The more the bubble close to the free surface, the narrower the bottom jet develops crosswise, and the larger the pressure gradient, the rising velocity and the height of the bottom jet is upwards.
越靠近自由表面，底部射流横向发展越窄，而向上的压力梯度，气泡上升速度，底部射流上升高度越大，反之则反；
After reflection, the average particle velocity near free surface is equal to twice the piston velocity approximately, which agrees with macroscopic phenomena.
激波在自由面反射后，自由表面附近的粒子速度为活塞速度的二倍，这和宏观力学结果相同。
Considering the influence of the air on the velocity of flow, Volume of Fluids (VOF) method is used to track the free surface.
为考虑空气对水流流速的影响采用VOF方法追踪自由水面，并用施主—受主方法求解水体体积率控制方程。
The results show that the free settling velocity and the hindered settling rate of fine particles in water have increased after the mineral surface becam…
结果表明，矿粒表面疏水化后，在水中的自由沉降速度和干涉沉降速度均上升，这与理论分析结果相一致。
The results show that the free settling velocity and the hindered settling rate of fine particles in water have increased after the mineral surface becam…
结果表明，矿粒表面疏水化后，在水中的自由沉降速度和干涉沉降速度均上升，这与理论分析结果相一致。
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