Author(s): Iehisa Nezu; Tadanobu Nakayama
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Abstract: The turbulence fields on both sides of an air-water interface were examined experimentally in wind-water tunnel. The turbulence quantities in the air behave similarly to those in flows over flat plates in open-channels. As for the water side, wave component and turbulence component were separated by a spectral separation method. Turbulence component has universal characteristics on a 2-D gravity wave. It became clear that turbulent structure and energy budget on both sides are closely related with each other and also that energy transfer through the air-water interface increases when the wind becomes larger.
Year: 1999