Physics of Filtration in a Rotating Filter Separator

本文将研究CTS-9613835 R.Lueptow西北大学旋转过滤分离器圆柱面附近的颗粒运动和浓度，并在此基础上更好地评价其防堵机理和过滤性能。颗粒跟踪测速和视频成像将提供泰勒涡和剪切流在减少孔隙堵塞方面的作用的信息。微观和宏观建模将提供放大结果的框架。分析了颗粒密度、颗粒大小和浓度的影响，以及过滤器转速的影响。预计将确定关键参数，如颗粒与孔径之间的比率，以实现最佳性能。这些结果将有助于旋转过滤器分离器的设计和实验室数据的放大，以及与生物工程特别相关的过滤性能的提高。

Abstract CTS-9613835 R. Lueptow Northwestern University Particle motion and concentration in the proximity of the cylindrical surface of a rotating filter separator will be investigated, ond on this basis the anti-plugging mechanisms and filtration performance will be better evaluated. Particle Tracking Velocimetry and video imaging will give information on the role of Taylor vortices and shear flow in reducing the pore plugging. Microscopic and macroscopic modeling will provide the framework to scale-up the results. The effects of particle density, size and concentration, as well as the influence of the filter rotational speed, will be analyzed. Critical parameters, such as the ratio between the particle and pore size for optimum performance, are expected to be determined. The results will be useful for the design of rotating filter separators and scale-up of laboratory data, as well as for enhancement of filtration performance with particular relevance to bioengineering.