UFLIC: a line integral convolution algorithm for visualizing unsteady flows

This paper presents an algorithm, UFLIC (Unsteady Flow LIC), to visualize vectordata in unsteadyflow fields. Using the Line Integral Convolution (LIC) as the underlying method, a new convolution algorithm is proposed that can effectively trace the flow’s global features over time. The new algorithm consists of a time-accurate value depositing scheme and a successive feed-forward method. The value depositing scheme accurately models the flow advection, and the successive feed-forward method maintains the coherence between animation frames. Our new algorithm can produce time-accurate, highly coherent flow animations to highlight global features in unsteady flow fields. CFD scientists, for the first time, are able to visualize unsteady surface flows using our algorithm. CR Categories and Subject Descriptors: I.3.3 [Computer Graphics]: Picture/Image Generation ; I.3.6 [Computer Graphics]: Methodology and Techniques; I.4.3 [Image Processing]: Enhancement.

• Type: Conference
• Year: 1997
• Where: VISUALIZATION
• Authors: Han-Wei Shen, David L. Kao
• Keywords: Successive Feed-forward Method, Unsteady Flow LIC, Value Depositing Scheme, Visualization, VISUALIZATION 1997