Feature-Based Analysis and Comparison of Coherent Structures in Parameter-Dependent Flows
In this projects methods are developed for extraction of coherent structures or dominant features in complex turbulent, time-dependent flows. Since flow fields are inherently noisy, robust methods are needed. A special focus is put on parameter-dependent fields. These parameters can be flow parameters such as actuation, or model parameters like the shape of the boundaries that influence the flow. New feature based methods for comparing flow fields shall also be developed. For this measures to compare the different structures are investigated. Those techniques will be integrated into a virtual lab.
Publikationen
2019
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2008
2019 |
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Steffen Oeltze-Jaffra, Monique Meuschke, Mathias Neugebauer, Sylvia Saalfeld, Kai Lawonn, Gabor Janiga, Hans-Christian Hege, Stefan Zachow, Bernhard Preim | Generation and Visual Exploration of Medical Flow Data: Survey, Research Trends, and Future Challenges | Computer Graphics Forum, 38(1), pp. 87-125, 2019 |
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2016 |
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Jens Kasten, Jan Reininghaus, Ingrid Hotz, Hans-Christian Hege, Bernd Noack, Guillaume Daviller, Marek Morzyński | Acceleration feature points of unsteady shear flows | Archives of Mechanics, 68(1), pp. 55-80, 2016 (preprint available as ZIB-Report 15-65) |
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2012 |
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Jens Kasten, Andre Zoufahl, Hans-Christian Hege, Ingrid Hotz | Analysis of Vortex Merge Graphs | VMV 2012: Vision, Modeling and Visualization, pp. 111-118, 2012 |
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Jens Kasten, Ingrid Hotz, Hans-Christian Hege | On the Elusive Concept of Lagrangian Coherent Structures | Topological Methods in Data Analysis and Visualization II, pp. 207-220, Ronald Peikert, Helwig Hauser, Hamish Carr, Raphael Fuchs (Eds.), Springer, 2012 |
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Jens Kasten, Ingrid Hotz, Bernd Noack, Hans-Christian Hege | Vortex Merge Graphs in Two-dimensional Unsteady Flow Fields | EuroVis – Short Papers, pp. 1-5, 2012 |
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2011 |
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Hans-Christian Hege, Jens Kasten, Ingrid Hotz | Distillation and Visualization of Spatiotemporal Structures in Turbulent Flow Fields | J. Phys., Vol.318, p. 062009, 2011 |
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Jens Kasten, Ingrid Hotz, Bernd Noack, Hans-Christian Hege | On the Extraction of Long-living Features in Unsteady Fluid Flows | Topological Methods in Data Analysis and Visualization, pp. 115-126, Valerio Pascucci, Xavier Tricoche, Hans Hagen, Julien Tierny (Eds.), Springer: Berlin, 2011, ISBN: 978-3-642-15013-5 |
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Jens Kasten, Jan Reininghaus, Ingrid Hotz, Hans-Christian Hege | Two-Dimensional Time-Dependent Vortex Regions Based on the Acceleration Magnitude | IEEE Transactions on Visualization and Computer Graphics, 17(12), pp. 2080-2087target, 2011 |
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2010 |
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Jens Kasten, Tino Weinkauf, Christoph Petz, Ingrid Hotz, Bernd R. Noack, Hans-Christian Hege | Extraction of Coherent Structures from Natural and Actuated Flows | Active Flow Control II, Springer, Berlin, pp. 373-387, 2010, ISBN: 978-3-642-11734-3 |
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Jens Kasten, Jan Reininghaus, Kilian Oberleithner, Ingrid Hotz, Bernd Noack, Hans-Christian Hege | Flow over a Cavity – Evolution of the Vortex Skeleton | Visualization at 28th Annual Gallery of Fluid Motion exhibit, held at the 63th Annual Meeting of the American Physical Society, Division of Fluid Dynamics (Long Beach, CA, USA, November 21-23, 2010)., 2010 |
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Jens Kasten, Christoph Petz, Ingrid Hotz, Hans-Christian Hege, Bernd Noack, Gilead Tadmor | Lagrangian Feature Extraction of the Cylinder Wake | Physics of Fluids, 22(9), p. 091108, 2010 |
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2009 |
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Jens Kasten, Christoph Petz, Ingrid Hotz, Bernd R. Noack, Hans-Christian Hege | Localized Finite-time Lyapunov Exponent for Unsteady Flow Analysis | Vision Modeling and Visualization, Marcus Magnor, Bodo Rosenhahn, Holger Theisel (Eds.), pp. 265-274, Vol.1, 2009, ISBN: 978-3-9804874-8-1 |
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Kuangyu Shi, Holger Theisel, Helwig Hauser, Tino Weinkauf, Hans-Christian Hege, Hans-Peter Seidel | Path Line Attributes - an Information Visualization Approach to Analyzing the Dynamic Behavior of 3D Time-Dependent Flow Fields | Topology-Based Methods in Visualization II, pp. 75-88, Mathematics and Visualization, 2009 |
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Tino Weinkauf, David Günther | Separatrix Persistence: Extraction of Salient Edges on Surfaces Using Topological Methods | Computer Graphics Forum (Proc. SGP’09), 28(5), pp. 1519-1528, 2009 |
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2008 |
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Robert S. Laramee, Gordon Erlebacher, Christoph Garth, Tobias Schafhitzel, Holger Theisel, Xavier Tricoche, Tino Weinkauf, Daniel Weiskopf | Applications of Texture-Based Flow Visualization | Engineering Applications of Computational Fluid Mechanics, 2(3), pp. 264-274, 2008 |
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Tino Weinkauf | Extraction of Topological Structures in 2D and 3D Vector Fields | Doctoral thesis, Zuse Institute Berlin and Otto-von-Guericke-Universität Magdeburg, Fakultät für Informatik, 2008 |
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Tino Weinkauf, Jan Sahner, Bert Günther, Holger Theisel, Hans-Christian Hege, Frank Thiele | Feature-based Analysis of a Multi-Parameter Flow Simulation | Proc. of 19th Simulation and Visualization Conference (SimVis 2008), pp. 237-251, 2008 |
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Kuangyu Shi, Holger Theisel, Tino Weinkauf, Hans-Christian Hege, Hans-Peter Seidel | Finite-Time Transport Structures of Flow Fields | Proc. IEEE Pacific Visualization 2008, pp. 63-70, 2008 |
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Holger Theisel, Tino Weinkauf | Morphological Representations of Vector Fields | Shape Analysis and Structuring, Springer, 2008 |
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Wolfram von Funck, Tino Weinkauf, Holger Theisel, Hans-Christian Hege | Smoke Surfaces: An Interactive Flow Visualization Technique Inspired by Real-World Flow Experiments | IEEE Transactions on Visualization and Computer Graphics (Proceedings Visualization 2008), pp. 1396-1403, 14(6), 2008 |
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Kuangyu Shi, Tino Weinkauf, Holger Theisel, Hans-Christian Hege, Hans-Peter Seidel | Visualizing Transport Structures of Time-Dependent Flow Fields | IEEE Computer Graphics and Applications, pp. 24-35, 2008 |
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