Preprocessed visualization of large scale unsteady flow simulations |
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Authors: | S. Teramoto K. Fujii |
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Affiliation: | (1) Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, 1206 West Green Street, Urbana, IL 61801, USA;(2) Mechanical and Aerospace Engineering Department, The University of Texas at Arlington, Box 19018, Arlington, TX 76019, USA;(3) Department of Aerospace Engineering, University of Illinois at Urbana-Champaign, 104 South Wright Street, Urbana, IL 61801, USA |
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Abstract: | In some cases, conventional CFD visualization techniques do not give us sufficient information of the flowfield, especially when the flowfield is unsteady, and there is a need for a new postprocessing technique. In the present paper, one of such new post-processing techniques is proposed. In the present technique, raw result of CFD simulation is pre-processed by frequency filters, and then processed secondary data set is visualized. The idea is applied to two examples. The examples show that the present method visualizes each frequency mode separately, and gives clear view of the temporal variation of the whole flowfield. The results indicate that the present method improves the understandings of the flow mechanism. |
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