Research

Fluid-Structure Interaction (FSI)

I proposed a novel software framework for the simulation of coupled Fluid-Structure Interaction phenomena in complex industrial problems. Two different formulations were developed and implemented in this framework:

1. Fictitious Domain Method [Paper]

This formulation is based on the well-known Fictitious Domain Method. The nature of the formulation renders it highly suitable for simulation(s) of the interaction of thin flexible structures with the fluid flow, for example, filaments, heart valves, flags, parachutes, stadium roofs etc.

The following simulations are performed using the FDM formulation.

2. CutFEM approach

This formulation is based on cut-cell approach over hierarchical b-spline grids. Due to the nature of the formulation, it is highly suitable for the simulation of the interaction of bulky solids with fluid flow. This formulation has been implemented into a very robust and efficient software tool using CGAL library for point-location algorithm in 3D and VTK for post-processing, including parallelisation for HPC platforms using MPI and PETSc library. I have successfully performed coupled FSI simulations of sizes up to 5 million DOFs.

This framework is published in Paper1, Paper2, Paper3, Paper4, Paper5, Paper6, Paper7

The following simulations are performed using the CutFEM approach.