Contact

Universität Oldenburg
Institute of Physics & ForWind
Küpkersweg 70,
26129 Oldenburg

Prof. Dr. Joachim Peinke
Room, W33 3-302

Fax. +49-(0)441-798-5099
Tel. +49-(0)441-798-5050
Sektr. +49-(0)441-798-5090

Direction

Turbulence, Wind Energy and Stochastics - TWIST

Current publications

L. Neuhaus, M. Wächter, J. Peinke :

The fractal turbulent–non-turbulent interface in the atmosphere

Wind Energ. Sci., 9, 439–452, 2024
DOI: doi.org/10.5194/wes-9-439-2024

Future wind turbines reach unprecedented heights and are affected by wind conditions that have not yet been studied in detail. With increasing height, a transition to laminar conditions with a turbulent–non-turbulent interface (TNTI) becomes more likely. In this paper, the presence and fractality of this TNTI in the atmosphere are studied. Typical fractalities known from ideal laboratory and numerical studies and a frequent occurrence of the TNTI at heights of multi-megawatt turbines are found.

L. Neuhaus, M. Hölling, W. Bos, J. Peinke :

Generation of Atmospheric Turbulence with Unprecedentedly Large Reynolds Number in a Wind Tunnel

Physical Review Letters 11 Sep 2020 Vol. 125, Iss. 15, Pg. 154503
DOI: doi.org/10.1103/PhysRevLett.125.154503

Press releases: 
uol.de/aktuelles/artikel/sturm-im-windkanal-4514

A. Fuchs, S. M. D. Queirós, P. G. Lind, A. Girard, F. Bouchet, M. Wächter, and J. Peinke:

Small scale structures of turbulence in terms of entropy
and fluctuation theorems

Physical Review Fluids 11 Mar 2020 Vol. 5, Iss. 3, Pg. 034602
DOI: doi.org/10.1103/PhysRevFluids.5.034602

P. Veers, K. Dykes, E. Lantz, S. Barth, C. L. Bottasso, O. Carlson, A. Clifton, J. Green, P. Green, H. Holttinen, D. Laird, V. Lehtomäki, J. K. Lundquist, J. Manwell, M. Marquis, C. Meneveau, P. Moriarty, X. Munduate, M. Muskulus, J. Naughton, L. Pao, J. Paquette, J. Peinke, A. Robertson, J. Sanz Rodrigo, A. M. Sempreviva, J. C. Smith, A. Tuohy, R. Wiser:
Grand challenges in the science of wind energy
Science  25 Oct 2019: Vol. 366, Issue 6464, eaau2027
DOI: 10.1126/science.aau2027

Press release "Challenges to Wind Energy Potential"

J. Peinke, M.R.R. Tabar, M. Wächter:
The Fokker-Planck Approach to Complex Spatiotemporal Disordered Systems
Annual Review of Condensed Matter Physics 2019 10:1
doi.org/10.1146/annurev-conmatphys-033117-054252

H. Haehne, J. Casadiego, J. Peinke, M. Timme:
Detecting Hidden Units and Network Size from Perceptible Dynamics
Phys. Rev. Lett. 122, 158301
doi.org/10.1103/PhysRevLett.122.158301

2017: 100 years of Fokker-Planck-Equation

"The area of turbulence is one of the most challenging research fields in modern science that, despite remaining unsolved, has led to many new innovative concepts and new research fields in a number of disciplines."

"I became interested in turbulent liquid and gas flows at the end of the thirties. From the very beginning it was clear that the theory of random functions of many variables (random fields), whose development only started at that time, must be the underlying mathematical technique. Moreover, I soon understood that there was little hope of developing a pure, closed theory, and because of the absence of such a theory the investigation must be based on hypotheses obtained by processing experimental data."

[1] Planck, M. (1917). "Über einen Satz der statistischen Dynamik und seine Erweiterung in der Quantentheorie". Sitzungsber. Preuss. Akad. Wiss. *24*

[2] By Konrad Jacobs (owpdb.mfo.de/detail?photoID=7493) [CC BY-SA 2.0 de (creativecommons.org/licenses/by-sa/2.0/de/deed.en)], via Wikimedia Commons

(Changed: 26 Feb 2024)  | 
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