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Title
Japanese:細分化格子LBMに基づくLESの複数GPUによる自転車のロードレースの空力計算 
English: 
Author
Japanese: 長谷川雄太, 青木尊之, 小林宏充.  
English: Yuta Hasegawa, TAKAYUKI AOKI, Hiromichi Kobayashi.  
Language Japanese 
Journal/Book name
Japanese: 
English: 
Volume, Number, Page        
Published date May 30, 2019 
Publisher
Japanese: 
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Conference name
Japanese:第24回計算工学講演会 
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Conference site
Japanese: 
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Abstract We impement and perform a large-scale LES simulation for aerodynamics on a road racing of bicycles. The mesh-refined lattice Boltzmann method with coherent-structure Smagorinsky model is employed to perform a multi-GPU computing. The validation on alone running or group running of 4 cyclists had a good agreement with previous experiments or CFD simulations. The aerodynamics simulation on the group of 72 cyclists is performed as the benchmark of the largest-scale simulation, and it took 4 days using 192 GPUs. The computational resources for the simulations were enough reasonable to run the application studies.

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