Visualization Symposium, IEEE Pacific (2014)
Yokohama, Japan Japan
Mar. 4, 2014 to Mar. 7, 2014
Allen R. Sanderson , Sci. Comput. & Imaging Inst., Univ. of Utah, Salt Lake City, UT, USA
Lagrangian coherent structures are time-evolving surfaces that highlight areas in flow fields where neighboring advected particles diverge or converge. The detection and understanding of such structures is an important part of many applications such as in oceanography where there is a need to predict the dispersion of oil and other materials in the ocean. One of the most widely used tools for revealing Lagrangian coherent structures has been to calculate the finite-time Lyapunov exponents, whose maximal values appear as ridgelines to reveal Lagrangian coherent structures. In this paper we explore an alternative formulation of Lyapunov exponents for computing Lagrangian coherent structures.
Euclidean distance, Rivers, Sea measurements, Atmospheric measurements, Particle measurements, Tides,Lyapunov exponents, computational fluid dynamics, flow field visualization, Lagrangian coherent structures
Allen R. Sanderson, "An Alternative Formulation of Lyapunov Exponents for Computing Lagrangian Coherent Structures", Visualization Symposium, IEEE Pacific, vol. 00, no. , pp. 277-280, 2014, doi:10.1109/PacificVis.2014.27