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Alexander Straub

M. Sc.

Doctoral Researcher
Visualization Research Center (VISUS)
Weiskopf Group

Contact

Allmandring 19
70569 Stuttgart
Deutschland

Subject

IRTG 2160: Droplet Interaction Technologies (DROPIT)
Subproject C4 – Visualisation of droplet-liquid interaction

The project's goal is to research theoretically, experimentally and numerically the interaction of droplets. To this end, this subproject aims at visualising the results obtained from direct numerical simulations of multiphase flow. This includes the visual analysis of droplet-local flow, as well as research of droplet interface related phenomena, which especially occur following interactions between different droplets, e.g., after collisions.

SFB 1313: Interface-Driven Multi-Field Processes in Porous Media – Flow, Transport and Deformation
Subproject D01 – Visualization of multi-field processes in porous media

The long-term goal of this project is to develop new visualization techniques to support the projects of the SFB in understanding flow, transport and deformation phenomena occurring at interfaces in and around porous media. This requires the integrated visual analysis of processes captured across multiple fields to relate different quantities, analyse simulation ensembles, and compare simulations against experiments. The interactive exploration of large and heterogeneous volumes of data is achieved by efficiently using parallel architectures as well as in-situ data aggregation.

Publications

2024
1. Straub, Alexander ; Sadlo, Filip ; Ertl, Thomas: Feature-Based Deformation for Flow Visualization. In: Journal of Visualization (2024)
  - BibTeX
  - DOI
  BibTeX
  @article{straub:2024:feature-based, affiliation = {Straub, Alexander, Visualisierungsinstitut der Universität Stuttgart. Sadlo, Filip, Universität Heidelberg. Ertl, Thomas, Visualisierungsinstitut der Universität Stuttgart}, author = {Straub, Alexander and Sadlo, Filip and Ertl, Thomas}, doi = {10.1007/s12650-024-00963-5}, journal = {Journal of Visualization}, orcid-numbers = {Straub, Alexander/0000-0002-6749-9710, Sadlo, Filip/0000-0002-8949-8452, Ertl, Thomas/0000-0003-4019-2505}, title = {Feature-Based Deformation for Flow Visualization}, year = 2024 }
  DOI
  10.1007/s12650-024-00963-5
2023
1. Straub, Alexander ; Karadimitriou, Nikolaos ; Reina, Guido ; Frey, Steffen ; Steeb, Holger ; Ertl, Thomas: Visual Analysis of Displacement Processes in Porous Media using Spatio-Temporal Flow Graphs. In: IEEE Transactions on Visualization and Computer Graphics Bd. 30 (2023), S. 759–769
  - BibTeX
  - DOI
  BibTeX
  @article{straub2023visual, affiliation = {Straub, Alexander, Visualisierungsinstitut der Universität Stuttgart. Reina, Guido, Visualisierungsinstitut der Universität Stuttgart. Frey, Steffen, Visualisierungsinstitut der Universität Stuttgart. Steeb, Holger, Institute of Applied Mechanics. Ertl, Thomas, Visualisierungsinstitut der Universität Stuttgart}, author = {Straub, Alexander and Karadimitriou, Nikolaos and Reina, Guido and Frey, Steffen and Steeb, Holger and Ertl, Thomas}, doi = {10.1109/TVCG.2023.3326931}, journal = {IEEE Transactions on Visualization and Computer Graphics}, number = 1, orcid-numbers = {Straub, Alexander/0000-0002-6749-9710, Reina, Guido/0000-0003-4127-1897, Frey, Steffen/0000-0002-1872-6905, Steeb, Holger/0000-0001-7602-4920, Ertl, Thomas/0000-0003-4019-2505}, pages = {759-769}, title = {Visual Analysis of Displacement Processes in Porous Media using Spatio-Temporal Flow Graphs}, volume = 30, year = 2023 }
  DOI
  10.1109/TVCG.2023.3326931
2. Straub, Alexander ; Karch, Grzegorz Karol ; Steigerwald, Jonas ; Sadlo, Filip ; Weigand, Bernhard ; Ertl, Thomas: Visual Analysis of Interface Deformation in Multiphase Flow. In: Journal of Visualization Bd. 26 (2023), S. 1321–1338
  - BibTeX
  - DOI
  BibTeX
