Abstract

A numerical simulation system for motorcycles was constructed aiming at predicting aerodynamic-characteristics of the bodies at the early stage of development. In order to shorten the time for constructing a complete model of a motorcycle, which have fairly complicated shapes, and to generate meshes on the model as quickly as possible, an orthogonal mesh with porosity for each cell was adopted. An evaluation of this system regarding accuracy and time needed for analysis was carried out by applying the system to some motorcycles actually under development. As a result, we found that a sufficient level of accuracy was obtained in predicting aero resistance forces and wind protection performances.

References

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2. (2) Carlo Fabio, Numerical Investigation on the Fender of a Motorcycle, SAE 970412
3. (3) Himeno, R., Fujitani, F., Tanaka, H., A Study of Aerodynamic Characteristics of a Production Car Using a Finite Difference Analysis of Flows, JSAE Proceedings 901, 1990
4. (4) Takeuchi, T., Kohri, I., Development of Truck and Bus Aerodynamics Using Computational Fluid Dynamics, JSAE Proceedings 964 p.49 – 52, 1996

Author (organization or company)

• Takashi WATANABE（Asaka R&D Center）
• Takefumi OKUBO（Asaka R&D Center）
• Mutsumi IWASA（Asaka R&D Center）
• Hiroyuki AOKI（Asaka R&D Center）

Publication Information

Article of Honda R&D Technical Review Vol.13 No.2 (213 - 218)

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Citation Information