On The Unsteady Aerodynamics Of Road Vehicles In The Dynamic Motions

Tsubokura, Makoto and Cheng, See Yuan and Okada, Yoshihiro and Nakashima, Takuji and Nouzawa, Takahide and Kobayashi, Toshiyuki (2012) On The Unsteady Aerodynamics Of Road Vehicles In The Dynamic Motions. In: 9th International ERCOFTAC Symposium On Engineering Turbulence Modelling And Measurements, 6 - 8 June 2012, Thessaloniki, Greece.


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Unsteady aerodynamics of road vehicles in dy-namic pitching motion were investigated by numerical analysis. Dynamic coupling simulation of flow and vehicle motion was realized based on a large eddy simulation (LES) technique with moving boundary methods. Fully unstructured finite volume code previously developed was implemented for the road vehicle aerodynamics. Arbitrary Lagrangean-Eulerian (ALE) method was employed to handle vehicle’s ro-tating motion, particularly the dynamic pitching. This vehicle motion type is chosen because of the unsteady aerodynamics are expected to be crucial in regards to the comfort of passenger. By using the numerical simulation, a method to estimate the vehicle’s aerodynamic damping was proposed.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Dynamic pitching, Dynamic coupling simulation, Large eddy simulation (LES)
Divisions: Faculty of Mechanical Engineering > Department of Thermal Fluids
Depositing User: Dr. See Yuan Cheng
Date Deposited: 27 Jan 2014 03:15
Last Modified: 05 Jul 2021 16:02
URI: http://eprints.utem.edu.my/id/eprint/10482
Statistic Details: View Download Statistic

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