  @article{straub2023visual, affiliation = {Straub, Alexander, Visualisierungsinstitut der Universität Stuttgart. Karch, Grzegorz Karol, Visualisierungsinstitut der Universität Stuttgart. Sadlo, Filip, Universität Heidelberg. Weigand, Bernhard, Institut für Thermodynamik der Luft- und Raumfahrt. Ertl, Thomas, Visualisierungsinstitut der Universität Stuttgart}, author = {Straub, Alexander and Karch, Grzegorz Karol and Steigerwald, Jonas and Sadlo, Filip and Weigand, Bernhard and Ertl, Thomas}, doi = {10.1007/s12650-023-00939-x}, journal = {Journal of Visualization}, number = 6, orcid-numbers = {Straub, Alexander/0000-0002-6749-9710, Karch, Grzegorz Karol/0000-0002-1801-8642, Sadlo, Filip/0000-0002-8949-8452, Weigand, Bernhard/0000-0002-1469-079X, Ertl, Thomas/0000-0003-4019-2505}, pages = {1321-1338}, title = {Visual Analysis of Interface Deformation in Multiphase Flow}, volume = 26, year = 2023 }
  DOI
  10.1007/s12650-023-00939-x
2022
1. Straub, Alexander ; Boblest, Sebastian ; Karch, Grzegorz Karol ; Sadlo, Filip ; Ertl, Thomas: Droplet-Local Line Integration for Multiphase Flow. In: 2022 IEEE Visualization and Visual Analytics (VIS), 2022, S. 135–139
  BibTeX
  @inproceedings{straub2022dropletlocal, affiliation = {Straub, Alexander, Visualisierungsinstitut der Universität Stuttgart. Boblest, Sebastian, Visualisierungsinstitut der Universität Stuttgart. Karch, Grzegorz Karol, Visualisierungsinstitut der Universität Stuttgart. Sadlo, Filip, Universität Heidelberg. Ertl, Thomas, Visualisierungsinstitut der Universität Stuttgart}, author = {Straub, Alexander and Boblest, Sebastian and Karch, Grzegorz Karol and Sadlo, Filip and Ertl, Thomas}, booktitle = {2022 IEEE Visualization and Visual Analytics (VIS)}, doi = {10.1109/VIS54862.2022.00036}, orcid-numbers = {Straub, Alexander/0000-0002-6749-9710, Karch, Grzegorz Karol/0000-0002-1801-8642, Sadlo, Filip/0000-0002-8949-8452, Ertl, Thomas/0000-0003-4019-2505}, pages = {135-139}, title = {Droplet-Local Line Integration for Multiphase Flow}, url = {https://doi.org/10.1109/VIS54862.2022.00036}, year = 2022 }
  Link
  https://doi.org/10.1109/VIS54862.2022.00036
  DOI
  10.1109/VIS54862.2022.00036
2021
1. Straub, Alexander ; Karch, Grzegorz Karol ; Sadlo, Filip ; Ertl, Thomas: Implicit Visualization of 2D Vector Field Topology for Periodic Orbit Detection. In: Topological Methods in Data Analysis and Visualization VI : Springer International Publishing, 2021, S. 159–180
  BibTeX
  @incollection{straub2021implicit, affiliation = {Straub, Alexander, Visualisierungsinstitut der Universität Stuttgart. Karch, Grzegorz Karol, Visualisierungsinstitut der Universität Stuttgart. Sadlo, Filip, Universität Heidelberg. Ertl, Thomas, Visualisierungsinstitut der Universität Stuttgart}, author = {Straub, Alexander and Karch, Grzegorz Karol and Sadlo, Filip and Ertl, Thomas}, booktitle = {Topological Methods in Data Analysis and Visualization VI}, doi = {10.1007/978-3-030-83500-2_9}, editor = {Hotz, Ingrid and Bin Masood, Talha and Sadlo, Filip and Tierny, Julien}, orcid-numbers = {Straub, Alexander/0000-0002-6749-9710, Karch, Grzegorz Karol/0000-0002-1801-8642, Sadlo, Filip/0000-0002-8949-8452, Ertl, Thomas/0000-0003-4019-2505}, pages = {159-180}, publisher = {Springer International Publishing}, series = {Mathematics and Visualization}, title = {Implicit Visualization of 2D Vector Field Topology for Periodic Orbit Detection}, url = {https://doi.org/10.1007/978-3-030-83500-2_9}, year = 2021 }
  Link
  https://doi.org/10.1007/978-3-030-83500-2_9
  DOI
  10.1007/978-3-030-83500-2_9
2. Schatz, Karsten ; Müller, Christoph ; Gralka, Patrick ; Heinemann, Moritz ; Straub, Alexander ; Schulz, Christoph ; Braun, Matthias ; Rau, Tobias ; Becher, Michael ; Frey, Steffen ; Reina, Guido ; Sedlmair, Michael ; Weiskopf, Daniel ; Ertl, Thomas ; Diehl, Patrick ; Marcello, Dominic ; Frank, Juhan ; Müller, Thomas: 2019 IEEE Scientific Visualization Contest Winner: Visual Analysis of Structure Formation in Cosmic Evolution. In: IEEE Computer Graphics and Applications Bd. 41 (2021), S. 101–110
