通过实验研究与数值模拟方法,研究氩气泡在静止非透明金属流体GaInSn中的上升运动. 实验研究使用超声多普勒测速仪测量气泡上升速度. 数值模拟使用湍流两方程模型,采用VOF方法进行界面捕捉. 气泡上升速度的实验结果和数值模拟结果符合较好. 大气泡在液态金属中的上升运动为小幅度水平方向振荡上升.
Liquid metal is an important energy transport carrier in nuclear fusion reactor, accelerator-driven sub critical system, spallation neutron source device, etc. The liquid metal flow velocity measurement is very important for the safe operation of these devices. Through experiments and numerical simulation, we study the gas bubble ascending motion in the static non-transparent liquid metal GaInSn. Numerical simulation method uses the turbulent two-equation model and VOF method for interface capturing. The experimental results are in good agreement with numerical simulation results. The large bubble oscillates in liquid metal with small amplitude in horizontal direction.
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