QUANTITY OF SPRAY TRANSPORTED BY STRONG WIND OVER BREAKING WAVES

Nobuhiro Matsunaga, Misao Hashida, Hiroyuki Mizui, Yuji Sugihara

Abstract


The quantity of spray transported by strong wind has been measured experimentally when the wind blows over waves propagating on a sloping bed. The leeward variation of spray concentration is much smaller than that in the vertical direction because of the quasi uniform supply of spray from the water surface. In the theoretical development, therefore, the balance has been analyzed between the upward flux of the concentration by turbulent diffusion and the downward flux due to the spray precipitation. Three characteristic quantities introduced in the analysis have been obtained by superposing the experimental data on the theoretical solutions. They are related to the wave and wind parameters to predict quantitatively the spray concentration supplied from sea to shore.

Keywords


breaking waves; spray; wind

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