  BibTeX
  @article{schatz:2021:contest, affiliation = {Müller, Christoph, Visualisierungsinstitut der Universität Stuttgart. Gralka, Patrick, Visualisierungsinstitut der Universität Stuttgart. Heinemann, Moritz, Visualisierungsinstitut der Universität Stuttgart. Straub, Alexander, Visualisierungsinstitut der Universität Stuttgart. Schulz, Christoph, Visualisierungsinstitut der Universität Stuttgart. Braun, Matthias, Visualisierungsinstitut der Universität Stuttgart. Becher, Michael, Visualisierungsinstitut der Universität Stuttgart. Frey, Steffen, Visualisierungsinstitut der Universität Stuttgart. Reina, Guido, Visualisierungsinstitut der Universität Stuttgart. Sedlmair, Michael, Visualisierungsinstitut der Universität Stuttgart. Weiskopf, Daniel, Visualisierungsinstitut der Universität Stuttgart. Ertl, Thomas, Visualisierungsinstitut der Universität Stuttgart. Diehl, Patrick, Louisiana State University. Müller, Thomas, Max-Planck-Institut für Astronomie}, author = {Schatz, Karsten and Müller, Christoph and Gralka, Patrick and Heinemann, Moritz and Straub, Alexander and Schulz, Christoph and Braun, Matthias and Rau, Tobias and Becher, Michael and Frey, Steffen and Reina, Guido and Sedlmair, Michael and Weiskopf, Daniel and Ertl, Thomas and Diehl, Patrick and Marcello, Dominic and Frank, Juhan and Müller, Thomas}, doi = {10.1109/MCG.2020.3004613}, journal = {IEEE Computer Graphics and Applications}, number = 6, orcid-numbers = {Müller, Christoph/0000-0002-9979-3682, Gralka, Patrick/0000-0003-4586-8279, Heinemann, Moritz/0000-0001-5718-8903, Straub, Alexander/0000-0002-6749-9710, Schulz, Christoph/0000-0001-5771-3966, Braun, Matthias/0000-0001-8591-3690, Becher, Michael/0000-0002-0072-1655, Frey, Steffen/0000-0002-1872-6905, Reina, Guido/0000-0003-4127-1897, Sedlmair, Michael/0000-0001-7048-9292, Weiskopf, Daniel/0000-0003-1174-1026, Ertl, Thomas/0000-0003-4019-2505, Diehl, Patrick/0000-0003-3922-8419, Müller, Thomas/0000-0002-2003-4465}, pages = {101-110}, title = {2019 IEEE Scientific Visualization Contest Winner: Visual Analysis of Structure Formation in Cosmic Evolution}, url = {https://ieeexplore.ieee.org/document/9126163}, volume = 41, year = 2021 }
  Link
  https://ieeexplore.ieee.org/document/9126163
  DOI
  10.1109/MCG.2020.3004613
3. Heinemann, Moritz ; Frey, Steffen ; Tkachev, Gleb ; Straub, Alexander ; Sadlo, Filip ; Ertl, Thomas: Visual analysis of droplet dynamics in large-scale multiphase spray simulations. In: Journal of Visualization Bd. 24 (2021), S. 943–961
  BibTeX
  @article{heinemann2021visual, affiliation = {Heinemann, Moritz, Visualisierungsinstitut der Universität Stuttgart. Frey, Steffen, Visualisierungsinstitut der Universität Stuttgart. Tkachev, Gleb, Visualisierungsinstitut der Universität Stuttgart. Straub, Alexander, Visualisierungsinstitut der Universität Stuttgart. Sadlo, Filip, Universität Heidelberg. Ertl, Thomas, Visualisierungsinstitut der Universität Stuttgart}, author = {Heinemann, Moritz and Frey, Steffen and Tkachev, Gleb and Straub, Alexander and Sadlo, Filip and Ertl, Thomas}, doi = {10.1007/s12650-021-00750-6}, journal = {Journal of Visualization}, month = {05}, number = 5, orcid-numbers = {Heinemann, Moritz/0000-0001-5718-8903, Frey, Steffen/0000-0002-1872-6905, Tkachev, Gleb/0000-0003-2515-5263, Straub, Alexander/0000-0002-6749-9710, Sadlo, Filip/0000-0002-8949-8452, Ertl, Thomas/0000-0003-4019-2505}, pages = {943-961}, title = {Visual analysis of droplet dynamics in large-scale multiphase spray simulations}, url = {https://doi.org/10.1007/s12650-021-00750-6}, volume = 24, year = 2021 }
  Link
  https://doi.org/10.1007/s12650-021-00750-6
  DOI
  10.1007/s12650-021-00750-6
2020
