publications

2020

1. STAB

   Unsteady Wake and Tailplane Loads of the Common Research Model in Low Speed Stall

   Waldmann, Andreas, Konrath, Robert, Lutz, Thorsten, and Krämer, Ewald

   2020

   Abs Bib

   Hybrid RANS/LES simulations of the flow around the NASA Common Research Model aircraft configuration were carried out with the focus on understanding the interaction of the separated wake with the tailplane in the presence of massively separated flow on the main wing. Validation of the CFD data using PIV data obtained for the flow conditions at α = 16◦, α = 18◦ and α = 20◦ was carried out, confirming the generally satisfactory performance of the DDES simulations observed in earlier publications. As a next step, the wake characteristics and tailplane forces were evaluated for three angles of attack in order to investigate the flow dynamics in low speed stall. The separation characteristics were found to vary over the span. The wake size and downwash direction varied significantly with higher values of α. The altered wing downwash influenced the tailplane inflow, with the load fluctuations on the latter being significantly affected by the amount of turbulent kinetic energy present in the wake.

   @incollection{dillmann_unsteady_2020,
     abbr = {STAB},
     bibtex_show = {true},
     address = {Cham},
     title = {Unsteady {Wake} and {Tailplane} {Loads} of the {Common} {Research} {Model} in {Low} {Speed} {Stall}},
     volume = {142},
     copyright = {All rights reserved},
     isbn = {978-3-030-25252-6 978-3-030-25253-3},
     url = {http://link.springer.com/10.1007/978-3-030-25253-3_2},
     language = {en},
     urldate = {2022-02-09},
     booktitle = {New {Results} in {Numerical} and {Experimental} {Fluid} {Mechanics} {XII}},
     publisher = {Springer International Publishing},
     author = {Waldmann, Andreas and Konrath, Robert and Lutz, Thorsten and Krämer, Ewald},
     editor = {Dillmann, Andreas and Heller, Gerd and Krämer, Ewald and Wagner, Claus and Tropea, Cameron and Jakirlić, Suad},
     year = {2020},
     doi = {10.1007/978-3-030-25253-3_2},
     note = {Series Title: Notes on Numerical Fluid Mechanics and Multidisciplinary Design},
     pages = {14--24},
     file = {Waldmann et al. - 2020 - Unsteady Wake and Tailplane Loads of the Common Re.pdf:/home/andreas/Zotero/storage/IYI92S2M/Waldmann et al. - 2020 - Unsteady Wake and Tailplane Loads of the Common  Re.pdf:application/pdf}
   }

2018

1. Journal

   Wind Tunnel Support System Influence on NASA Common Research Model at Low-Speed Conditions

   Waldmann, A., Lutz, T., and Krämer, E.

   Journal of Aircraft 2018

   Bib

   @article{waldmannWT:2018,
     bibtex_show = {true},
     abbr = {Journal},
     author = {Waldmann, A. and Lutz, T. and Kr\"amer, E.},
     title = {Wind Tunnel Support System Influence on NASA Common Research Model at Low-Speed Conditions},
     year = {2018},
     journal = {Journal of Aircraft},
     volume = {55},
     number = {5},
     doi = {10.2514/1.C034440},
     pages = {1762-1772}
   }

2016

1. Journal

   Unsteady Wake of the NASA Common Research Model in Low-Speed Stall

   Waldmann, Andreas, Gansel, P. P., Lutz, T., and Krämer, E.

   Journal of Aircraft 2016

   Bib

   @article{waldmann:2016,
     abbr = {Journal},
     bibtex_show = {false},
     author = {Waldmann, Andreas and Gansel, P. P. and Lutz, T. and Kr\"amer, E.},
     title = {Unsteady Wake of the NASA Common Research Model in Low-Speed Stall},
     year = {2016},
     journal = {Journal of Aircraft},
     volume = {53},
     number = {4},
     doi = {10.2514/1.C033413},
     pages = {1073-1086}
   }

2. Conference

   Wind Tunnel Support System Influence on NASA Common Research Model at Low Speed Conditions

   Waldmann, Andreas, Lutz, Thorsten, and Krämer, Ewald

   In 32nd AIAA Aerodynamic Measurement Technology and Ground Testing Conference, AIAA AVIATION Forum 2016

   Bib

   @inproceedings{waldmann:2016_3,
     abbr = {Conference},
     bibtex_show = {true},
     author = {Waldmann, Andreas and Lutz, Thorsten and Kr\"amer, Ewald},
     title = {Wind Tunnel Support System Influence on NASA Common Research Model at Low Speed Conditions},
     eventdate = {2016-06-13/2016-06-17},
     booktitle = {32nd AIAA Aerodynamic Measurement Technology and Ground Testing Conference, AIAA AVIATION Forum},
     year = {2016},
     language = {eng},
     venue = {Washington, D.C.},
     doi = {10.2514/6.2016-3655},
     url = {https://doi.org/10.2514/6.2016-3655}
   }