S0502-6-3 自動車走行によって道路脇に生じる流れの模型実験([S0502-6]噴流,後流および剥離流れ現象の解明と制御(6))

概要

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The wind induced by an automobile is studied experimentally by using a hot-wire anemometer. Simplified automobile models which are similar to the Ahmed body with 25° and 35° slanted back are ran on the traveling slope. The ensemble averaged velocities were obtained at roadside area. The measured velocity profiles showed that the displaced flows around the vehicle nose are identical for both models, however the wake flows behind the models depend strongly on the slant angle. The trailing vortices behind the 25° slanted model travel outward on the road and induce higher velocity than 35° slanted model in the downstream roadside. The mirror-image of the longitudinal vortex is attributed to the lateral traveling of the trailing vortex.
一般社団法人日本機械学会の論文
2010-09-04