3D Fluid-Structure Interaction Simulation of an Obstacle in a Fluid Channel

Application ID: 987

In this model, fluid is flowing through a channel containing a flexible obstacle. Due to the viscous and pressure forces asserted by the fluid, the obstacle bends. With the obstacle undergoing a large deformation, the fluid flow domain also changes considerably. COMSOL Multiphysics takes these changes into account by computing the flow field on a moving mesh attached to the obstacle.

In this example model, the dimensions are such that the setup mostly resembles a MEMS flowmeter, but the modeling principles used are very general and can be applied to many situations where there is interaction between a structure and a fluid flow domain.