The papers below describe the use of the immersed boundary technique for simulating fluid flow and heat transfer problems over or inside complex geometries. The methodology is based on a fractional step method to integrate in time. The governing equations are discretized and solved on a regular mesh with a finite volume non-staggered grid technique. Implementations of Dirichlet and Neumann type of boundary conditions are also presented and validated. Several phenomenologically different fluid flow and heat transfer problems are simulated using the technique proposed in this study. The accuracy of the method is second-order, and the efficiency is verified by favorable comparison with previous results from numerical simulations and laboratory experiments.
| Click below to see some animations of falling cylinders and neutraly buoyant particles in a lid-driven cavity flow | ||||
 Falling cylinder |
 Lid-driven cavity flow |
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 Flow around a sphere |
 Collision of a sphere |
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| Click below to see some animations of one or several cylinders oscillating | ||||
 Vertical oscillation Re=100 |
Vertical oscillation Re=300 |
Horizontal oscillation Re=100 |
 Vertical oscillation same phase Re=100 |
Vertical oscillation out of phase Re=100 |
Vertical oscillation out of phase Re=100 |
