filename : p_Sat03.pdf entry : inproceedings pages : 151-154 year : 2003 title : Core-Line-Based Vortex Hulls in Turbomachinery Flows author : Mie Sato, Ronald Peikert booktitle : Proceedings of Utsunomiya Visualization Symposium, 2003 editor : publisher : Journal of the Visualization Society of Japan language : English month : keywords : Vortex hulls, Vortex core lines, CFD analysis, Feature extraction, Feature-based visualization abstract : In today's CFD-assisted turbomachinery design, a primary objective is to minimize the effects of vortices. Their automatic identification, along with other flow structures, in numerical data is a current research topic. This paper presents a novel method to find vortex hulls in turbomachinery flows automatically. Based on a vortex core line that is the centerline of the vortex, the method is able to locate bent vortices and to distinguish adjacent vortices in the complex flows. We experiment with the method on several practical flow data sets from the field of turbomachinery.