TU Berlin

Numerische FluiddynamikDr. rer. nat. Lewin Stein

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Lewin Stein (Dr. rer. nat.)

Lupe

Lewin.Stein{a)TU-Berlin.DE
+49 (0) 30 314 21152

Office: VWS 120
Post: TU-Berlin, Sekr. MB1
Müller-Breslau-Straße 15
10623 Berlin

Research

  • Fluid-Structure-Sound Interaction
  • Acoustic Modelling
  • Wave Field Synthesis
  • Turbulent Boundary and Shear Layers
  • Computational Fluid Dynamics: Direct Numerical Simulation, High Performance Computing

Projects

Supercomputer Projects

Journal Articles

Numerical Simulation of a Resonant Cavity: Acoustical Response Under Grazing Turbulent Flow
Citation key steinNumericalSimulation18
Author Stein, Lewin and Reiss, Julius and Sesterhenn, Jörn
Pages 671-681
Year 2018
Journal New Results in Numerical and Experimental Fluid Mechanics XI
Volume 136
Editor Dillmann, Andreas and Heller, Gerd and Krämer, Ewald and Wagner, Claus and Bansmer, Stephan and Radespiel, Rolf and Semaan, Richard
Abstract Helmholtz resonators play a key role as silencers in many technical applications. The aim of this work is to study the mechanism that governs the emission and reduction of noise. For the first time, we closely monitor the interaction between the acoustic field of a Helmholtz resonator's geometry and a fully turbulent shearing flow by a Direct Numerical Simulation. The properties of a fully turbulent flat plate flow with and without a wall-mounted cavity are contrasted and compared to the Chase model.
Link to publication Download Bibtex entry

Teaching

Lecture Activities

Supervised Master Theses

  • Gourdazi, A. (2018, BMW cooperation). Temperature effects on aeroacoustics of a subsonic jet flow from an open pipe
  • Jarolin, K. (2017). Treatment of sharp edges for conservative finite difference methods
  • Kruse, P. (2015). Helmholtz resonator dynamics examined by a modal decomposition

Personal Information

Education

Research Stays

  • 2010 Yale University (USA) with Prof. Hong Tang (RISE-DAAD Research Scholar)
  • 2009 Tohoku University (Japan) with Prof. Riichiro Saito (German Academic Scholarship Foundation Grant)

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