Experimental and Computational Studies of Complex Viscoelastic Flows

复杂粘弹性流的实验和计算研究

• 批准号: 9202130
• 负责人: Robert Armstrong
• 金额: --
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-09-01 至 1996-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9202130&HistoricalAwards=false
• 关键词: Experimental; Computational; Studies; Complex; Viscoelastic

Research will be conducted on the complex flow of viscoelastic fluids. The approach is through complementary use of experimental and numerical simulation techniques. The experimental part is based on rheological characterization, and also a combination of Laser-Doppler-Anemometer and fluid birefringence measurements. Numerical simulations are via finite element modeling using both differential and integral constitutive descriptions of the fluid. Polymeric material processing involves flow characteristics of complex fluids, and greatly improved modeling and predictive capabilities are required for reliable and realistic process design.

对粘弹性流体的复杂流动进行了研究 流体.该方法是通过补充使用 实验和数值模拟技术。的 实验部分基于流变学表征， 激光多普勒风速计和液体 双折射测量数值模拟通过 微分和积分结合的有限元建模 流体的本构描述。 聚合物材料加工涉及以下流动特性： 复杂的流体，并大大改善建模和预测 可靠和现实的过程需要能力 设计