Experimental investigation of impact forces induced by plunging breakers on a vertical cylinder

Tai, Bing; Ma, Yuxiang; Niu, Xuyang; Dong, Guohai; Perlin, Marc

doi:10.1016/j.oceaneng.2019.106362

Cited by 23 publications

(1 citation statement)

References 27 publications

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“…If the pressure in the direction of 0° is taken as a reference, it will reduce to about 60% in the direction of 30°, 45% in the direction of 45°, 35% in the direction of 60°, and 30% in the direction of 90°. At the 30° position, the pressure measurement point is near the free surface, where the sloshing wave is easily breaking and then involves in a large number of air bubbles (Tai et al 2019), thus forming a negative pressure cavity. The minimum pressure at the 30° position is therefore significantly smaller than the others.…”

Section: B．spherical Tankmentioning

confidence: 99%

Fluid dynamics analysis of sloshing pressure distribution in storage vessels of different shapes

et al. 2019

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A series of numerical simulations were performed to investigate the influences of storage vessels shapes on sloshing dynamics under horizontal excitation by employing the open source code OpenFOAM, which has been extensively validated by experimental data for the sloshing flow problem. The results show that the membrane liquefied natural gas (LNG) tanks are subject to lower impact pressure than the cylindrical, rectangular and spherical tanks with the same volume of liquid and the overall tank dimensions, as the slope at the storage vessels bottom changes the flow direction of the liquid and therefore reduces the impact on the vertical wall. In the cylindrical and spherical tanks, higher impact pressure was found on the wall directly opposite to the excitation direction and the maximum impact point will shift away from the external excitation direction as the wave breaks up violently until a quasi-steady state of the sloshing wave rotating along the side wall is reached. The curved surface of the spherical tank could also help reduce the impact pressure when compared with the cylindrical tank.

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Section: B．spherical Tankmentioning

confidence: 99%