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The effect of entrained air in violent water wave impacts. (English) Zbl 0888.76077
The effects of entrained air in cushioning water impact on a wall are estimated by using a flow which has many similarities to the severe flip-through impacts that have been identified for water waves hitting a vertical wall. This is a filling flow which rapidly fills a confined region, such as a crack between blocks, or the space beneath a deck projecting from the coast. This work extends the study of filling flows to the case where the filling liquid is an air-water mixture, thus giving explicit results for the reduction of peak pressure due to the compressibility of entrained air.

MSC:
76N10 Existence, uniqueness, and regularity theory for compressible fluids and gas dynamics
86A05 Hydrology, hydrography, oceanography
86A10 Meteorology and atmospheric physics
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