Cavitation in a Flowing Liquid

流动液体中的空化现象

• 批准号: 9523579
• 负责人: Daniel Joseph
• 金额: $ 3万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-08-15 至 1997-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9523579&HistoricalAwards=false
• 关键词: Cavitation; Flowing; Liquid

ABSTRACT CTS-9523579 A proof-of-concept study is proposed for a new approach to predict cavitation and outgassing in a moving fluid. The previously used threshold criterion based on pressure is replaced by one considering the principal stresses in a flowing fluid. Experiments and direct simulations will be conducted to verify the applicability of the proposed criterion in relatively simple devices. The pertinent information from literature will be reviewed from the perspective of this criterion. If successful, the new criterion will fundamentally change our understanding of cavitation and outgassing in flowing fluid, as well as the design methods of turbomachinery, hydraulic circuits, and various fluid flow facilities in industry. ***

摘要CTS-9523579 提出了一种新的方法来预测运动流体中的空化和放气的概念验证研究。 用考虑流动流体中主应力的阈值准则代替了以前使用的基于压力的阈值准则。 将进行实验和直接模拟，以验证所提出的标准在相对简单的设备的适用性。 将从该标准的角度对文献中的相关信息进行综述。 如果成功的话，新标准将从根本上改变我们对流动流体中空化和放气的理解，以及工业中泵、液压回路和各种流体流动设施的设计方法。 ***