Effects of Knudsen numbers on natural convection patterns of nanofluids with a sub-continuous lattice Boltzmann model

2022 ◽  
Vol 187 ◽  
pp. 122541
Author(s):  
Pengxiang Sui ◽  
Yan Su ◽  
Vaikuong Sin ◽  
Jane H. Davidson
Keyword(s):  
Natural Convection ◽  
Lattice Boltzmann ◽  
Lattice Boltzmann Model ◽  
Continuous Lattice ◽  
Knudsen Numbers ◽  
Convection Patterns ◽  
Boltzmann Model

Lattice Boltzmann model for melting with natural convection

2008 ◽  
Vol 29 (5) ◽  
pp. 1469-1480 ◽  
Author(s):  
Christian Huber ◽  
Andrea Parmigiani ◽  
Bastien Chopard ◽  
Michael Manga ◽  
Olivier Bachmann
Keyword(s):  
Natural Convection ◽  
Lattice Boltzmann ◽  
Lattice Boltzmann Model ◽  
Boltzmann Model

scholarly journals Simulation of Thermomagnetic Convection in a Cavity Using the Lattice Boltzmann Model

2011 ◽  
Vol 2011 ◽  
pp. 1-14 ◽  
Author(s):  
Mahshid Hadavand ◽  
Antonio C. M. Sousa
Keyword(s):  
Natural Convection ◽  
Lattice Boltzmann ◽  
Magnetic Force ◽  
Electrical Current ◽  
Lattice Boltzmann Model ◽  
Thermomagnetic Convection ◽  
Microelectronic Devices ◽  
Third Dimension ◽  
Boltzmann Method ◽  
Boltzmann Model

Thermomagnetic convection in a differentially heated square cavity with an infinitely long third dimension is numerically simulated using the single relaxation time lattice Boltzmann method (LBM). This problem is of considerable interest when dealing with cooling of microelectronic devices, in situations where natural convection does not meet the cooling requirements, and forced convection is not viable due to the difficulties associated with pumping a ferrofluid. Therefore, circulation is achieved by imposing a magnetic field, which is created and controlled by placing a dipole at the bottom of the enclosure. The magnitude of the magnetic force is controlled by changing the electrical current through the dipole. In this study, the effects of combined natural convection and magnetic convection, which is commonly known as “thermomagnetic convection,” are analysed in terms of the flow modes and heat transfer characteristics of a magnetic fluid.

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