Publication Type |
Journal Article |
School or College |
College of Engineering |
Department |
Computing, School of |
Creator |
Hansen, Charles D. |
Other Author |
Brownlee, Carson; Pegoraro, Vincent; Shankar, Siddharth; McCormick, Patrick |
Title |
Physically-based interactive schlieren flow visualization |
Date |
2010-03 |
Description |
Understanding fluid flow is a difficult problem and of increasing importance as computational fluid dynamics produces an abundance of simulation data. Experimental flow analysis has employed techniques such as shadowgraph and schlieren imaging for centuries which allow empirical observation of inhomogeneous flows. Shadowgraphs provide an intuitive way of looking at small changes in flow dynamics through caustic effects while schlieren cutoffs introduce an intensity gradation for observing large scale directional changes in the flow. The combination of these shading effects provides an informative global analysis of overall fluid flow. Computational solutions for these methods have proven too complex until recently due to the fundamental physical interaction of light refracting through the flow field. In this paper, we introduce a novel method to simulate the refraction of light to generate synthetic shadowgraphs and schlieren images of time-varying scalar fields derived from computational fluid dynamics (CFD) data. Our method computes physically accurate schlieren and shadowgraph images at interactive rates by utilizing a combination of GPGPU programming, acceleration methods, and data-dependent probabilistic schlieren cutoffs. Results comparing this method to previous schlieren approximations are presented. |
Type |
Text |
Publisher |
Institute of Electrical and Electronics Engineers (IEEE) |
First Page |
145 |
Last Page |
152 |
DOI |
10.1109/PACIFICVIS.2010.5429599 |
Language |
eng |
Conference Title |
2010 IEEE Pacific Visualization Symposium (PacificVis 2010); ; Taipei |
Bibliographic Citation |
Brownlee, C., Pegoraro, V., Shankar, S., McCormick, P., & Hansen, C. D. (2010). Physically-based interactive schlieren flow visualization. IEEE Pacific Visualization, 145-52. |
Rights Management |
(c) 2010 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. |
Format Medium |
application/pdf |
Format Extent |
923,210 bytes |
Identifier |
ir-main,14622 |
ARK |
ark:/87278/s6g457sb |
Setname |
ir_uspace |
ID |
706079 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6g457sb |