Finite-Time Transport Structures of Flow Fields

Modern experimental and computational fluid mechanics are increasingly concerned with the structure nature of fluid motion. Recent research has highlighted the analysis of one transport structure which is called Lagrangian coherent structure. However, the quantity nature of the flow transport is sti...

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Vydáno v:2008 IEEE Pacific Visualization Symposium s. 63 - 70
Hlavní autoři: Shi, Kuangyu, Theisel, Holger, Weinkauf, Tino, Hege, Hans-Christian, Seidel, Hans-Peter
Médium: Konferenční příspěvek
Jazyk:angličtina
Vydáno: IEEE 01.03.2008
Témata:
Computer Science
Convolution
Data visualization
Datalogi
Feature extraction
I.3.8 [Computing Methodologies]: Computer Graphics-Applications
Lagrangian functions
Modems
Noise generators
Sampling methods
SRA - E-Science (SeRC)
SRA - E-vetenskap (SeRC)
Testing
Topology
ISBN:1424419662, 9781424419661
ISSN:2165-8765
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Shrnutí:Modern experimental and computational fluid mechanics are increasingly concerned with the structure nature of fluid motion. Recent research has highlighted the analysis of one transport structure which is called Lagrangian coherent structure. However, the quantity nature of the flow transport is still unclear. In this paper, we focus on the transport characteristics of physical quantities and propose an approach to visualize the finite-time transport structure of quantity advection. This is similar to an integral convolution over a scalar field along path-lines of a flow field. Applied to a well-chosen set of physical quantity fields this yields structures giving insights into the dynamical processes of the underlying flow. We demonstrate our approach on a number of test data sets.
ISBN:1424419662
9781424419661
ISSN:2165-8765
DOI:10.1109/PACIFICVIS.2008.4475460