A Computationally Efficient Approach to the Lagrangian Modeling of Bubbling Beds

提案编号：CTS-0226010首席研究员：Hrenya，克莉丝汀，M机构：科罗拉多大学-博尔德分校标题：一种有效的计算方法来拉格朗日模型的鼓泡床这一建议是基于这样的假设，即有有效的比例定律，其中一个大的鼓泡流化床，典型的工业应用，可以按比例缩小到一个床与更少的颗粒？ 基于这一假设，PI提出使用这些标度律来模拟具有较少粒子的等效系统，从而节省显著的计算成本，这通常与拉格朗日-欧拉方法中的粒子数成比例。 拉格朗日模拟有几个优点，将是一个非常强大的工具，在逼真的模拟颗粒流，如果它是计算上更容易处理。 这项工作的目标是验证存在这样的缩放或“相似”的实验和数值模拟，并制定一个适当的数值方案欧拉-拉格朗日模拟。

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.