VISCOUS FLUID DYNAMICS AROUND MOVING OBJECT
The Lattice-Boltzmann (LB) method was applied to numerical simulations of fluid flows around moving objects. This research is inspired by fish moving collectively and allows for advantages in various aspects, such as increasing the efficiency of movement and avoiding predators. To solve fluid-str...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/71693 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | The Lattice-Boltzmann (LB) method was applied to numerical simulations of fluid flows
around moving objects. This research is inspired by fish moving collectively and allows for
advantages in various aspects, such as increasing the efficiency of movement and avoiding
predators. To solve fluid-structure interaction cases with complex and dynamic geometries, the
Lattice-Boltzmann method was combined with the Immersed Boundary (IB) method. The
Immersed Boundary method divided solids and fluids into two coordinate systems in which
the solid seems to be immersed in the mesh. Thus, the solid can move without having to
reconstruct the mesh every time, reducing computation time. Numerical simulations were
carried out to determine the effect of relaxation time, density ratio, and distance between two
solids on the fluid dynamics around a moving object. The results of this study indicate that
there is a shift in the position of the second solid every time period and differences in the
velocity of the fluid flow around the solid.
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