Person

Dr.-Ing.

Lutz Pauli

Research Associate

Lutz Pauli
Chair for Computational Analysis of Technical Systems

Address

Building: Rogowski

Room: 222

Schinkelstraße 2

52062 Aachen

Contact

workPhone
Phone: +49 241 80 99909
Fax: +49 241 80 99910
 

About me

I studied Computational Engineering Science at RWTH Aachen from 2006 till 2011 and finished my PhD on "Stabilized Finite Element Methods for Blood-Handling Medical Devices" during summer 2016. Since then, I am working as a postdoc and went on a research stay to Stanford University thanks to a Theodore-von-Karman-Fellowship. In addition, I am heading the unit "Modeling" of the profile area Computational Science and Engineering CompSE and I am an active member of the GAMM-Juniors.

  Artificial blood vessel Lutz Pauli

Research

  • stabilized finite element methods for convection-diffusion-reaction equations
  • complex blood flow and blood damage modeling
  • turbulence via large eddy simulation (LES)
  • shear-thinning and viscoelastic models
  • mechanical heart assist devices

GoogleScholar, ResearchGate, ORCID

 

Awards

 

Teaching

I was responsible for the exercises in CES Mechanics I/II (Statics and Dynamics) from 2011 till 2016.

Student project offers

Completed Student Projects

  • K. Immel, "Stabilized Finite Element Method for Simulation of Shear-Dependent Platelet Reactions in Medical Applications", Master's Thesis, November 2016.
  • V. Loeser, "Implementation of Semi-Discrete Integration Methods for Finite Element Computations of the Navier-Stokes Equations", Bachelor Thesis, August 2015.
  • L. Gesenhues, "Strain-Based Blood Damage Estimations for Computational Design of Ventricular Assist Devices", Master's Thesis, April 2015.
  • K. Immel, "CFD-Based Hemolysis Prediction of FDA's Benchmark Blood Pump", Bachelor Thesis, September 2014.
  • U.B.H. Hammer, "Experimental Investigation of the Flow Field of a Rotatory Blood Pump with Stereo-Particle Image Velocimetry", Diploma Thesis, May 2014.
  • M. Blatzheim, "A CFD Analysis of FDA's Benchmark Blood Pump", Bachelor Thesis, March 2014.
  • C. Spachtholz and Z. Mi, "Strain-Based Hemolysis Estimation: Parameter Study and Calibration", Project Thesis, December 2013.
  • J. Helmig, "A Numerical Investigation of the Stability of Different Schemes for a simplified Fluid-Structure Interaction Scheme with Application to Physiological Problems", Bachelor Thesis, September 2013.
  • H. Thaeren and L. Hewing, "CFD-Based Hemolysis Estimation in a Centrifugal Bloodpump", Project Thesis, August 2013.
  • T. Ludescher, "Implementation of Fluid-Structure Interaction Capabilities into the Virtual Wind Tunnel Software Package", Bachelor Thesis, August 2013.
  • M. Blatzheim, "Patient Specific Flow Simulation for Tetralogy of Fallot", Project thesis, March 2013.
  • A.K.E. Rommerskirchen, "Development of Simplified Nasal Resistance Models for Restful and High Flow Therapy Assisted Breathing Applying CFD Simulations", Bachelor Thesis, November 2012.
  • E. Chen, "Implementation and Validation of a Mesoscopic Model of Blood for Computational Analysis", Master's Thesis, December 2012.
  • A. Gnech, "Development of a Robust Workflow for a CFD Analysis of External Aerodynamics in a Virtual Wind Tunnel", March 2012.
 

Journal Article

Title
The Virtual Ring Shear-Slip Mesh Update Method
Published in: Computers & fluids (2018)
On stabilized space-time FEM for anisotropic meshes: Incompressible Navier-Stokes equations and applications to blood flow in medical devices
Published in: International journal for numerical methods in fluids (2017)
Strain-Based Blood Damage Modeling : Current Status and Future Perspectives
Published in: The international journal of artificial organs (2017)
Strain-based blood damage estimation for computational design of ventricular assist devices
Published in: The international journal of artificial organs : IJAO (2016)
On The Significance of Exposure Time in Computational Blood Damage Estimation
Published in: The international journal of artificial organs (2016)
Stabilized finite element method for flows with multiple reference frames
Published in: International journal for numerical methods in fluids (2015)
Towards shape optimization of profile extrusion dies with respect to homogeneous die swell
Published in: Journal of non-Newtonian fluid mechanics (2013)
Transient stress-based and strain-based hemolysis estimation in a simplified blood pump
Published in: International journal for numerical methods in biomedical engineering (2013)
On the Usage of NURBS as Interface Representation in Free-Surface Flows
Published in: International journal for numerical methods in fluids (2011)
 

