Student Posters Repository

Here,  we address the effect of the divergence-free interpolation and the high order discretizations to suppress the spurious force oscillations in Fluid-Structure interaction problem and heat transfer as well.  These problems usually suffer from nonphysical oscillations, especially in forces and pressure. To tackle this problem one can either impose a proper boundary condition for pressure equation or use a divergence-free interpolation method for velocities. Having developed a novel multi-grid Poisson solver for incompressible Navier Stokes solver which imposes the appropriate boundary condition at the immersed boundary surface for the pressure variable, a more consistent moving least square immersed boundary library is going to be developed to impose the desired divergence free boundary condition. This solver is supposed to be used for fluid-structure interaction studies with large deformation bodies and heat transfer in the complex domains. The proposed method also has competitive advantages over other methods like ghost-cell and cut-cell because it can be implemented completely independently from the fluid solver. This is in many ways akin to the continuous forcing techniques, however, enjoys the capability of the mentioned discrete forcing methods and results in the method being suited for 3D and unstructured-grids implementation.