1. Straub, Alexander ; Ertl, Thomas: Visualization Techniques for Droplet Interfaces and Multiphase Flow. In: Droplet Interactions and Spray Processes. Bd. 121 : Springer International Publishing, 2020, S. 203–214
  BibTeX
  @incollection{Straub2020dropit, affiliation = {Straub, Alexander, Visualisierungsinstitut der Universität Stuttgart. Ertl, Thomas, Visualisierungsinstitut der Universität Stuttgart}, author = {Straub, Alexander and Ertl, Thomas}, booktitle = {Droplet Interactions and Spray Processes}, doi = {10.1007/978-3-030-33338-6_16}, editor = {Lamanna, Grazia and Tonini, Simona and Cossali, Gianpietro Elvio and Weigand, Bernhard}, orcid-numbers = {Straub, Alexander/0000-0002-6749-9710, Ertl, Thomas/0000-0003-4019-2505}, pages = {203-214}, publisher = {Springer International Publishing}, series = {Fluid Mechanics and its Applications}, title = {Visualization Techniques for Droplet Interfaces and Multiphase Flow}, url = {https://dx.doi.org/10.1007/978-3-030-33338-6_16}, volume = 121, year = 2020 }
  Link
  https://dx.doi.org/10.1007/978-3-030-33338-6_16
  DOI
  10.1007/978-3-030-33338-6_16
2019
1. Schatz, Karsten ; Müller, Christoph ; Gralka, Patrick ; Heinemann, Moritz ; Straub, Alexander ; Schulz, Christoph ; Braun, Matthias ; Rau, Tobias ; Becher, Michael ; Diehl, Patrick ; Marcello, Dominic ; Frank, Juhan ; Müller, Thomas ; Frey, Steffen ; Reina, Guido ; Weiskopf, Daniel ; Ertl, Thomas: Visual Analysis of Structure Formation in Cosmic Evolution. In: Proceedings of the IEEE Scientific Visualization Conference (SciVis), 2019, S. 33–41
  BibTeX
  @inproceedings{schatz2019visual, affiliation = {Müller, Christoph, Visualisierungsinstitut der Universität Stuttgart. Gralka, Patrick, Visualisierungsinstitut der Universität Stuttgart. Heinemann, Moritz, Visualisierungsinstitut der Universität Stuttgart. Straub, Alexander, Visualisierungsinstitut der Universität Stuttgart. Schulz, Christoph, Visualisierungsinstitut der Universität Stuttgart. Braun, Matthias, Visualisierungsinstitut der Universität Stuttgart. Becher, Michael, Visualisierungsinstitut der Universität Stuttgart. Diehl, Patrick, Louisiana State University. Müller, Thomas, Max-Planck-Institut für Astronomie. Frey, Steffen, Visualisierungsinstitut der Universität Stuttgart. Reina, Guido, Visualisierungsinstitut der Universität Stuttgart. Weiskopf, Daniel, Visualisierungsinstitut der Universität Stuttgart. Ertl, Thomas, Visualisierungsinstitut der Universität Stuttgart}, author = {Schatz, Karsten and Müller, Christoph and Gralka, Patrick and Heinemann, Moritz and Straub, Alexander and Schulz, Christoph and Braun, Matthias and Rau, Tobias and Becher, Michael and Diehl, Patrick and Marcello, Dominic and Frank, Juhan and Müller, Thomas and Frey, Steffen and Reina, Guido and Weiskopf, Daniel and Ertl, Thomas}, booktitle = {Proceedings of the IEEE Scientific Visualization Conference (SciVis)}, doi = {10.1109/scivis47405.2019.8968855}, orcid-numbers = {Müller, Christoph/0000-0002-9979-3682, Gralka, Patrick/0000-0003-4586-8279, Heinemann, Moritz/0000-0001-5718-8903, Straub, Alexander/0000-0002-6749-9710, Schulz, Christoph/0000-0001-5771-3966, Braun, Matthias/0000-0001-8591-3690, Becher, Michael/0000-0002-0072-1655, Diehl, Patrick/0000-0003-3922-8419, Müller, Thomas/0000-0002-2003-4465, Frey, Steffen/0000-0002-1872-6905, Reina, Guido/0000-0003-4127-1897, Weiskopf, Daniel/0000-0003-1174-1026, Ertl, Thomas/0000-0003-4019-2505}, pages = {33-41}, title = {Visual Analysis of Structure Formation in Cosmic Evolution}, url = {https://ieeexplore.ieee.org/abstract/document/8968855}, year = 2019 }
  Link
  https://ieeexplore.ieee.org/abstract/document/8968855
  DOI
  10.1109/scivis47405.2019.8968855
2. Straub, Alexander ; Heinemann, Moritz ; Ertl, Thomas: Visualization and Visual Analysis for Multiphase Flow. In: Proceedings of the DIPSI Workshop 2019. Droplet Impact Phenomena & Spray Investigations. Bergamo, Italy : Università degli studi di Bergamo, 2019, S. 25–27
