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A combined immersed boundary (IB) and volume of fluid (VOF) methodology is used to simulate the interactions of free surface waves and a submerged solid object, either stationary or in motion. The IB method is proved to be capable of dealing with a moving solid boundary by the simulation of a square cylinder oscillating in a fluid at rest. The combined IB–VOF model is further validated by simulating...
An immersed boundary (IB) method has been used to simulate oscillating flows over a bed-mounted circular cylinder at Reynolds number Re=1100. Two Keulegan–Carpenter (KC) numbers are considered in the study. For the smaller number of 0.99, there is no boundary layer separation and hence the flow is relatively simple. The acting forces on the cylinder can be evaluated by the potential theory. For the...
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