This tutorial model illustrates how one can couple the OpenFOAM CFD solver with the FEATool Multiphysics FEA solver. In the model a stream of cool air is heated while flowing through a tube and fin heat exchanger. Due to several symmetry planes only a small section of the full heat exchanger geometry actually needs to be simulated, as illustrated in the following image.
The model demonstrates the multi-solver simulation process by first solving for the flow field using the OpenFOAM solver.
After which the temperature field is solved for with the built-in FEATool Multiphysics solver, using the pre-computed flow field as a constant input to the heat equation.
- Solve flow field with OpenFOAM
- Use the pre-computed velocity field as constant input and solve for the temperature using the built-in multiphysics solver
This two step solution process for a one-way coupled model allows significant savings in computational time and resources, by separating the equations and physics problems, and use the best and most efficient solver for each individual sub-problem.
This model is available as an automated tutorial by selecting Model Examples and Tutorials… > Multiphysics > Multi-Simulation Heat Exchanger from the File menu. Or alternatively, follow the video tutorial or step-by-step instructions linked below.