Abstract
The mechanism of tire whirls which can result in huge damage in a large tire is not filly understood. The object of this paper is to reproduce tire whirls in the numerical simulation, in order to investigate tire whirls mechanism. FDS (Fire Dynamics Simulator) was employed for this simulation. And experimental research of outdoor fire whirls by Sekimoto and Kuwana was considered for numerical test cases. Two types of experimental conditions were set in FDS; one has L-shaped fire source, the other one has screen walls near fire source. Numerical simulation shows flame rising high in occasionally. Detailed investigation is a next issue.
