Keyword(s):  
Relaxation Time ◽  
Strain Rate ◽  
Lattice Boltzmann ◽  
Lattice Boltzmann Model ◽  
Strain Rate Tensor ◽  
Multiple Relaxation Time ◽  
Boltzmann Model

scholarly journals On the moment system and a flexible Prandtl number

2014 ◽  
Vol 28 (06) ◽  
pp. 1450048 ◽  
Author(s):  
Raúl Machado
Keyword(s):  
Relaxation Time ◽  
Boltzmann Equation ◽  
Prandtl Number ◽  
Lattice Boltzmann ◽  
Continuous Distribution ◽  
Lattice Boltzmann Equation ◽  
Collision Model ◽  
Single Relaxation Time ◽  
Moment System ◽  
The Moment

The Maxwell–Boltzmann moment system can be seen as a particular case of a mathematically more general moment system proposed by Machado.1 These last moments, of which a suggested continuous distribution and an integral generating form are presented here for some orders, are used in this paper to theoretically show (one of) their usefulness: A flexible Prandtl number can be obtained in both the Boltzmann equation and in the lattice Boltzmann equation with a conventional single relaxation time Bhatnagar–Gross–Krook (BGK) collision model.

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