Based on hydrostatics, a computer program is developed to calculate accurately the influence of free surface on righting arm curve, which can calcul ate rapidly and accurately the inclining moments caused by the movement of free surface in the arbitary shape of liquid tank at any loading rate and at any trim angle.

This paper puts forward one calculation method for the pre-cooling temperature of spherical cargo tank for MOSS type LNG carrier.

In order to improve the compution efficiency and the precision at the boundaries of the original VOF method when simulating the sloshing on prismatic tanks, the partial cell parameter is introduced to improve the original VOF method in the paper.

By the use of this improved VOF method the liguid sloshing on the prismatic tank model is simulated numerically with different filling levels and rolling periods.

Under the effect of electromagnetic field with low frequency, the evolutions of sump shape, surface quality and microstructures of as-cast 7075 alloy ingot produced by CREM process with electromagnetic intensity have been experimentally investigated.

Investigates the sump shape,contact level between melt and mould,forming position of initial solidified shell and depth of sump of 6063 Al-alloy during the semi-continuous casting with air film used.