Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Stefan Pröbsting"'
Autor:
Yannian Yang, Yu Liang, Stefan Pröbsting, Pengyu Li, Haoyu Zhang, Benxu Huang, Chaofan Liu, Hailong Pei, Bernd R. Noack
Publikováno v:
Aerospace, Vol 11, Iss 3, p 200 (2024)
In the near future, urban air mobility (UAM) will let an old dream of human society come true: affordable and fast air transportation for almost everyone. Among the various existing designs, the multicopter configuration best combines the advantages
Externí odkaz:
https://doaj.org/article/923b6d2bb6da4baaa9fe7bc689658c6b
Publikováno v:
Journal of Fluid Mechanics. 943
Acoustic emission of a NACA 0012 aerofoil is investigated over a range of free-stream velocities. Acoustic spectra show a dominant tone and two sets of weaker side tones characterised by different frequency intervals. The frequency of the dominant to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3eca45dad25b343dfc0166aa85823976
https://doi.org/10.1017/jfm.2022.427
https://doi.org/10.1017/jfm.2022.427
An unsteady RANS simulation of the performance of an oscillating hydrofoil at a high Reynolds number
Publikováno v:
Ocean Engineering. 274:114097
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7aaf8e69af28de8a69890988f80d20e
https://doi.org/10.1016/j.oceaneng.2023.114097
https://doi.org/10.1016/j.oceaneng.2023.114097
Publikováno v:
Physical Review Fluids. 6
This experimental study characterizes vortex shedding from a sinusoidally pitching hydrofoil at high Reynolds number, reveals the effects of pitching amplitude, reduced frequency, and Reynolds number on the dynamic force responses beyond the linear i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6edc2eaa30fd87b86be17e1111391707
https://doi.org/10.1103/physrevfluids.6.084702
https://doi.org/10.1103/physrevfluids.6.084702
Autor:
Ye Li, Wen Zhong Shen, Zhiteng Gao, Stefan Pröbsting, Deshun Li, Rennian Li, Tongguang Wang, Xiaobo Zheng
Publikováno v:
Gao, Z, Li, Y, Wang, T, Shen, W, Zheng, X, Pröbsting, S, Li, D & Li, R 2021, ' Modelling the nacelle wake of a horizontal-axis wind turbine under different yaw conditions ', Renewable Energy, vol. 172, pp. 263-275 . https://doi.org/10.1016/j.renene.2021.02.140
Recently, actuator line model become popular in studying wind-turbine wakes. However, existing models ignore or inaccurately describe nacelle effects, which have been shown to pose significantly impact on wakes. To address the physics underlying here
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a4157d85c6f47429a577b9c99dcd53b5
https://orbit.dtu.dk/en/publications/5d2fa99a-b75b-4d66-8aa5-6098b34c30a4
https://orbit.dtu.dk/en/publications/5d2fa99a-b75b-4d66-8aa5-6098b34c30a4
Publikováno v:
Physics of Fluids, 32(10)
Two-point velocity statistics near the trailing edge of a controlled diffusion airfoil are obtained, both experimentally and analytically, by decomposing Poisson's equation for pressure into the mean-shear (MS) and turbulence-turbulence (TT) interact
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c1dcaf805cb802b757e37282227f140
https://doi.org/10.1063/5.0021121
https://doi.org/10.1063/5.0021121
Autor:
Mirjam Snellen, Roberto Merino-Martínez, Fulvio Scarano, Dick G. Simons, Francesco Avallone, Stefan Pröbsting, Daniele Ragni, Carlos Arce León, Jesper Madsen
Publikováno v:
Journal of Sound and Vibration, 405
The broadband noise generated by the scattering of turbulent flow at the trailing edge of a NACA 0018 airfoil with trailing edge serrations is investigated, varying both the airfoil angle of attack and serration flap angle. Acoustic emissions from th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::569e4a9c1bb46ca05d19314b629bda4f
https://doi.org/10.1016/j.jsv.2017.05.035
https://doi.org/10.1016/j.jsv.2017.05.035
Autor:
Stefan Pröbsting, A.T. de Jong, Yaoyi Guan, A.H. van Zuijlen, Scott C. Morris, W.C.P. van der Velden
Publikováno v:
Journal of Sound and Vibration. 384:113-129
Efficient tools and methodology for the prediction of trailing-edge noise experience substantial interest within the wind turbine industry. In recent years, the Lattice Boltzmann Method has received increased attention for providing such an efficient
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57145fe7c1433120eeb44cac26bfaf7b
https://doi.org/10.1016/j.jsv.2016.08.005
https://doi.org/10.1016/j.jsv.2016.08.005
Autor:
Stefan Pröbsting, Martina Zamponi, Scott C. Morris, Fulvio Scarano, Yaoyi Guan, Stefano Ronconi
Publikováno v:
International Journal of Aeroacoustics. 15:712-733
Coherent vortex shedding from blunt and beveled trailing edges generates tonal noise, which is usually undesired. To obtain a better understanding of the noise generation under such conditions, the flow field around a beveled trailing edge was charac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c280bc4fd7d11f8af395223289fc23d
https://doi.org/10.1177/1475472x16666633
https://doi.org/10.1177/1475472x16666633
Publikováno v:
Experiments in Fluids. 59
The characteristics of unsteady surface pressure (USP) created by turbulent flow over a family of asymmetrically beveled trailing edges were studied experimentally. The geometries had a trailing edge angle $$\theta =25^\circ$$ with a flat lower surfa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::112da76ba6f08e3c134fef9f6ecc3d83
https://doi.org/10.1007/s00348-018-2572-6
https://doi.org/10.1007/s00348-018-2572-6