MULTIPLE RELAXATION TIME LATTICE BOLTZMANN METHOD FOR RAREFIED NANOFLUID FLOW IN TRANSITION REGIME
This work presents a Multiple-Relaxation-Time Lattice Boltzmann Method (MRT-LBM) as an approach to simulate rarefied gas within the transitional regime. Fluid flow in nanochannel is simulated and analysis is carried out. The MRT collision operator is extended to consider the Knudsen number param...
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| Main Author: | |
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| Format: | Final Project |
| Language: | Indonesia |
| Subjects: | |
| Online Access: | https://digilib.itb.ac.id/gdl/view/75162 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | This work presents a Multiple-Relaxation-Time Lattice Boltzmann Method
(MRT-LBM) as an approach to simulate rarefied gas within the transitional
regime. Fluid flow in nanochannel is simulated and analysis is carried
out. The MRT collision operator is extended to consider the Knudsen
number parameter in its relaxation time constants. The bounce-back specular
boundary conditions are implemented at the wall to account for reflected
momentum and tangential momentum. The second-order slip condition is
utilized for accurate modelling in the higher end of Knudsen number in the
regime. The Guo forcing scheme is used to analyse the Knudsen Minimum
phenomenon, while Zou-he pressure-driven scheme is used to analyse velocity
profile and the Knudsen Layer |
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