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Publikationen

Panek, L.; Schönwald, N.; Richter, C.; Thiele, F.:
Mode Propagation in Bifurcated Bypass Ducts: Elementary Mechanisms.
In: Proceedings of the 16th AIAA/CEAS Aeroacoustics Conference, AIAA-2010-3893, Stockholm, Sweden, 2010

Schönwald, N.; Panek, L.; Richter, C.; Thiele, F.:
Mode Propagation in Bifurcated Bypass Ducts: Application Oriented Simulation Approach.
In: Proceedings of the 16th AIAA/CEAS Aeroacoustics Conference, AIAA-2010-3894, Stockholm, Sweden, 2010

Abdel Hay, J.;Richter, C.;Panek, Ł.;Thiele, F.:
Acceleration of CAA methodology for liner applications using graphics processors.
In: Proceedings of the Seventeenth International Congress on Sound and Vibration, Cairo, Egypt, 2010

Panek, L.; Schönwald, N.; Richter, C.; Abdelhay, J.; Thiele, F.:
Numerical Investigation of Sound Propagation in Annular Ducts with Installation Parts.
In: Proceedings of the Sixteenth International Congress on Sound and Vibration, Krakow, 2009

Richter, C.; Panek, L.; Krause, V.; Thiele, F.:
Chapter 8: Investigations Regarding the Simulation of Wall Noise Interaction and Noise Propagation in Swirled Combustion Chamber Flows.
Schwarz, A. and Janicka, J., In: Combustion Noise, Abschlussbericht der Forschergruppe, p. 221-242, Springer, 2009

Panek, L.; Schönwald, N.; Richter, C.; Thiele, F.:
Simulation of the Rearward Propagation of Fan Noise through a Long Cowl Aero-engine.
In: Proceedings of the 14th AIAA/CEAS Aeroacoustics, AIAA-2008-2820, ISBN 978-1-56347-939-7, Vancouver, Canada, 2008.

Eschricht, D.; Panek, L.; Thiele, F.; Yan, J.; Michel, U.:
Jet Noise Prediction of a Serrated Nozzle.
In: Proceedings of the 14th AIAA/CEAS Aeroacoustics, AIAA-2008-2971, ISBN 978-1-56347-939-7, Vancouver, Canada, 2008.

Eschricht, D.; Panek, L.; Yan, J.; Thiele, F.; Jacob, M. C.:
Noise prediction of a serrated nozzle using a hybrid approach.
In: 14th International Congress on Sound and Vibration, ISBN 9780733425165, Cairns, Australia, 2007.

Michel, U.; Eschricht, D.; Greschner, B.; Knacke, T.; Mockett, C.; Panek, L.; Thiele, F.; Yan, J.:
Simulation of the sound radiation of turbulent flows with DES.
In: Proceedings of the West-East High Speed Flow Field Conference, Moscow, Russia, 2007.

Panek, L.; Schönwald, N.; Dumbser, M.; Munz, C.-D.; Thiele, F.:
Comparison of Numerical Approaches for the Simulation of Sound Radiation from a Scarfed Inlet.
In: 14th International Congress on Sound and Vibration, ISBN 9780733425165, Cairns, Australia, 2007.

Yan, J.; Panek, L.; Thiele, F.:
Simulation of Jet Noise from a Long-Cowl Nozzle with Serrations.
In: Proceedings of the 13th AIAA/CEAS Aeroacoustics Conference (28th AIAA Aeroacoustics Conference), AIAA 2007-3635, ISBN 978-1-56347-896-3, Rome, Italy, 2007.

Schönwald, N.; Panek, L.; Richter, C.; Thiele, F.:
Investigation of Sound Radiation from a Scarfed Intake by CAA-FWH Simulations Using Overset Grids.
In: Proceedings of the 13th AIAA/CEAS Aeroacoustics Conference (28th AIAA Aeroacoustics Conference), AIAA-2007-3524, ISBN 978-1-56347-896-3, Rome, Italy, 2007.

Yan, J.; Panek, L.; Thiele, F.:
Simulation of Jet Noise from a Long-Cowl Nozzle with Serrations.
In: Proceedings of the 13th AIAA/CEAS Aeroacoustics Conference (28th AIAA Aeroacoustics Conference), AIAA 2007-3635, ISBN 978-1-56347-896-3, Rome, Italy, 2007.

Ewert R.; Emunds, R.; Panek, L.; Thiele, F.; König, D.; Schröder, W.; Kolb, A.; Schneider, M.; Grünewald, M.; Kessler, M.; Lübon, C.; Rose, M.; Deinert, B.:
FREQUENZ Part 1: Numerical Prediction of Aircraft Noise Emissions for Selected Lownoise Design Concepts.
Euronoise 2006, Tampere, Finland, 2006

Richter, C.; Panek, L.; Thiele, F.:
On the Application of CAA-Methods for the Simulation of Indirect Combustion Noise.
In: Proceedings of the 11th AIAA/CEAS Aeroacoustics Conference (26th AIAA Aeroacoustics Conference), AIAA Paper 2005-2919, Monterey, CA, USA, 2005.

Jakob, A.; Möser, M.; Ohly C.; Panek L.:
Aktive Doppelglasfenster: Vergleich zwischen Luft- und Körperschallgegenquellen.
In: Fortschritte der Akustik - DAGA, 2003.

Meine Diplomarbeit

Der Titel der Arbeit lautet "Numerische Simulation der Störungsausbreitung in Düsenströmungen unter Berücksichtigung nichtlinearer Effekte". Stark vereinfacht gesagt bedeutet das, dass die Schall- und Entropieausbreitung in einer durchströmten Düse numerisch simuliert wurde. Es werden folgende Themen genauer erläutert: Euler-Gleichungen, nichtlineare Akustik, Stoßbildung, Störungsansatz, Finite Differenzen, DRP-Schemata, Runge-Kutta-Verfahren, 2N-storage, Metrik, Instabilität, Filterung, Entropielärm usw.

Die Arbeit kann hier heruntergeladen werden:

Der LaTeX-Quellcode mit makefile ist hier:

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Colorful Fluid Dynamics

Sound propagation in an aero-engine inlet

Pressure perturbation	Acoustic intensity streamlines colored with SPL

Subsonic Coaxial Jet

Streamlines colored with velocity

Diffraction of sound waves by a hot spot

Pressure perturbation (movie 840kB)	Temperature distribution

Edge Tone Simulation

Time-dependent velocity

Time-dependent vorticity

Simulation of a whistle

Time-dependent V velocity component

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Tecplot marco for generating movies

movie_macro.mcr

Features:

• works with Tecplot 9.0 for AVI and Tecplot 10.0 for PNG
• output format is PNG or AVI
• many parameters can be specified in header
• start, stop and step can be specified
• loads multiple blocks
• suppresses pop-up window

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Matlab colormaps for Tecplot

To use the colormaps just download the corresponding .map file and load it into Tecplot using "Options>Paste Color Map from file..." in Tecplot360 or "Workspace>Paste Color Map from file..." for older versions. The colormaps are reduced to 22 control points. 50 control points is the upper limit in Tecplot. The files has been generated with this Matlab script: teccolormap.m.