PRC Supplement: Stability of Flow Between Rotating EccentricCylinders

PRC补充：旋转偏心缸之间的流动稳定性

• 批准号: 8619048
• 负责人: Andras Szeri
• 金额: $ 15.61万
• 依托单位: University of Pittsburgh
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-03-01 至 1990-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8619048&HistoricalAwards=false
• 关键词: PRC; Supplement; Stability; Flow; Between

The main thrust of this proposal is to study the flow between rotating eccentric cylinders. It is expected that the results will contribute to a better understanding of the operating conditions of journal bearings working around the transitional point. Current experimental and theoretical knowledge of flow between eccentric rotating cylinders is limited, and a numerical study, as proposed, is probably the right way to go at this point. Especially if the various operating parameters, i.e. Reynolds number, radius ratio, eccentricity, non-isothermal behavior, temperature dependent viscosity, end-wall effects, etc., are to be investigated with an ultimate goal of determining better design criteria. The approach proposed here is mathematically sophisticated, but practical, well-thoughtout, and appropriate for the task at hand. Support is recommended.

这项建议的主要目的是研究旋转之间的流动 偏心圆筒 预计这些成果将有助于 更好地了解滑动轴承的运行条件 在过渡点附近工作。 目前的实验和 偏心旋转圆柱体之间流动的理论知识， 有限的，和数值研究，如建议，可能是正确的方式 现在要去哪里 特别是如果各种操作参数， 即雷诺数、半径比、偏心率、非等温 行为、温度依赖性粘度、端壁效应等，是 最终目标是确定更好的设计 的搜索. 这里提出的方法在数学上是复杂的， 但实际、深思熟虑、适合手头的任务。 建议提供支持。