Zobrazeno 1 - 10
of 302
pro vyhledávání: '"W. Nitsche"'
Publikováno v:
Notes on Numerical Fluid Mechanics and Multidisciplinary Design ISBN: 9783319645186
The influence of spanwise periodic steady blowing or suction on the development of stationary crossflow vortices is investigated experimentally in a three-dimensional boundary-layer flow. Different jet-outlet geometries were tested to control the nat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61dfb85134d61f66d8dd5fc19f6dbbf9
https://doi.org/10.1007/978-3-319-64519-3_24
https://doi.org/10.1007/978-3-319-64519-3_24
Publikováno v:
Journal of Microelectronics and Electronic Packaging. 6:211-218
Drag reduction on airfoils using arrays of micro-actuators is one application of so-called Aero-MEMS. These microactuators interact with TS instabilities (Tollmien-Schlichting waves) inside a transitional boundary layer by superimposing artificially
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f938b312566befdc0269f880e33756a
https://doi.org/10.4071/1551-4897-6.4.211
https://doi.org/10.4071/1551-4897-6.4.211
Publikováno v:
Heat and Mass Transfer. 45:193-206
The paper concentrates on increasing convective heat transfer due to periodically pulsating impinging air jets. A maximum enhancement rate of cooling effectiveness up to 20% could be detected at an excitation Strouhal number of Sr = 0.82 when using a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c3cf2b4cc5ead40387ee6248e183aee
https://doi.org/10.1007/s00231-008-0410-8
https://doi.org/10.1007/s00231-008-0410-8
Autor:
W. Nitsche, O. Meyer
Publikováno v:
Progress in Aerospace Sciences. 40:119-141
This article reviews the progress in the development of adaptive wind tunnel wall technology during the last decade. As the development of adaptive wall test sections (AWTS) reached a ‘proof of concept’ status in the mid-1990s, the follow-up rese
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af4bb36807b71154161bd482ecb4b703
https://doi.org/10.1016/j.paerosci.2004.02.001
https://doi.org/10.1016/j.paerosci.2004.02.001
Publikováno v:
The Aeronautical Journal. 105:571-580
The flow in many wind tunnel experiments is affected by the presence of test section walls. The resulting interference can be minimised by correcting the measured model pressures, or by influencing the model flow directly with the use of ventilated o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4cd6370786d3b09fe982bcdcb782fe68
https://doi.org/10.1017/s0001924000012513
https://doi.org/10.1017/s0001924000012513
Autor:
J . W. Nitsche
Publikováno v:
Materiales de Construccion, Vol 25, Iss 160, Pp 31-39 (1975)
Not available
Externí odkaz:
https://doaj.org/article/bba143fa1cd64568b4807c9b36305fbc
Publikováno v:
Notes on Numerical Fluid Mechanics and Multidisciplinary Design ISBN: 9783642356797
This paper describes the impact of the actuator jet angle on the resulting reattachment process. Experimental investigations in a planar half-diffuser using pulsed excitation were carried out. Three different jet angles were employed to explore the f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::731c7923592162e25d2c802b18b8e508
https://doi.org/10.1007/978-3-642-35680-3_18
https://doi.org/10.1007/978-3-642-35680-3_18
Autor:
W. Nitsche, T. Grund
Publikováno v:
Notes on Numerical Fluid Mechanics and Multidisciplinary Design ISBN: 9783642356797
This paper presents active flow control results using periodic excitation on a wing section with a plain flap of a Stemme S10 glider configuration for wind tunnel and flight tests. A periodic pulsating jet, coupled in from the suction side of the fla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8136927a095c32d51b26805be4f1d909
https://doi.org/10.1007/978-3-642-35680-3_15
https://doi.org/10.1007/978-3-642-35680-3_15
Autor:
W. Nitsche, S. Blume
Publikováno v:
Notes on Numerical Fluid Mechanics and Multidisciplinary Design ISBN: 9783642142420
A wind tunnel test section setup is described, which allows an automated analysis and optimization of the aerodynamic performance of two-dimensional three-element high-lift systems by varying the slat and flap settings. The gap, overlap and angle of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a60b781dea26e9f3a98a8444bfaa0e3b
https://doi.org/10.1007/978-3-642-14243-7_39
https://doi.org/10.1007/978-3-642-14243-7_39
Publikováno v:
2008 IEEE Sensors.
Design, fabrication, and characterization of novel MEMS pressure sensors featuring integrated wall hot-wire sensors and sealed through silicon vias with back side bond pads are presented. Sensor chips are realized by silicon micromachining. They cons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cdc36fccc4ea55b3142593344b18b1d7
https://doi.org/10.1109/icsens.2008.4716746
https://doi.org/10.1109/icsens.2008.4716746