Finite-Time Mass Separation for Comparative Visualizations of Inertial Particles
Günther T, Theisel H (2015)
Publication Type: Journal article
Publication year: 2015
Journal
Book Volume: 34
Pages Range: 471-480
Journal Issue: 3
DOI: 10.1111/cgf.12659
Abstract
(Figure Presented). The visual analysis of flows with inertial particle trajectories is a challenging problem because time-dependent particle trajectories additionally depend on mass, which gives rise to an infinite number of possible trajectories passing through every point in space-time. This paper presents an approach to a comparative visualization of the inertial particles' separation behavior. For this, we define the Finite-Time Mass Separation (FTMS), a scalar field that measures at each point in the domain how quickly inertial particles separate that were released from the same location but with slightly different mass. Extracting and visualizing the mass that induces the largest separation provides a simplified view on the critical masses. By using complementary coordinated views, we additionally visualize corresponding inertial particle trajectories in space-time by integral curves and surfaces. For a quantitative analysis, we plot Euclidean and arc length-based distances to a reference particle over time, which allows to observe the temporal evolution of separation events. We demonstrate our approach on a number of analytic and one real-world unsteady 2D field.
Authors with CRIS profile
Involved external institutions
Germany (DE)How to cite
APA:
Günther, T., & Theisel, H. (2015). Finite-Time Mass Separation for Comparative Visualizations of Inertial Particles. Computer Graphics Forum, 34(3), 471-480. https://dx.doi.org/10.1111/cgf.12659
MLA:
Günther, Tobias, and Holger Theisel. "Finite-Time Mass Separation for Comparative Visualizations of Inertial Particles." Computer Graphics Forum 34.3 (2015): 471-480.
BibTeX: Download