EXAMINATION OF <i>k</i>-ε MODEL FOR THE APPLICATION TO THE DEEPENING OF SURFACE MIXED LAYER OF DI-TYPE ENTRAINIVLENT

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  • <i>k</i>-εモデルによるDI型連行現象の再現性について
  • k-εモデルによるDI型連行現象の再現性について
  • k - イプシロンモデル ニ ヨル DIガタ レンコウ ゲンショウ ノ サイゲ

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Abstract

It is fundamentally examined if k-ε model can reproduce the deepening of surface mixed layer with DI-type entrainment caused by wind induced shear flow in a water body of horizontally infinite. Numerical results are compared with theoretical and experimental evidences shown by existing studies. Major conclusions are as follows: k-ε model successfully reproduces the DI-type entrainment law which was previously proposed by Kranenburg. Velocity and density profiles in mixed layer agree very well with those obtained by a dynamic similarity theory. The coefficient of energy transfer from external work to potential energy agrees with a result obtained by Imberger et al..

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