Visualization and comparison of simulation results in computational fluid dynamics

Wolfgang Felger; Peter Astheimer

doi:10.1117/12.44398

1 June 1991 Visualization and comparison of simulation results in computational fluid dynamics

Wolfgang Felger, Peter Astheimer

Proceedings Volume 1459, Extracting Meaning from Complex Data: Processing, Display, Interaction II; (1991) https://doi.org/10.1117/12.44398
Event: Electronic Imaging '91, 1991, San Jose, CA, United States

Abstract

Current visualization systems give little or no support for user interaction when investigating data and comparing simulation results. If a simulation produces a sequence of images, it is difficult to compare the frames in mind. However, such a comparison is of great importance to the simulation analyst, in order to find out correlation in data, especially in non-consecutive data records. Thus, it is essential to present two or more data records (represented by static images) in a comparable manner. Comparison can be achieved with static techniques, or emphasized with the help of animation tools. There exist several techniques concerning the presentation and merging of data records to be compared. A comparison can operate on complete data records as well as on selected subareas. For the detailed analysis of the simulation, graphical representations like color coding are often too unprecise; an identification of image areas should return the exact values of related data (i.e., take a data probe). In this paper, the authors investigate comparison and identification techniques in the visualization process. A prototype realizing such techniques is presented. The evaluation and verification of several techniques is accomplished with a case study, a 2D simulation in computational fluid dynamics, investigating the time-dependent flow in a rotating channel (e.g., fuel supply for a jet-powered helicopter rotor).

Citation Download Citation

Wolfgang Felger and Peter Astheimer "Visualization and comparison of simulation results in computational fluid dynamics", Proc. SPIE 1459, Extracting Meaning from Complex Data: Processing, Display, Interaction II, (1 June 1991); https://doi.org/10.1117/12.44398

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