Time-Dependent Visoelastic Flows: Instabilities and Wave Propagation

瞬态粘弹性流：不稳定性和波传播

• 批准号: 8813844
• 负责人: Antony Beris
• 金额: $ 19.91万
• 依托单位: University of Delaware
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-09-01 至 1992-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8813844&HistoricalAwards=false
• 关键词: Time; Dependent; Visoelastic; Flows; Instabilities

Theoretical and numerical studies are to be conducted on flows of viscoelastic fluids. These fluids are common in the processing of polymeric and other industrially important materials. The focus here is on the propagation of stress waves and the time evolution of instabilities. Rotational couette flow and flow through an extruder will serve as test cases for more accurate, numerically, stable, and efficient computational algorithms to be developed.

将对以下流动进行理论和数值研究： 粘弹性流体 这些流体通常用于处理 聚合物和其他工业上重要的材料。 这里的重点 是关于应力波的传播和 不稳定性 旋转Couette流动和通过挤出机的流动 将作为测试案例，以更准确，数字，稳定， 开发高效的计算算法。