J0550401 DNSデータを用いた乱流燃焼場における局所流速の模擬PIV計測

DOI Web Site

書誌事項

タイトル別名
  • J0550401 Simulated PIV measurement of the local flow velocity in turbulent combustion using DNS data

抄録

It is necessary for the control of turbulent combustion to investigate the local flame structure and combustion properties. However, the detailed local flame structure has yet to be elucidated. Local flow velocity are necessary to evaluate flame stretch rate and strain rate in relation to the flame structure. The evaluation methods of these properties are different in numerical and experimental analyses: in the numerical analyses, direct numerical simulation (DNS) is used, while in the experimental analyses, visualization techniques are needed. Therefore, it is difficult to compare the results obtained from both techniques and to evaluate quantitative relationships. In this study, the differences between the experimental and numerical analyses on local flow velocity were investigated. The Particle Image Velocimetry (PIV) analysis was performed with the DNS data of hydrogen/air turbulent premixed flames. As a result, the vector map and probability density function (PDF) of the local flow velocity obtained from simulated PIV system is in good agreement with those from DNS.

収録刊行物

  • 年次大会

    年次大会 2015 (0), _J0550401--_J0550401-, 2015

    一般社団法人 日本機械学会

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