  BibTeX
  @inproceedings{straub2019visualization, address = {Bergamo, Italy}, affiliation = {Straub, Alexander, Visualisierungsinstitut der Universität Stuttgart. Heinemann, Moritz, Visualisierungsinstitut der Universität Stuttgart. Ertl, Thomas, Visualisierungsinstitut der Universität Stuttgart}, author = {Straub, Alexander and Heinemann, Moritz and Ertl, Thomas}, booktitle = {Proceedings of the DIPSI Workshop 2019. Droplet Impact Phenomena & Spray Investigations}, doi = {10.6092/DIPSI2019_pp25-27}, editor = {Cossali, Gianpietro Elvio and Tonini, Simona}, institution = {Università degli studi di Bergamo}, orcid-numbers = {Straub, Alexander/0000-0002-6749-9710, Heinemann, Moritz/0000-0001-5718-8903, Ertl, Thomas/0000-0003-4019-2505}, organization = {Università degli studi di Bergamo}, pages = {25-27}, publisher = {Università degli studi di Bergamo}, title = {Visualization and Visual Analysis for Multiphase Flow}, url = {https://dx.doi.org/10.6092%2FDIPSI2019_pp25-27}, year = 2019 }
  Link
  https://dx.doi.org/10.6092%2FDIPSI2019_pp25-27
  DOI
  10.6092/DIPSI2019_pp25-27
2018
1. Straub, Alexander ; Karch, Grzegorz Karol ; Boblest, Sebastian ; Kaufmann, Jonas ; Sadlo, Filip ; Weigand, Bernhard ; Ertl, Thomas: Visual Analysis of Interface Deformation in Multiphase Flow. In: Proceedings of the DIPSI Workshop 2018. Droplet Impact Phenomena & Spray Investigations. Bergamo, Italy : Università degli studi di Bergamo, 2018, S. 45–47
  BibTeX
  @inproceedings{straub2018visual, address = {Bergamo, Italy}, affiliation = {Straub, Alexander, Visualisierungsinstitut der Universität Stuttgart. Karch, Grzegorz Karol, Visualisierungsinstitut der Universität Stuttgart. Boblest, Sebastian, Visualisierungsinstitut der Universität Stuttgart. Sadlo, Filip, Universität Heidelberg. Weigand, Bernhard, Institut für Thermodynamik der Luft- und Raumfahrt. Ertl, Thomas, Visualisierungsinstitut der Universität Stuttgart}, author = {Straub, Alexander and Karch, Grzegorz Karol and Boblest, Sebastian and Kaufmann, Jonas and Sadlo, Filip and Weigand, Bernhard and Ertl, Thomas}, booktitle = {Proceedings of the DIPSI Workshop 2018. Droplet Impact Phenomena & Spray Investigations}, doi = {10.6092/DIPSI2018_pp45-47}, editor = {Cossali, Gianpietro Elvio and Tonini, Simona}, institution = {Università degli studi di Bergamo}, orcid-numbers = {Straub, Alexander/0000-0002-6749-9710, Karch, Grzegorz Karol/0000-0002-1801-8642, Sadlo, Filip/0000-0002-8949-8452, Weigand, Bernhard/0000-0002-1469-079X, Ertl, Thomas/0000-0003-4019-2505}, organization = {Università degli studi di Bergamo}, pages = {45-47}, publisher = {Università degli studi di Bergamo}, title = {Visual Analysis of Interface Deformation in Multiphase Flow}, url = {http://dx.doi.org/10.6092%2FDIPSI2018_pp45-47}, year = 2018 }
  Link
  http://dx.doi.org/10.6092%2FDIPSI2018_pp45-47
  DOI
  10.6092/DIPSI2018_pp45-47
2017
1. Karch, Grzegorz Karol ; Straub, Alexander ; Sadlo, Filip ; Ertl, Thomas: Implicit Visualization of Vector Field Topology. In: Proceedings of TopoInVis, 2017. — Reviewed abstract
  - BibTeX
  BibTeX
  @inproceedings{karch2017implicit, affiliation = {Karch, Grzegorz Karol, Visualisierungsinstitut der Universität Stuttgart. Straub, Alexander, Visualisierungsinstitut der Universität Stuttgart. Sadlo, Filip, Universität Heidelberg. Ertl, Thomas, Visualisierungsinstitut der Universität Stuttgart}, author = {Karch, Grzegorz Karol and Straub, Alexander and Sadlo, Filip and Ertl, Thomas}, booktitle = {Proceedings of TopoInVis}, note = {Reviewed abstract}, orcid-numbers = {Karch, Grzegorz Karol/0000-0002-1801-8642, Straub, Alexander/0000-0002-6749-9710, Sadlo, Filip/0000-0002-8949-8452, Ertl, Thomas/0000-0003-4019-2505}, title = {Implicit Visualization of Vector Field Topology}, year = 2017 }

