熱工学コンファレンス講演論文集
Online ISSN : 2424-290X
2020
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複合的燃焼場における局所燃焼モードのデータ指向型解析
ヘルレン ジグジッド源 勇気玉置 千智店橋 護
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会議録・要旨集 認証あり

p. 0049-

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Moderate or Intense Low-oxygen dilution (MILD) combustion was studied by utilizing data driven techniques. It was found that MILD combustion yields relatively small scalar gradients whereas intense reaction zones were predominantly observed. This could be caused due to local ignition and flame interactions in the combustion field. Such zones are identified in direct numerical simulation (DNS) field with appropriate thresholding of scalar gradient and reaction rate. Then, a data driven model for predicting local combustion modes was proposed and validated for large eddy simulation (LES) context, using filtered DNS data at various filter sizes.

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