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Many of Honda cars are designed in the Honda Automobile Research & Development Center located in Tochigi, Japan. This facility houses state-of-the-art research equipments: a car-to-car crash test, a proving ground (with a road of Belgian brick!), wind tunnels, etc.
But prior to all these physical tests, Honda Engineers perform and analyze CFD computations on external aerodynamics of the car body, as well as aero-thermal computations of the underhood: radiator fans, flow around engine bay/peripherals, exhaust system, etc.
All these computations require a high level of accuracy from the software used and a fast turnaround time. The product has to be mature and robust enough to meet industrial expectations.
When we switched to HEXPRESS/Hybrid, we divided by 3 our CPU time, while the engineering time dropped to 30 mins/mesh.
Dr.Takiguchi, 11 Development division, Chief Engineer at Honda Automobile R&D Center.
CPU TIME REDUCTION & EASE-OF-USE
“We massively invested in NUMECA solutions more than 2 years ago, and are very satisfied with the level of precision they provide us.“, says Dr.Takiguchi, 11 Development division, Chief Engineer at Honda Automobile R&D Center. “We previously used various other commercial meshing tools, but were not satisfied by the quality of the viscous layers which many times led to divergence.
Moreover, the learning curve was cumbersome. When we switched to HEXPRESS/Hybrid, we not only solved these issues, but also divided by 3 our CPU time, while the engineering time dropped to 30 mins/mesh.
Thanks to HEXPRESS/Hybrid’s speed, the reduced turnaround time allows my team to explore more designs in a shorter amount of time. This tool is easy to get started with; my engineers are quickly able to deliver results".
Overview of the mesh engine’s complexity
Contra-rotating radiator fans
Mesh without the car body
"Furthermore, the service and technical support provided by NUMECA Japan meet our highest professional expectations. NUMECA experts interacted closely with us to understand our specific needs and proposed dedicated solutions, all the way from support to custom developments."
Under the hood flow