KOMPUTASI PARALEL GPU PADA SIMULASI ALIRAN TURBULEN NON-NEWTONIAN PSEUDOPLASTIK DENGAN ENTROPIC LATTICE BOLTZMANN METHOD
The Kinetic Theory-based Lattice Boltzmann Method (LBM) is a promising contender in the Computational Fluid Dynamics (CFD) world. It can simulate ows which were previously very hard to do, such as ows in complex geometries, porous media, multi-phase ows, micro ows, complex boundary conditi...
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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/32140 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | The Kinetic Theory-based Lattice Boltzmann Method (LBM) is a promising contender
in the Computational Fluid Dynamics (CFD) world. It can simulate
ows
which were previously very hard to do, such as
ows in complex geometries,
porous media, multi-phase
ows, micro
ows, complex boundary conditions, etc.
However, conventional LBM suers from numerical instabillities and accuracy
issues for high Reynolds numbers and turbulent
ows, which prompted the development
of the Entropic Lattice Boltzmann Method (ELBM). To this day, various
Entropic Lattice Botzmann models have been developed for Newtonian
uids, but
none for non-Newtonian
uids. In this thesis the author extends the ELBM for
turbulent non-Newtonian
ows. We prove the validity of this model by numerical
simulation on turbulent
ows in a lid-driven cavity for non-Newtonian Power-Law
uids. Simulation results are analyzed for numerical stability and accuracy, and
compared to existing methods in the eld of Large Eddy Simulations. To speed up
computation, a GPU implementation is provided. This thesis is the rst development
of an Entropic Lattice Boltzmann model for turbulent non-Newtonian
ows. |
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