Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Benjamin Plogmann"'
Autor:
Jörg Brückner, Ruben Henning, Winfried Kuhnt, Thomas Küttner, Götz Reinhardt, Benjamin Plogmann, Ulrich Projahn, Thomas Wahl, Sebastian-Paul Wenzel
Publikováno v:
Bosch Fachinformation Automobil ISBN: 9783658250713
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::493a956c73908ae06633f37f08872295
https://doi.org/10.1007/978-3-658-25072-0_9
https://doi.org/10.1007/978-3-658-25072-0_9
Publikováno v:
Procedia IUTAM. 14:423-432
The present study is devoted to nonlinear (resonant) mode interactions in the wake of a medium height, cylindrical roughness element, which is placed in a laminar, airfoil boundary layer. The roughness element causes a considerable mean flow distorti
Publikováno v:
Journal of Fluid Mechanics. 758:238-286
Roughness-induced transition is one of the main parameters contributing to performance loss of airfoils. Within this paper, the disturbance evolution downstream of a single, cylindrical roughness element, which is placed in a laminar boundary layer i
Publikováno v:
Notes on Numerical Fluid Mechanics and Multidisciplinary Design ISBN: 9783319272788
The present study is devoted to nonlinear mode interactions in the wake of a medium height, isolated roughness placed in a laminar, airfoil boundary layer. Upstream of the roughness low-amplitude, fundamental TS-wave bands are excited. Nonlinear inte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5511af129ce61040c232e1921da9bcdb
https://doi.org/10.1007/978-3-319-27279-5_22
https://doi.org/10.1007/978-3-319-27279-5_22
Publikováno v:
Experiments in Fluids. 56
The effect of an isolated, cylindrical roughness on the stability of an airfoil boundary layer has been studied based on particle image velocimetry and hot-wire anemometry. The investigated roughness elements range from a sub-critical to a super-crit
Publikováno v:
44th AIAA Fluid Dynamics Conference.
Publikováno v:
Notes on Numerical Fluid Mechanics and Multidisciplinary Design ISBN: 9783319031576
Roughness induced transition in the leading edge region of airfoils is one of the challenges in the design of highly efficient wind turbine blades especially with respect to various inflow turbulence levels. The present experimental investigation dis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30a1f2f5cdd653c7b47055c4784c2815
https://doi.org/10.1007/978-3-319-03158-3_17
https://doi.org/10.1007/978-3-319-03158-3_17
Autor:
W. Würz, Benjamin Plogmann
Publikováno v:
Experiments in Fluids. 54
Aeroacoustic measurements on two NACA 0012 airfoil sections with different chord length and sharp trailing edge were conducted at the Laminar Wind Tunnel (LWT) of the University of Stuttgart. The LWT is a closed test section wind tunnel with a very l
Publikováno v:
Experiments in Fluids. 54
Discrete frequency tones in the trailing edge noise spectra of NACA 0012 airfoils are investigated with the Coherent Particle Velocity method. The Reynolds number and angle of attack range, in which these discrete frequency tones are present, are con
Publikováno v:
42nd AIAA Fluid Dynamics Conference and Exhibit.
Surface roughness elements in the leading edge region of airfoils can cause laminar to turbulent boundary layer transition resulting in a loss in lift and a significant increase in aerodynamic drag. Especially wind turbine blades are affected since t