Simulation of vortex dynamics in three-dimensional synthetic and free jets using the large-eddy lattice Boltzmann method

2004 ◽  
Vol 5 ◽  
Author(s):  
S. Menon ◽  
J. -H. Soo
Keyword(s):  
Lattice Boltzmann Method ◽  
Vortex Dynamics ◽  
Lattice Boltzmann ◽  
Three Dimensional ◽  
Free Jets ◽  
Large Eddy ◽  
Boltzmann Method

Very-Large Eddy Simulations of Disk Heat Transfer in a Rotating Cavity Using Lattice-Boltzmann Method

2018 ◽  
Author(s):  
J. Kouwa ◽  
Y. Iso ◽  
F. Polidoro ◽  
S. Gautier
Keyword(s):  
Heat Transfer ◽  
Lattice Boltzmann Method ◽  
Lattice Boltzmann ◽  
Three Dimensional ◽  
Flow Structures ◽  
Physical Parameters ◽  
Transfer Coefficients ◽  
Experimental Heat ◽  
Large Eddy ◽  
Boltzmann Method

Convective heat transfer in the cavity between two corotating disks is of great importance for turbomachinery applications. The complex three dimensional and unsteady flow structures induced by the Coriolis forces inside the cavity, and therefore the resulting heat transfer, are challenging to be measured in an experiment or predicted by simulation. In this paper a simplified cavity geometry, characterized experimentally by Long at al., has been chosen. The results obtained with a Very Large Eddy Simulation using Lattice-Boltzmann Method for two operating point with different rotation speeds are compared to the experimental heat transfer coefficients at the wall. The simulation results show the characteristic flow structures and behavior induced by the different regimes. A sensitivity analysis of the results is presented, both for numerical parameters such as grid resolution and for physical parameters, namely the throughflow velocity profile and shroud temperature.

Numerical evaluation of thermal comfort using a large eddy lattice Boltzmann method

2021 ◽  
Vol 192 ◽  
pp. 107618
Author(s):  
Marc Siodlaczek ◽  
Maximilian Gaedtke ◽  
Stephan Simonis ◽  
Marcel Schweiker ◽  
Naohiko Homma ◽  
...  
Keyword(s):  
Thermal Comfort ◽  
Lattice Boltzmann Method ◽  
Lattice Boltzmann ◽  
Numerical Evaluation ◽  
Large Eddy ◽  
Boltzmann Method
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