| 液态Ga在石英玻璃表面的声致铺展行为 |
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| 引用本文： | 张茗瑄,马志鹏,于海洋,夏法锋,王德胜. 液态Ga在石英玻璃表面的声致铺展行为[J]. 焊接学报, 2022, 43(1): 67-72. DOI: 10.12073/j.hjxb.20210608002 |
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| 作者姓名： | 张茗瑄 马志鹏 于海洋 夏法锋 王德胜 |
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| 作者单位： | 1.东北石油大学, 大庆, 163318 |
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| 基金项目： | 国家自然科学基金资助项目(51674090,51674089)； |
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| 摘 要： | 研究超声波工具头作用于液态Ga表面时,液态Ga在石英玻璃表面的铺展行为,并通过Comsol Multiphysics软件对液态Ga的流动过程和压力变化情况进行模拟分析.?结果表明,液态Ga在铺展过程中初始阶段铺展缓慢,超声波作用时间为24?ms时液态Ga的铺展面积为2.754?cm2;超声波作用时间为72?ms时液态G...
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| 关 键 词： | 超声波 液态Ga 铺展 压力 |
| 收稿时间： | 2021-06-08 |
Research on acoustic spreading of liquid Ga on the surface of quartz glass |
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| Affiliation: | 1.Northeast Petroleum University, Daqing 163318, China2.China National Engineering Co., Ltd., Beijing, 100080, China |
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| Abstract: | This paper draws on the spreading behavior of liquid Ga on the surface of quartz glass when the ultrasonic horn acts on the surface of liquid Ga. The flow process and pressure change of liquid Ga was performed and analysis using Comsol Multiphysics software. The results show that the liquid Ga spreads slowly in the initial stage of the spreading process, and the spreading area of liquid Ga is 2.754 cm2 at 24 ms. The spreading area of liquid Ga increases to 5.459 cm2 at 72 ms over a short period of time. It reached an equilibrium state at 84 ms with a spreading area of 5.508 cm2. Obvious cavitation bubbles and ripples could be observed on the surface of liquid Ga during the spreading process. The internal pressure of liquid Ga changes in one cycle after ultrasound was applied. The top of liquid Ga is dominated by negative pressure, and the pressure increased to positive pressure along the radius to the center of the circle. The internal pressure of liquid Ga is dominating by positive pressure at 1.7 ms. The pressure amplitude at the surface of liquid Ga gradually decreases from top to bottom under the action of ultrasonic waves. Meanwhile, liquid Ga spreads under the combined action of internal pressure offset, Laplace pressure difference and “collapse effect”, final morphology changes significantly. |
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