Zobrazeno 1 - 10
of 132
pro vyhledávání: '"Reinhard Niehuis"'
Publikováno v:
Sensors, Vol 22, Iss 2, p 657 (2022)
In this paper, the authors demonstrate the application of a modified Ru(phen)-based temperature-sensitive paint which was originally developed for the evaluation of unsteady aero-thermodynamic phenomena in high Mach number but short duration experime
Externí odkaz:
https://doaj.org/article/a21bb8b1aac249b5b57cb75b0b618a18
Autor:
Reinhard Niehuis, Martin Bitter
Publikováno v:
International Journal of Turbomachinery, Propulsion and Power, Vol 6, Iss 4, p 41 (2021)
Since its first operation in 1956 at DFL Braunschweig and after its movement to Munich, the High-Speed Cascade Wind Tunnel (HGK) at Bundeswehr University Munich is intensively used for fundamental and application-oriented research on aero-thermodynam
Externí odkaz:
https://doaj.org/article/ac8ef773280f4b23bfa99eab7b5d596d
Publikováno v:
International Journal of Turbomachinery, Propulsion and Power, Vol 6, Iss 3, p 30 (2021)
Variable inlet guide vanes (VIGVs) are most commonly used as the major control unit of integrally geared centrifugal compressors (IGCCs). In order to enhance the efficient operating range of the compressor, the loss mechanisms and utilization limits
Externí odkaz:
https://doaj.org/article/0cf39d67a9fe433dba19aaa66677dcfb
Autor:
David Engelmann, Martin Sinkwitz, Francesca di Mare, Björn Koppe, Ronald Mailach, Jordi Ventosa-Molina, Jochen Fröhlich, Tobias Schubert, Reinhard Niehuis
Publikováno v:
International Journal of Turbomachinery, Propulsion and Power, Vol 6, Iss 2, p 9 (2021)
This article provides a summarizing account of the results obtained in the current collaborative work of four research institutes concerning near-wall flow in turbomachinery. Specific questions regarding the influences of boundary layer development o
Externí odkaz:
https://doaj.org/article/c5e7b01a37704bd38b15f0dc09910b7a
Publikováno v:
Journal of the Global Power and Propulsion Society, Vol 2 (2018)
Integrated propulsion plays a major role in future civil and military aircraft design. A key component of these systems are highly bent intake geometries. As the flow passes through such ducts, combined total pressure and swirl distortions are genera
Externí odkaz:
https://doaj.org/article/9e6ad30bcf3948b48d181094d3b25a3e
Publikováno v:
Journal of the Global Power and Propulsion Society, Vol 2 (2018)
Five-hole-probes are common use in turbomachinery flow investigations, even though, inserting a probe into a flow field inevitably induces perturbations to the flow which can falsify the measurement results, especially when exposed to transonic flows
Externí odkaz:
https://doaj.org/article/11f9887d003540f8aa8f218cf31c8805
Publikováno v:
International Journal of Turbomachinery, Propulsion and Power, Vol 3, Iss 1, p 8 (2018)
A highly loaded turbine exit guide vane with active boundary layer control was investigated experimentally in the High Speed Cascade Wind Tunnel at the University of the German Federal Armed Forces, Munich. The experiments include profile Mach number
Externí odkaz:
https://doaj.org/article/77e1fef201ef41cfa292166d0f452171
Publikováno v:
International Journal of Turbomachinery, Propulsion and Power, Vol 3, Iss 1, p 5 (2018)
Secondary flow and loss development in the T106Div-EIZ low-pressure turbine cascade are investigated utilizing (U)RANS simulations in cases with and without periodically incoming wakes at M a 2 t h = 0 . 59 and R e 2 t h = 2 × 10 5 . The predictions
Externí odkaz:
https://doaj.org/article/1577c2fcd7b44766aeb3ca37e2fd2b78
Autor:
Jakob P. Haug, Reinhard Niehuis
Publikováno v:
International Journal of Turbomachinery, Propulsion and Power, Vol 3, Iss 1, p 7 (2018)
This article reports on systematic numerical studies on an axial compressor stage with distorted inflow. Four operating points at two speedlines were simulated with an inflow distortion generated by a 120 ∘ -sector segment with a wedge-type cross-s
Externí odkaz:
https://doaj.org/article/d75c77263ff84e9f9a5adcb73b0625b3
Publikováno v:
International Journal of Turbomachinery, Propulsion and Power, Vol 3, Iss 1, p 6 (2018)
Flow measurement using a linear compressor or turbine cascade is a well-established technique to characterize the flow in turbomachines with a certain degree of abstraction. A common way to obtain a general characterization of the flow is to measure
Externí odkaz:
https://doaj.org/article/6b9e6b39bb83405db6258f9753ff6693