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A key approach to visualizing a flow field is to emphasize regions with significant behavior. However, it is difficult to give concrete criteria for classifying feature regions. In this paper, we use a novel framework in which fuzzy sets are used to determine flow features: Fuzzy relationships assess structural properties of features. A fuzzy c-means-like(More)
Existing techniques for animation of object fracture are based on an assumption that the object materials are homogeneous while most real world materials are heterogeneous. In this paper, we propose to use movable cellular automata (MCA) to simulate fracture phenomena on heterogeneous objects. The method is based on the discrete representation and inherits(More)
An adaptive sparse texture rendering method is proposed to solve for occlusion effects when visualizing 3D flows, building on an extensible fuzzy feature extraction approach. First, the flow feature is described by fuzzy theory and rules for some typical features are obtained. The significance value for each voxel is then calculated by a clustering method(More)
In the field of computational fluid dynamics (CFD), the upwind finite volume method (FVM) is widely applied to solve 3D flows with discontinuity phenomena (e.g., shock waves). It produces unstructured data at the center of each cell (cell-centered data) with the flow disconti-nuity constraint on the inner-face between face-neighboring cells. For(More)
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