Teaching

Seminar Computergraphik in Spielen (SS22)
Computergraphik (WS21)
Seminar Computer Animation (SS21)
Computergraphik (WS20)
Scientific Visualization (SS20)
Seminar Mikro-Visualisierungen (WS19)
Seminar Realistische Echtzeitgrafik (SS19)
Practical Course Visual Computing (WS18)
Practical Course Visual Computing (SS18)
Computergraphik (WS17)
Scientific Visualization (SS17)

Supervised theses and projects

Finished

Visual Analysis of Injection Processes (Thesis, Bachelor)
Comparative Visualization across Physical and Parameter Space (Thesis, Master)
Visual Analysis of Experimental Micro-CT Data of Evaporation in Porous Media (Thesis, Master)
Flow Visualization for Galaxy Formation in Astrophysical Simulations (Research Project, Bachelor)
Curvature-Minimizing Interface Reconstruction (Thesis, Master)
ML-based Visual Analysis of Droplet Behaviour in Multiphase Flow Simulations (Thesis, Master)

ORCID

https://orcid.org/0000-0002-6749-9710

Alexander Straub

Contact

Subject

Publications

2024

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DOI

2023

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2022

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2021

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2020

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2019

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2018

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2017

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Teaching

Supervised theses and projects

ORCID

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