OPTIMIZATION OF MODEL COEFFICIENTS FOR DIFFERENT CONFIGURATIONS AND DENSITIES OF CAR MOLDS

DOI Web Site 2 Citations 16 References
  • TABATA Yuichi
    Technical Research Institute, Obayashi Co., Ltd., M. Eng.
  • MOCHIDA Akashi
    Prof., Graduate School of Eng., Tohoku University, Dr. Eng.
  • KONNO Naoko
    Graduate Student, Graduate School of Eng., Tohoku University
  • KIKUCHI Aya
    Environment & Energy Engineering Department, Takenaka Corporation, M. Eng.
  • MARUYAMA Takashi
    Assoc. Prof., Disaster Prevention Research Institute, Kyoto University, Dr. Eng.
  • HAGISHIMA Aya
    Assoc. Prof., Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Dr. Eng.
  • TANIMOTO Jun
    Prof., Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Dr. Eng.

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Other Title
  • 自動車の形状・密度を変化させた場合のモデル係数の最適値の変化
  • ジドウシャ ノ ケイジョウ ミツド オ ヘンカ サセタ バアイ ノ モデル ケイスウ ノ サイテキチ ノ ヘンカ ソウコウ スル ジドウシャグン ノ リュウタイ リキガクテキ コウカ オ サイゲン スル タメ ノ CFD モデル ノ カイハツ ソノ 1
  • Development of CFD model for reproducing aerodynamic effects of moving automobiles (Part 1)
  • 走行する自動車群の流体力学的効果を再現するためのCFD モデルの開発（その1）

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Abstract

The aim of this study is to develop a simulation method for predicting the wind environment and turbulent diffusion process, which are affected by moving automobiles within the real situation of urban street canyon. In this study, a simulation method to reproduce the aerodynamic effects generated from the moving automobiles based on the methodology of canopy models, namely ‘Vehicle Canopy Model’, was developed. Furthermore, a series of wind tunnel measurements of flow over car-shaped roughness elements and the drag forces caused by the roughness with different configurations and densities were carried out. By comparing the results of CFD predictions of the developed ‘Vehicle Canopy Model’ with experimental data, the accuracy of the developed model was examined.

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