Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Björn Greschner"'
Publikováno v:
Marc C. Jacob
The main objective of the present investigation is the analysis of the modelling capabilities of shear layer and boundary layer flows by Improved Delayed Detached Eddy Simulation (IDDES [4]) and standardDelayed Detached Eddy Simulation (DDES [3]).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::2a29b6c116dbf5334ebac8d1de2aaa36
https://oatao.univ-toulouse.fr/24062/
https://oatao.univ-toulouse.fr/24062/
Publikováno v:
19th AIAA/CEAS Aeroacoustics Conference.
Broadband noise generated by a fan is studied numerically using a novel variant of the DES the Improved Delayed Detached Eddy Simulation (IDDES). The IDDES is used together with the Chimera grid overset technique for the independent griding of the ro
Publikováno v:
30th AIAA Applied Aerodynamics Conference.
The NASA tandem cylinder benchmark case (L/D = 3.7) is studied numerically using novel variants of DES the Delayed Detached Eddy Simulation (DDES) and the Improved Delayed Deteched Eddy Simulation (IDDES). The ow Mach number is 0.1285 and the Reynold
Autor:
Björn Greschner, Frank Thiele
Publikováno v:
18th AIAA/CEAS Aeroacoustics Conference (33rd AIAA Aeroacoustics Conference).
Autor:
Frank Thiele, Björn Greschner
Publikováno v:
17th AIAA/CEAS Aeroacoustics Conference (32nd AIAA Aeroacoustics Conference).
Broadband noise generated by a fan (DLR Berlin Fan Rig) is studied numerically using a novel variant of the DES the Improved Delayed Detached Eddy Simulation (IDDES). The full rotating geometry is simpli ed to an rotor-stator-cascade to analyse in de
Publikováno v:
Progress in Hybrid RANS-LES Modelling ISBN: 9783642141676
Detached eddy simulation (DES) is shown to be a suitable method for the simulation of the sound generation of turbulent flows, because it provides access to the resolved turbulent scales at minimal computational cost. The near-wall region is solved e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09f4f9807b3ef66330fc420b0fac25cb
https://doi.org/10.1007/978-3-642-14168-3_5
https://doi.org/10.1007/978-3-642-14168-3_5
Publikováno v:
International Journal of Aeroacoustics
International Journal of Aeroacoustics, Multi-Science Publishing, 2010, 9, pp.329-355. ⟨10.1260/1475-472X.9.3.329⟩
International Journal of Aeroacoustics, Multi-Science Publishing, 2010, 9, pp.329-355. ⟨10.1260/1475-472X.9.3.329⟩
A successful comparison between CFD-CAA and measurements of trailing edge noise is shown for a highly loaded and cambered NACA 5510 airfoil at a chord based Reynolds number of aprox. 1 million placed in a quiet low Mach number flow. The simulation is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb32fc6126b91517da2f178c3065c6c3
https://hal.archives-ouvertes.fr/hal-00566042/file/Greschner_IJA_2010.pdf
https://hal.archives-ouvertes.fr/hal-00566042/file/Greschner_IJA_2010.pdf
Publikováno v:
Notes on Numerical Fluid Mechanics and Multidisciplinary Design ISBN: 9783540899556
In this article the work conducted at ISTA and LMFA during the French/German research project Noise Generation in Turbulent Flows is presented. The hybrid approach applied for the noise prediction at ISTA consists of a flow simulation which is couple
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4ac8a045c0d6189a02c17f8460c19a6
https://doi.org/10.1007/978-3-540-89956-3_6
https://doi.org/10.1007/978-3-540-89956-3_6
Publikováno v:
eCAADe proceedings.
Publikováno v:
14th AIAA/CEAS Aeroacoustics Conference (29th AIAA Aeroacoustics Conference)
14th AIAA/CEAS Aeroacoustics Conference (29th AIAA Aeroacoustics Conference), May 2008, Vancouver, Canada. ⟨10.2514/6.2008-2899⟩
14th AIAA/CEAS Aeroacoustics Conference (29th AIAA Aeroacoustics Conference), May 2008, Vancouver, Canada. ⟨10.2514/6.2008-2899⟩
This paper presents a selection of acoustic far field, unsteady aerodynamic and mean flow results obtained from a variety of unsteady codes on a low Mach rod-airfoil test case. These codes are all applicable to complex geometries such as encountered