Franz Mühle

Technische Universität München
Boltzmannstr. 15
Room 2733
85748 Garching b. München
Tel.: +49 (0)89 289 16689
Email: franz.muehle@tum.de

Research Interests

  • Wind tunnel testing of wind turbine wakes and wind farm control
  • Experimental Fluid Mechanics
  • Wind turbine design
  • Development of wind energy projects
  • Social acceptance of wind energy

Curriculum Vitae

  • 2004: Certificate of Apprenticeship as Plumber, Kreishandwerkerschaft Westmittelfanken, Germany
  • 2009: Dipl.-Ing (FH) in Civil Engineering at the Georg-Simon-Ohm University of Applied Sciences Nuremberg, Germany
  • 2013: M.Sc. in Civil Engineering at Technical University Munich (TUM), Germany. Main focus on Fluid Mechanics and Renewable Energies. Master's Thesis: "Experimental Investigations on a Water Vortex Power Plant"
  • 2013–2014: Project Engineer for Wind Energy at Ingenieurbüro Sing GmbH, Landsberg am Lech, Germany
  • 2018: PhD in Wind Turbine Aerodynamics at Norwegian University of Life Sciences (NMBU), Norway. PhD Thesis: “An experimental study on rotor-wake interactions of wind turbines”
  • 2019–present: Postdoctoral Research Associate, Chair of Wind Energy, TUM

