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contributor authorWang, Jingbo
contributor authorFaltinsen, Odd M.
date accessioned2017-05-09T01:01:53Z
date available2017-05-09T01:01:53Z
date issued2013
identifier issn0892-7219
identifier otheromae_135_1_011101.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/152906
description abstractIn this paper, a nonlinear boundary element method (BEM) is developed for investigating air cavity formation during the highspeed water entry of wedges. A technique is proposed for dynamic regridding of free surface boundaries. This technique applies to both equally and nonequally spaced grids, and it is able to suppress the numerical instabilities encountered using a BEM for simulating free surface flows. The authors also develop a purely numerical method to simulate nonviscous flow separation, which occurs when the flow reaches the knuckle of the wedge. The present nonlinear BEM has been verified by comparisons with similarity solutions. We also compare numerical results with experimental results. Finally, we give a numerical prediction of the evolution of the cavity until the closure of the cavity, and the influence of the initial entry velocity, wedge mass, and deadrise angle on the characteristics of the transient cavities is investigated.
publisherThe American Society of Mechanical Engineers (ASME)
titleNumerical Investigation of Air Cavity Formation During the High Speed Vertical Water Entry of Wedges
typeJournal Paper
journal volume135
journal issue1
journal titleJournal of Offshore Mechanics and Arctic Engineering
identifier doi10.1115/1.4006760
journal fristpage11101
journal lastpage11101
identifier eissn1528-896X
treeJournal of Offshore Mechanics and Arctic Engineering:;2013:;volume( 135 ):;issue: 001
contenttypeFulltext


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