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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Published in:2008 IEEE Pacific Visualization Symposium pp. 63 - 70
Main Authors: Shi, Kuangyu, Theisel, Holger, Weinkauf, Tino, Hege, Hans-Christian, Seidel, Hans-Peter
Format: Conference Proceeding
Language:English
Published: IEEE 01.03.2008
Subjects:
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
Online Access:Get full text
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Abstract 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.
AbstractList 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.
Author Seidel, Hans-Peter
Shi, Kuangyu
Weinkauf, Tino
Hege, Hans-Christian
Theisel, Holger
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  givenname: Kuangyu
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  givenname: Holger
  surname: Theisel
  fullname: Theisel, Holger
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  givenname: Tino
  surname: Weinkauf
  fullname: Weinkauf, Tino
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  organization: Zuse Institute Berlin
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  givenname: Hans-Christian
  surname: Hege
  fullname: Hege, Hans-Christian
  email: hege@zib.de
  organization: Zuse Institute Berlin
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  givenname: Hans-Peter
  surname: Seidel
  fullname: Seidel, Hans-Peter
  email: hpseidel@mpi-inf.mpg.de
  organization: MPI Informatik
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Snippet Modern experimental and computational fluid mechanics are increasingly concerned with the structure nature of fluid motion. Recent research has highlighted the...
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StartPage 63
SubjectTerms 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
Title Finite-Time Transport Structures of Flow Fields
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