Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Heinrich VOLLMERS"'
Autor:
Heinrich Vollmers
Publikováno v:
Measurement Science and Technology. 12:1199-1207
Efficient and well adapted algorithms are necessary to analyse the large number of vector fields generated when observing time dependent flow fields. This paper discusses several possibilities of vortex detection and characterization from two-dimensi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1eab25973afd104d13a334d953881413
https://doi.org/10.1088/0957-0233/12/8/329
https://doi.org/10.1088/0957-0233/12/8/329
Publikováno v:
New Results in Numerical and Experimental Fluid Mechanics V ISBN: 9783540332862
Flow field measurements with a stereoscopic PIV-system were performed behind the DLR-ALVAST half-model in a high lift configuration with and without an ultrahigh bypass ratio engine simulator in the DNW-NWB Low-Speed Wind Tunnel Braunsehweig at Maeh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48524f515496a6804bbcb3bd755c1e41
https://doi.org/10.1007/978-3-540-33287-9_3
https://doi.org/10.1007/978-3-540-33287-9_3
Autor:
Heinrich Vollmers, Feng Bao
This paper deals with the end-effect problem encountered in the wake vortex researches in test facilities with limited length. The disturbances produced during the launching and recovering of a/c models may propagate along the vortex core and introdu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c01818747ac403ba4fa0048c1f59f83
https://elib.dlr.de/12823/
https://elib.dlr.de/12823/
Autor:
Heinrich Vollmers, Roland Stuff
Publikováno v:
41st Aerospace Sciences Meeting and Exhibit.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78da512178f3e85823d9168f90da9395
https://doi.org/10.2514/6.2003-1108
https://doi.org/10.2514/6.2003-1108
Publikováno v:
41st Aerospace Sciences Meeting and Exhibit.
The aim of this paper is to present the Collaborative Research Programme on aircraft wake vortices between ONERA an d DLR which was launched in 1999. Results of experimental investigations carried out within this framework are provided, with special
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4698543383287a2057756f18735de8cf
https://doi.org/10.2514/6.2003-938
https://doi.org/10.2514/6.2003-938
Autor:
Andreas Schröder, Kurt Pengel, Jürgen Kompenhans, T. Dewhirst, Markus Raffel, Christian J. Kähler, L. Dieterle, Olaf Ronneberger, Klaus Ehrenfried, Christian Willert, Heinrich Vollmers
Publikováno v:
Scopus-Elsevier
Particle image velocimetry (PIV) is increasingly used for aerodynamic research and development. The PIV technique allows the recording of a complete flow velocity field in a plane of the flow within a few microseconds. Thus, it provides information a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4be699a26e5d600c4961a216931e53ad
https://elib.dlr.de/13472/
https://elib.dlr.de/13472/
Publikováno v:
Fluid Mechanics and Its Applications ISBN: 9789401059442
The characterization of organized structures is discussed with emphasis on changes of the flows’ topologies. The changes may be monitored in physical space. However, structural changes also appear in the space of invariants of various vector-gradie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99780b0bc14f046339f12a381e0855d9
https://doi.org/10.1007/978-94-011-4601-2_20
https://doi.org/10.1007/978-94-011-4601-2_20
Autor:
Wolfgang Geißler, Heinrich Vollmers
Publikováno v:
Bluff-Body Wakes, Dynamics and Instabilities ISBN: 9783662004166
The data to be analysed have been created by a numerical simulation of two-dimensional flows over oscillating airfoils NACA 23012 and a NACA 0012 airfoil with buffet. The numerical method solves the unsteady two-dimensional Navier-Stokes equations on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6077547d723dd365bdf36478ff2736c4
https://doi.org/10.1007/978-3-662-00414-2_49
https://doi.org/10.1007/978-3-662-00414-2_49
Publikováno v:
Hypersonic Flows for Reentry Problems ISBN: 9783642779244
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5dead1d68ec251b9566d16a336c2692
https://doi.org/10.1007/978-3-642-77922-0_42
https://doi.org/10.1007/978-3-642-77922-0_42
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