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模拟和实验研究超声波化对水力动力学行为和诱导侵蚀特征的模拟和实验研究
Chenwei Dai1, Xingwang Chen1, Qing Miao1
1School of Mechanical Engineering, Suzhou University of Science and Technology, Suzhou 215009, PR China.
Ultrasonics
|October 14, 2025
概括
这项研究以数值和实验方式研究了用于材料表面修饰的超声波化. 像振幅和频率这样的关键参数显著影响了化气泡分布,压力和合金侵蚀.
科学领域:
- 材料科学 材料科学 材料科学
- 流体动力学 流体动力学
- 声学 声学 在声学方面
背景情况:
- 超声波化对于表面修饰至关重要,产生微喷气和冲击波.
- 关于单个泡崩的现有研究是广泛的,但全球流体行为需要更多的研究.
研究的目的:
- 通过数值建模超声波化,并检查振幅,频率和阻隔距离对气泡分布和压力的影响.
- 通过研究合金上的化侵蚀来实验验验证该模型.
主要方法:
- 超声波化动态的数值建模.
- 使用自主开发的超声波振动装置进行实验调查.
- 分析表面形态和粗度用于洞穴侵蚀评估.
主要成果:
- 化气泡集中在工具附近,峰值压力为4.22 MPa在1毫米的对峙距离.
- 超声波振幅的增加增强了压力,蒸汽体积分数和表面粗度,改变了侵蚀模式.
- 对峙距离极大地影响蒸汽体积分数和侵蚀严重程度,最大侵蚀在0.5毫米.
结论:
- 模拟和实验结果显示强烈一致,阐明了超声波化侵蚀机制.
- 这些发现丰富了超声波化基本理论.
- 提供了使用超声波化进行材料改造的理论支持.
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