A Computationally Efficient Approach to the Lagrangian Modeling of Bubbling Beds

鼓泡床拉格朗日建模的高效计算方法

• 批准号: 0226010
• 负责人: Christine Hrenya
• 金额: $ 10万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-11-01 至 2004-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0226010&HistoricalAwards=false
• 关键词: Computationally; Efficient; Approach; Lagrangian; Modeling

Proposal Number: CTS-0226010Principal Investigator: Hrenya, Christine MInstitution: University of Colorado - BoulderTitle: A Computationally Efficient Approach to the Lagrangian Modeling of Bubbling BedsThis proposal is based on the assumption that there are valid scaling laws where a large bubbling fluidized bed, typical of industrial applications, can be scaled down to a bed with fewer particles? based on this assumption, the PI proposes to using these scaling laws to simulate an equivalent system with fewer particles and thus save significant computational cost which is typically proportional to the number of particles in a Lagrangian-Eulerian approach. Lagrangian simulations have several advantages and will be a very powerful tool in realistically modeling particulate flows if it is made computationally more tractable. The objectives of this work are to verify the existence of such a scaling or 'similitude' by experiments and numerical simulations and to develop an appropriate numerical scheme for Eulerian-Lagrangian simulations.

建议编号：CTS-0226010主要研究员：Hrenya，Christine MInstitution：科罗拉多大学博尔德分校标题：一种计算高效的鼓泡床拉格朗日建模方法该建议基于以下假设：存在有效的比例定律，其中大型鼓泡床(工业应用中的典型应用)可以缩小到含有更少颗粒的床？基于这一假设，PI建议使用这些标度律来模拟具有较少粒子的等效系统，从而节省大量的计算代价，而在拉格朗日-欧拉方法中，计算代价通常与粒子数目成正比。拉格朗日模拟有几个优点，如果在计算上更容易处理，它将成为现实地模拟颗粒流的一个非常强大的工具。这项工作的目的是通过实验和数值模拟来验证这种标度或“相似”的存在，并为欧拉-拉格朗日模拟发展一种合适的数值格式。