Zobrazeno 1 - 10
of 107
pro vyhledávání: '"K. Dullenkopf"'
Publikováno v:
Journal of Fluids Engineering. 127:308-316
The unsteady flow field due to blade passing at the pump/turbine interface of a torque converter was studied. The current geometry is wide and has a large outer to inner radius ratio. A laser velocimeter was used to measure the periodic velocity comp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2eae463d3afcd8da4531c2043de76a6f
https://doi.org/10.1115/1.1891150
https://doi.org/10.1115/1.1891150
Publikováno v:
Journal of Engineering for Gas Turbines and Power. 126:809-815
This paper describes an experimental study of the cooling efficiency of a preswirl rotor-stator system equipped with a small number of preswirl nozzles of circular shape, located on a radius equal to that of the receiver disk holes. In the direct tra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a1f4a3307e69f054c2781383a313297b
https://doi.org/10.1115/1.1765124
https://doi.org/10.1115/1.1765124
Autor:
K. Dullenkopf, R. E. Mayle
Publikováno v:
Journal of Turbomachinery. 117:401-406
The effect of length scale in free-stream turbulence is considered for heat transfer in laminar boundary layers. A model is proposed that accounts for an “effective” intensity of turbulence based on a dominant frequency for a laminar boundary lay
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3519b409324af8f7e53dd3fa8ff925eb
https://doi.org/10.1115/1.2835675
https://doi.org/10.1115/1.2835675
Publikováno v:
Infection. 22:143-148
Invasive pulmonary Aspergillus infections are increasingly recognized among severely neutropenic and/or immunosuppressed individuals. As the infections are usually acquired through the inhalation of Aspergillus conidia, at present prevention of invas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96b1550650cf0340659fdbb1dc3bf3ab
https://doi.org/10.1007/bf01739026
https://doi.org/10.1007/bf01739026
Autor:
P. Gorse, T. Ratcliffe, K. Willenborg, K. Dullenkopf, Michael Klingsporn, Sigmar Wittig, S. Tebby
Publikováno v:
Journal of Engineering for Gas Turbines and Power. 130
Within the European research project ATOS (Advanced Transmission and Oil System Concepts) a systematic study of the separation efficiency of a typical aero-engine air/oil separator design was conducted. The main objectives were to obtain a basic unde
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0973e4d664a72608d10866797f806383
https://doi.org/10.1115/1.2795785
https://doi.org/10.1115/1.2795785
Publikováno v:
Volume 4: Heat Transfer, Parts A and B.
Leakage flows between stationary and rotating components are one of the main sources for losses in turbo machines. Therefore, their reduction is a main goal in the design of modern aircraft engines. Contactless seals, mainly labyrinth seals are key e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ff7888e7f59041730aa3e1e061178f0
https://doi.org/10.1115/gt2008-51429
https://doi.org/10.1115/gt2008-51429
Publikováno v:
Volume 4: Heat Transfer, Parts A and B.
The lifetime of aero-engine roller bearings strongly depends on lubrication and particularly on sufficient cooling provided by the oil system of the engine. During the development of advanced engines the overall oilflow has to be minimized to reduce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97729f9a028af21881e298c4606d8a97
https://doi.org/10.1115/gt2008-51281
https://doi.org/10.1115/gt2008-51281
Publikováno v:
Volume 4: Turbo Expo 2007, Parts A and B.
In order to separately describe the dominating loss mechanisms in pre-swirled cooling air delivery systems, discharge, temperature and velocity measurements were performed for numerous designs. Whereas pre-swirl nozzles, as first component, were char
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b873e30dbed4f202bde797d05bd0297
https://doi.org/10.1115/gt2007-27191
https://doi.org/10.1115/gt2007-27191
Publikováno v:
Web of Science
Hydraulic seals are successfully used to seal gas turbine shaft and bearing chambers because of their main advantages: reliable operation with zero leakage. However, due to the temperature limitations of the lubrication oil their application has been
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4206ad2fc91b023bca6e3c56c2939c8
https://doi.org/10.1115/gt2006-90651
https://doi.org/10.1115/gt2006-90651
Publikováno v:
Volume 3: Heat Transfer, Parts A and B.
Within the European research project ATOS (Advanced Transmission and Oil System Concepts) a systematic study of the separation efficiency of a typical aero-engine air/oil separator design was conducted. The main objectives were to obtain a basic unde
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8367fe76597c82bd204d4590f545c3bc
https://doi.org/10.1115/gt2006-90708
https://doi.org/10.1115/gt2006-90708