Modulations of the heat transfer across wind wave surfaces

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  • 風波下の高速表面水温計測による波面を通じた熱輸送の変調の解析
  • フウハ カ ノ コウソク ヒョウメン スイオン ケイソク ニ ヨル ハメン オ ツウジタ ネツ ユソウ ノ ヘンチョウ ノ カイセキ

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Abstract

High speed infrared imaging measurements were performed for identifying mechanical factors to govern surface skin temperatures on wind waves under moderate to strong winds. Surface renewals owing to turbulent disturbances are found to predominantly determine the skin temperature amplitude and phase lags to surface elevation, which is parameterized by a so-called wind-wave Reynolds number (RB). The modulations of the skin temperature variations are observed at RB ~ 4 × 104, indicating governing dynamics to produce surface turbulence is altered at the boundary.

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