When a product is designed in a current digital engineering world, each disciple, whether structural, thermal, electrical, electro-magnetic, acoustic, and so on is often simulated separately. The ideal scenario is to simulate all of the physics at once. However, each discipline requires in-depth understanding of its own discipline and simulation approaches. On top of that, some of the discipline such like Computational Fluid Dynamics (CFD) takes very long time to compute compared to other disciplines. These two situations make the use of CFD still challenging for massive parametric study, not to mention multidisciplinary parametric or optimization study, in a practical sense.
In this presentation, a solution which can contribute to a drastic time reduction in performing such massive parametric and multidisciplinary optimization study is introduced by utilizing Reduced Order Model (ROM) from CFD simulation. 3D CFD software has a function called HeatPathView which automatically creates a thermal network model from a 3D CFD simulation. This was originally developed to help engineers visualize the heat paths between components along with thermal resistances in a diagraph for a quicker and intuitive post-processing.
The newly developed capability allows this thermal network model along with parts specifications and thermal resistance information are easily transferred to MapleSim, the 1D multi-domain simulation program, to further perform the parametric and/or multidisciplinary study. This allows engineers to perform much quicker parametric or optimization study considering CFD or even considering multi-domains without manually creating a thermal network model which requires significant amount of modeling skills.