Publications

  • Mühle, F. V., Heckmeier, F. M., Campagnolo, F., and Breitsamter, C.: Wind tunnel investigations of an individual pitch control strategy for wind farm power optimization, Wind Energ. Sci. Discuss. [preprint], doi.org/10.5194/wes-2023-125, in review, 2023.
  • Campagnolo, F., Tamaro, S. Mühle, F and Bottasso C. L.: Wind Tunnel Testing of Combined Derating and Wake Steering, IFAC-PapersOnLine, Volume 56, Issue 2 (2023) 8400–8405, doi.org/10.1016/j.ifacol.2023.10.1034.
  • Nanos, E. M., Bottasso, C. L., Campagnolo, F., Mühle, F., Letizia, S., Iungo, G. V., and Rotea, M. A.: Design, steady performance and wake characterization of a scaled wind turbine with pitch, torque and yaw actuation, Wind Energ. Sci., 7, (2022) 1263–1287, doi:10.5194/wes-7-1263-2022, 2022.
  • Campagnolo F., Castellani F., Natili F., Astolfi D. and Mühle F. Wind Tunnel Testing of Yaw by Individual Pitch Control Applied to Wake Steering. Front. Energy Res. (2022) 10:883889. doi: 10.3389/fenrg.2022.883889
  • Mühle, F. V., Campagnolo, F., Llobell Buigues, J., Bottasso, C. L. Design and testing of a model-scale yaw mechanism for an experimental wind turbine model. Journal of Physics: Conf. Series 2265 (2022) 022094. doi:10.1088/1742-6596/2265/2/022094
  • Bartl, J., Hansen, T., Kuhn, L., Mühle, F., Sætran, L. Vortex interaction in the wake of a two- and three-bladed wind turbine. Journal of Physics: Conf. Series 1669 (2020) 012027 doi:10.1088/1742-6596/1669/1/012027
  • Mühle, F., Bartl, J., Hansen, T., Adaramola, M. S., Sætran, L. An experimental study on the effects of winglets on the tip vortex interaction in the near wake of a model wind turbine. Wind Energy. 2020; 23: 1286– 1300. https://doi.org/10.1002/we.2486
  • Bartl J., Müller A., Landolt A., Mühle F., Vatn M., Oggiano L. and Sætran L.: Validation of the real-time-response ProCap measurement system for full field wake scans behind a yawed model-scale wind turbine, Journal of Physics: Conf. Series 1104 (2018) 012018 doi:10.1088/1742-6596/1104/1/012018
  • Göing J., Bartl J., Mühle F., Sætran L., and Thamsen P. U.: A Detached-Eddy-Simulation study: Proper-Orthogonal-Decomposition of the wake flow behind a model wind turbine, Journal of Physics, Conference Series, vol. 1104 (2017), 012005 doi:10.1088/1742-6596/1104/1/012005
  • Polster F., Bartl J., Mühle F., Thamsen P. U. and Sætran L.: Experimental validation of analytical wake and downstream turbine performance modeling, Journal of Physics, Conference Series, vol. 1104 (2017) 012017 doi:10.1088/1742-6596/1104/1/012017
  • Schottler J., Bartl J., Mühle F., Sætran L., Peinke J. and Hölling M.: Wind tunnel experiments on wind turbine wakes in yaw: Redefining the wake width, Wind Energy Science, vol. 3 issue 1 (2018), pp. 257-273 doi: 10.5194/wes-3-257-2018
  • Bartl J., Mühle F. and Sætran L.: Wind tunnel study on power output and yaw moments for two yaw-controlled model wind turbines, Wind Energy Science, vol. 3 issue 2 (2018), pp. 489-502 doi: 10.5194/wes-3-489-2018
  • Bartl J., Mühle F., Schottler J., Sætran L., Peinke J., Adaramola M. S. and Hölling M.: Wind tunnel experiments on wind turbine wakes in yaw: Effects of inflow turbulence and shear, Wind Energy Science, vol. 3 issue 1 (2018), pp.329-343 doi: 10.5194/wes-3-329-2018
  • Hansen T. and Mühle F.: Winglet Shape Optimisation for a Model-Scale Wind Turbine, Wind Energy, vol. (2018), pp. 1-17 doi: 10.1002/we.2183
  • Mühle F., Schottler J., Bartl J., Futrzynski R., Evans S., Bernini L., Schito P., Draper M., Guggeri A., Kleusberg E., Henningson D., Hölling M., Peinke J., Adaramola M. S. and Sætran L.: Blind test comparison on the wake behind a yawed wind turbine, Wind Energy Science, vol. 3 issue 2 (2018), pp. 883–903, doi: 10.5194/wes-3-883-2018
  • Sjöholm M., Vignaroli A., Agelou N., Nielsen M. B., Mann J., Mikkelsen T., Bolstad H. C., Merz K. O., Sætran L., Mühle F., Tiihonen M. and Lehtomäki V.: Lidars for Wind Tunnels - an IRPWind Joint Experiment Project, Energy Procedia, vol. 137 (2017), pp. 339-345 doi: 10.1016/j.egypro.2017.10.358
  • Schottler J., Mühle F., Bartl J., Peinke J., Adaramola M. S., Sætran L. and Hölling M.: Comparative study on the wake deflection behind yawed wind turbine models, Journal of Physics, Conference Series, vol. 854 (2017) 012032 doi: 10.1088/1742-6596/854/1/012032
  • García L., Vatn M., Mühle F. and Sætran L.: Experiments in the wind turbine far wake for the evaluation of an analytical wake model, Journal of Physics, Conference Series, vol. 854 (2017) 012015 doi: 10.1088/1742-6596/854/1/012015
  • Mühle F., Adaramola M. S. and Sætran L.: The effect of rotational direction on the wake of a wind turbine rotor – an experimental comparison study of aligned co- and counter rotating turbine arrays, Energy Procedia, vol. 137 (2017), pp. 238-245 doi: 10.1016/j.egypro.2017.10.346
  • Mühle F., Adaramola M. S. and Sætran L.: The effect of the number of blades on wind turbine wake – a comparison between 2-and 3-bladed rotors, Journal of Physics, Conference Series, vol. 753, 2016 doi: 10.1088/1742-6596/753/3/032017
  • Mühle F., Rapp C., Mayer O.: Untersuchungen an einem Wasserwirbelkraftwerk, WasserWirtschaft 7/8, 2013