Abstract

This paper concisely reviews some large-scale submarine mass movements and their consequences highlighting the importance of submarine liquefied flows, and presents the essence of the theory and analytical framework developed of the submarine liquefied flow dynamics together with their experimental and field validations. It elucidates the crucial role of the two-phase physics in flow stratification, deceleration and re-deposition as well as in the formation of scarps and terrace in submarine liquefied flows. The developed analytical framework is widely applicable for predicting and assessing the large-scale sediment flows and evaluating their impact and influence on tsunami and the stability of coastal/offshore structures.

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