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Record Details

Record 4 of 41279
UFLIC: A Line Integral Convolution Algorithm for Visualizing Unsteady Flows
Author and Affiliation:
Shen, Han-Wei(MRJ Technology Solutions, Inc., Moffett Field, CA United States)
Kao, David L.(NASA Ames Research Center, Moffett Field, CA United States)
Chancellor, Marisa K. [Technical Monitor]
Abstract: This paper presents an algorithm, UFLIC (Unsteady Flow LIC), to visualize vector data in unsteady flow 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.
Publication Date: Aug 01, 1997
Document ID:
20020047555
(Acquired Jun 14, 2002)
Subject Category: FLUID MECHANICS AND THERMODYNAMICS
Document Type: Preprint
Meeting Information: IEEE Visualization '97 Conference; 19-24 Oct. 1997; Phoenix, AZ; United States
Contract/Grant/Task Num: NAS2-14303; RTOP 519-40-72
Financial Sponsor: NASA Ames Research Center; Moffett Field, CA United States
Organization Source: NASA Ames Research Center; Moffett Field, CA United States
MRJ Technology Solutions, Inc.; Moffett Field, CA United States
Description: 1p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: ALGORITHMS; COMPUTATIONAL FLUID DYNAMICS; UNSTEADY FLOW; FLOW DISTRIBUTION
Availability Source: Other Sources
Availability Notes: Abstract Only
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