Immersed Finite Element Method versus Immersed Finite Volume Method for the Simulation of Fluid Flow Problems

摘要

A new formulation of the immersed boundary method for simulating the time-dependent incompressible NSEs was presented in this work. The direct-forcing IFEM implemented is algebraically equivalent to the fractional step method. Lagrange multipliers are introduced to take into account the force at the fluid/solid interface.