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D5

Diplom-Mathematiker

Alexander Rüttgers

Ph.D. Student in D5

 

University of Bonn
Institute for
Numerical Simulation

Wegelerstr. 6
53115 Bonn
Germany

 

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Alexander Rüttgers

SFB/TR32 - Project affiliations

D5 - A high-resolution space-time model for precipitation combining remote sensing and in-situ measurements

MGK - Integrated Research Training Group (IRTG) – all doctoral students

Doctoral research topic

Project start date: 02/11

Multiscale Simulation of Polymeric Fluids using Sparse Grids

Advisor: Prof. Dr. Michael Griebel

Other doctoral committee members: add names (and affiliations, if not TR32)

Scientific interests

  • Computational fluid dynamics
  • Stochastic processes in polymeric fluids
  • Sparse grid methods
  • Uncertainty quantification in Bayesian inversion

Education

2005-2010: Diploma in Mathematics, University of Bonn

Thesis title: Multiscale Modelling of Dilute Polymeric Fluids with Stochastic and Fokker-Planck-based Methods

Completed research project

DFG project
Speicherung und Transport von Öl in Borsten spezialisierter Bienen und in faserbasierten Strukturen: Strukturprinzipien, Wirkmechanismen, Numerische Simulation und technologische Umsetzung

Publications

[1] A. Rüttgers, M. Griebel, L. Pastrik, H. Schmied, D. Wittmann, A. Scherrieble, A. Dinkelmann, and T. Stegmaier. Simulation of the oil storage process in the scopa of specialized bees. Computers & Fluids, 119:115-130, 2015. also available as INS Preprint No. 1404.
[ bib | http | .pdf 1 ]
[2] J. Adelsberger, P. Esser, M. Griebel, S. Groß, M. Klitz, and A. Rüttgers. 3D incompressible two-phase flow benchmark computations for rising droplets. 2014. Proceedings of the 11th World Congress on Computational Mechanics (WCCM XI), Barcelona, Spain, also available as INS Preprint No. 1401 and as IGPM Preprint No. 393.
[ bib | http | http | .pdf 1 ]
[3] M. Griebel and A. Rüttgers. Simulation of dilute polymeric fluids in a three-dimensional contraction using a multiscale FENE model. volume 1593 of AIP Conference Proceedings, pages 539-543, 2014. Proceedings of PPS-29: The 29th International Conference of the Polymer Processing Society, Nuremberg, Germany, also available as INS Preprint No. 1308.
[ bib | www: | .pdf 1 ]
[4] M. Griebel and A. Rüttgers. Multiscale simulations of three-dimensional viscoelastic flows in a square-square contraction. Journal of non-Newtonian Fluid Mechanics, 205:41-63, 2014. also available as INS Preprint No. 1313.
[ bib | http | .pdf 1 ]
[5] A. Rüttgers. Multiscale Modelling of Dilute Polymeric Fluids with Stochastic and Fokker-Planck-based Methods. Diplomarbeit, Institut für Numerische Simulation, Universität Bonn, 2010.
[ bib | .pdf 1 ]
[6] A. Rüttgers. Fehlerabschätzungen in der fast multipole method bei systemen mit periodischen randbedingungen. In M. Bolten, editor, Ergebnisse des Gaststudentenprogramms 2007 des John von Neumann-Instituts für Computing, Beiträge zum Wissenschaftlichen Rechnen, pages 107-121. Jülich Supercomputing Centre, 2007.
[ bib | http ]

Conference contributions

[1] Multiscale flow simulation of dilute polymeric fluids using bead-spring chains,
AERC 2015 - Annual European Rheology Conference, Nantes, France, April 14-17, 2015.
[2] 3D simulation of floral oil storage in the scopa of South American insects,
American Physical Society 67th Annual Fall DFD Meeting, San Francisco, California, USA, November 23-25, 2014.
[3] 3D incompressible two-phase flow benchmark computations for rising droplets,
WCCM XI - 11th World Congress on Computational Mechanics , Barcelona, Spain, July 20-25, 2014.
[4] 3D Simulation of Liquid Storage in the Feathers of Sandgrouses and in the Scopa of Specialized Insects,
ESCO 2014 - 4th European Seminar on Computing , Pilsen, Czech Republic, June 15-20, 2014.
[5] Simulation of the oil storage process in the scopa of specialized insects,
ParCFD - 26th International Conference on Parallel Computational Fluid Dynamics, Trondheim, Norway, May 20-22, 2014.
[6] 3D multiscale FENE dumbbell simulations on massively parallel multi-GPU clusters,
AERC 2014 - Annual European Rheology Conference 2014, Karlsruhe, Germany, April 8-11, 2014.
[7] Computationally challenging 3D multiscale FENE dumbbell simulations on multi-GPU systems,
Society of Rheology 85th Annual Meeting, Montreal, Canada, October 13-17, 2013.
[8] Simulation of dilute polymeric fluids in a three-dimensional contraction using a multiscale FENE model,
29th International Conference of the Polymer Processing Society, Nürnberg, Germany, July 15-19, 2013.
[9] Simulation of three-dimensional square-square contraction flows using a multiscale approach,
AERC13 - Annual European Rheology Conference 2013, Leuven, Belgium, April 2-5, 2013.
[10] Micro-Macro Simulation of Viscoelastic Fluids in Three Dimensions,
American Physical Society 65th Annual Fall DFD Meeting, San Diego, California, USA, November 18-20, 2012.
[11] Multiscale Simulation of dilute polymeric fluids by solving a high-dimensional Navier-Stokes-BCF system,
ECCOMAS 2012 - 6th EUROPEAN CONGRESS ON COMPUTATIONAL METHODS IN APPLIED SCIENCES AND ENGINEERING, Vienna, Austria, September 10-14, 2012.

Other Talks

[1] Multiscale Modelling of Dilute Polymeric Fluids with Stochastic and Fokker-Planck-based Methods,
Jülich Supercomputing Centre (JSC), Germany, November 10, 2010.
[2] Modelling of Dilute Polymeric Fluids with Stochastic and Fokker-Planck-based Methods,
Seminar Cardiff School of Mathematics, Cardiff , UK, May 11, 2010.

Research stays

[1] Advanced Course: "Separated Representations & PGD Based Model Reduction: Fundamentals and Applications"
CISM: International Centre for Mechanical Sciences, Udine, Italy, July 8-12, 2013.
[2] 13th European School on Rheology
Laboratory of Applied Rheology and Polymer Processing, Leuven, Belgium, September 5-9, 2011.

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