Fan System Simulation with HyperMesh and AcuSolve Solutions

Fan system studies for automotive applications are based on a numerical process that aims to shorten development cycles and to offer engineers a reliable tool for design and analysis. Recent hardware and software progress allows conducting simulations intensively for real industrial cases, taking into account all the geometrical details of the equipment to study, and even the details of test benches on which they are qualified.

The simulation for fan design is among the virtual processes that require highly automated methods that provide to providing engineers with the means to rapidly predict the performances of a given geometry. The knowledge required to conduct such calculations is in fact embedded in a series of scripts and batches that produce automatically the mesh, apply the boundary conditions and start the calculation. After the convergence of the solution, a post-processing of global performances and local ​flow patterns ​is also automatically produced.

Tools from the Altair platform were used to test and assess the benefits of this fully automated process. Each step was clearly defined in order to have a chain that can be easily maintained and updated. AcuSolve was chosen to perform the fluid simulation, and some comparisons were conducted between meshes obtained either by AcuMesh or HyperMesh. This latter tool was especially chosen for its ability to produce meshes that can be exported to different codes. Some simulations were also conducted with the open source code Open-Foam, therefore validating the openness of the Altair platform.

In this presentation of this simulation process, the results are reported in terms of easiness of automation, mesh quality and accuracy of results obtained.


The Author

Manuel Henner
Bruno Demory
Serge Mondon
Ming Ma
Youssef Beddadi
Elias Tannoury
Valeo Thermal Systems