Contribution to Conference Proceedings

Title
Variational Multiscale or Eddy Viscosity: How to Deal with Blood Flows in Transitional Regimes? (2018)
How the deformation of red blood cells affects hemolysis estimation for ventricular assist devices (2018)
On the Significance of Exposure Time in Computational Blood Damage Estimation
Published in: High-performance scientific computing : first JARA-HPC Symposium, JHPCS 2016, Aachen, Germany, October 4-5, 2016 : revised selected papers / Edoardo Di Napoli, Marc-André Hermanns, Hristo Iliev, Andreas Lintermann, Alexander Peyser (eds.) (2017)
Simulation of Flow in Artificial Blood Pumps: Turbulence Modeling and Consideration of Blood Microstructure
Published in: [2017 SIAM Conference on Computational Science and Engineering, SIAM CSE 2017, 2017-02-2 - 2017-03-03, Atlanta, Georgia, USA] (2017)
Large Eddy Simulation with Stabilized FEM for Transition and Turbulence in Medical Devices
Published in: 88th Annual Meeting of the International Association of Applied Mathematics and Mechanics March 6-10, 2017 Weimar, Germany : Book of abstracts / GAMM, Gesellschaft für Angewandte Mathematik und Mechanik e.V., International Association of Applied Mathematics and Mechanics; Deutsche Mathematiker-Vereinigung; [Veranstalter TU Ilmenau und Bauhaus-Universität Weimar] (2017)
Strain-Based Blood Damage Modeling : Current Status and Future Perspectives
Published in: The international journal of artificial organs (2017)
Stabilized Finite Element Methods for Computational Design of Blood-Handling Devices
Published in: [International Workshop on Modelling and Simulation in Biomedical Applications, 2017-10-24 - 2017-10-25, Mariatrost, Austria] (2017)
Improving Numerical Stability of a Tensor-Based Blood Damage Model Using the Log-Conformation Formulation
Published in: 7th GACM Colloquium on Computational Mechanics for Young Scientists from Academia and Industry : proceedings ; a conference under the auspice of the German Association for Computational Mechanics (GACM) ; 11 - 13 October 2017, Stuttgart, Germany / Editors: Malte von Scheven, Marc-André Keip, Nils Karajan (2017)
Schur Complement Based Preconditioning of the Stabilized Stokes Equations
Published in: [Joint DMV and GAMM Annual Meeting, GAMM DMV 2016, 07.03.2016-11.03.2016, Braunschweig, Germany] (2016)
On the Improvement of a Physiological Blood Damage Model for Hemolysis Predictions in Medical Devices
Published in: [VII European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS, 05.06.2016-10.06.2016, Crete Island, Greece] (2016)
Schur Complement Based Preconditioning of the Stabilized Stokes Equations
Published in: [5th European Trilinos User Group Meeting, 18.04.2016-20.04.2016, Garching, Germany] (2016)
On The Significance of Exposure Time in Computational Blood Damage Estimation
Published in: The international journal of artificial organs (2016)
Computational analysis of rotating geometries: an enhanced shear-slip mesh update method
Published in: [3rd ECCOMAS Young Investigators Conference (YIC), 6th GACM Colloquium on Computational Mechanics, YIC GACM 2015, 20.07.2015-23.07.2015, Aachen, Germany] (2015)
Stabilized Finite Element Method for Flows with Multiple Co-Rotating Reference Frames
Published in: [3rd ECCOMAS Young Investigators Conference (YIC), 6th GACM Colloquium on Computational Mechanics, YIC GACM 2015, 20.07.2015-23.07.2015, Aachen, Germany] (2015)
Computational Hemolysis Estimation Based on Viscoelastic Deformation of Red Blood Cells
Published in: [23rd Annual Meeting of the International Society for Rotary Blood Pumps, ISRBP 2015, 27.09.2015-29.09.2015, Dubrovnik, Croatia] (2015)
Advances in Strain-Based Hemolysis Estimation for Computational Design of Blood-Handling Devices
Published in: [2nd International Conference on Biomedical Technology, ICBT15, 28.10.2015-30.10.2015, Hannover, Germany] (2015)
Stress-Based and Strain-Based Hemolysis Estimation for Medical Devices
Published in: 11th World Congress on Computational Mechanics (WCCM XI), 5th European Conference on Computational Mechanics (ECCM V), 6th European Conference on Computational Fluid Dynamics (ECFD VI) : wccm-eccm-ecfd2014 ; July 20–25, 2014, Barcelona, Spain (2014)
Unsteady blood damage estimation for medical devices
Published in: V International Symposium on Modelling of Physiological Flows : MPF 2013 ; June 11-14, 2013, Chia Laguna, Domus de Maria, Cagliari, Sardinia, ITALY ; abstracts of invited lectures / Conference organized by CMCS - Ecole Polythecnique Fédérale de Lausanne ... (2013)