文档介绍：第卷第期集美大学学报（自然科学版）
25 5 Guangzhou 510641, China)
Ａｂｓｔｒａｃｔ：
In order to study the ｃharaｃteristiｃ of slamming pressure on wedge during entering water, over-
lapping grid method was used to simulate the water entry proｃess. The slamming pressure of wedge at three dif-
ferent entry veloｃities was ｃalｃulated. Moreover, the numeriｃal simulation method was verified by ｃomparing
with the experimental result. In addition, by ｃhanging the water depth, the proｃess of wedge entering water with
finite depth was simulated to investigate the influenｃe of water depth on the surfaｃe pressure, falling speed and
free water surfaｃe. The results show that the water depth of shallow water will inｃrease the pressure on the
wedge. The shallower the water, the greater the pressure. The wall effeｃt also ｃauses the wedge to aｃｃelerate in
the opposite direｃtion of falling. The shallower the water, the greater the reverse aｃｃeleration. In addition, ｃom-
pared with infinite water depth, the free water surfaｃe will rise more signifiｃantly in shallow water.
Ｋｅｙｗｏｒｄｓ：
ｃomputational fluid dynamiｃs( CFD) ; 2D wedge; water entry; swallow water; water impaｃt
引言
0
船舶在高海况中航行时无可避免地会发生船体砰击对于大型船和高速船而言在快速航行过