Fluid Structure Interaction: 3D Numerical Simulation and Visualization of a Micropump

The numerical treatment of coupled problems has turned out to be one of the principal challenges in numerical simulation. Due to the increasing demands for accuracy, the interactions of different physical phenomena can no longer be neglected or simplified, but have to be taken into account in detail. On the other hand, because of the variety of applications and due to the fact that modeling such a kind of interaction always requires a lot of experience from different scientific areas, the problem specific modeling and simulation of a coupled problem very often seem to be a too time-consuming process. Therefore, modular concepts which allow to profit from existing subproblem models or codes, resp., and to integrate those into an efficient coupling algorithm have to be developed. In this paper, we study a modular approach for the 3D numerical simulation of the fluid structure interaction in a valve-driven micropump that has been designed for medical and environmental applications. For the structural part, we use ADINA and MSC/NASTRAN. The fluid flow simulation is done with the MAC-based Navier-Stokes solver NaSt3D which has been developed at our department. The coupling itself is realized via an outer iterative scheme.     «

The numerical treatment of coupled problems has turned out to be one of the principal challenges in numerical simulation. Due to the increasing demands for accuracy, the interactions of different physical phenomena can no longer be neglected or simplified, but have to be taken into account in detail. On the other hand, because of the variety of applications and due to the fact that modeling such a kind of interaction always requires a lot of experience from different scientific areas, the proble...     »