Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Heinrich Stüer"'
Publikováno v:
International Journal of Turbomachinery, Propulsion and Power, Vol 8, Iss 4, p 38 (2023)
In this work, the vibration response of an academic free-standing turbine blisk is analyzed in regard to transient resonance passages. Measurement data are recorded using strain gauges and tip timing to evaluate the blades first bending mode both lin
Externí odkaz:
https://doaj.org/article/9f9967449e214e8bad278f1e94acd24d
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy. 228:402-415
Rotating stall and rotating instability (as it is often called) have been extensively studied in compressors and fan stages. Though less known, they are relevant to steam turbines operated at very low mass flow conditions. In the present work, flow u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43d5fc482ff49c9cb0cb4038cdbb5863
https://doi.org/10.1177/0957650914524746
https://doi.org/10.1177/0957650914524746
Autor:
Christian Siewert, Heinrich Stüer
Publikováno v:
Journal of Engineering for Gas Turbines and Power. 139
It is well known that the vibrational behavior of a mistuned bladed disk differs strongly from that of a tuned bladed disk. A large number of publications dealing with the dynamics of mistuned bladed disks are available in the literature. The vibrati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ed7e10aaa299342cb9bf1057f1ee8e0
https://doi.org/10.1115/1.4034151
https://doi.org/10.1115/1.4034151
Autor:
Christian Siewert, Heinrich Stüer
Publikováno v:
Volume 1B: Marine; Microturbines, Turbochargers and Small Turbomachines; Steam Turbines.
It is well-known that the vibrational behavior of a mistuned bladed disk differs strongly from that of a tuned bladed disk. A large number of publications dealing with the dynamics of mistuned bladed disks is available in the literature. The vibratio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0aebabbd10a7771fb2e35e127fae57cb
https://doi.org/10.1115/gt2014-25654
https://doi.org/10.1115/gt2014-25654
Autor:
Stefan Blaser, Heinrich Stüer
Publikováno v:
Flow, Turbulence and Combustion. 64:215-232
The velocity data obtained by many 3D measurement methods such as particle tracking velocimetry (PTV) are not regularly distributed in3D space. We revised three numerical schemes to interpolate the scattered velocity vectors to a regularly spaced gri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b3d11e56a6f26536ed5145b3ad330df
https://doi.org/10.1023/a:1009904013148
https://doi.org/10.1023/a:1009904013148
Publikováno v:
Measurement Science and Technology. 10:904-913
An optical whole-field 3D particle tracking velocimetry tool for diagnostics in microgravity experiments is presented. To demonstrate the potential of the technique it is applied to a Marangoni convection experiment and to a flow within a fluid colum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ea6af772e53796ea0853faec2240cd6
https://doi.org/10.1088/0957-0233/10/10/311
https://doi.org/10.1088/0957-0233/10/10/311
Autor:
Heinrich Stüer, Albert Gyr
Publikováno v:
Journal of Non-Newtonian Fluid Mechanics. 62:207-224
The multifractality as well as the asymptotic values of the moments are used to characterize the differences of the intermittent properties of u′2, v′2, (u′v′)2 and ( ∂u′ ∂t ) 2 for three different turbulent flows at the same flow condi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37ce9c5ab02606fb60d2192b7e241325
https://doi.org/10.1016/0377-0257(95)01400-4
https://doi.org/10.1016/0377-0257(95)01400-4
Publikováno v:
Journal of Turbomachinery. 135
In this study, an effective yet numerically simple approach for a coupled design of the last stage running blade and diffuser is presented. The method applied uses a 2-dimensional streamline curvature code combined with a boundary layer solver for th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::820ba4169431b0ca6bb26fd63d153298
https://doi.org/10.1115/1.4006335
https://doi.org/10.1115/1.4006335
Publikováno v:
Volume 6: Oil and Gas Applications; Concentrating Solar Power Plants; Steam Turbines; Wind Energy.
The rotating instability phenomenon in a last stage of steam turbines at low mass flow conditions has been previously identified experimentally. Recently, the rotating instability has also been numerically studied in a whole annulus domain on 2D blad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd5f866bb520a443420f9e1edfe1786d
https://doi.org/10.1115/gt2012-69045
https://doi.org/10.1115/gt2012-69045
Autor:
Christian Frey, Hans-Peter Kersken, Oliver Pütz, Stefan Schmitt, Heinrich Stüer, Graham Ashcroft
Publikováno v:
Volume 7: Structures and Dynamics, Parts A and B.
This is the first of two papers describing the validation o a tool chain for flutter prediction. This first paper provides an overview of the numerical methods and their verification. The second paper presents the detailed validation of the tool
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ea2443032802c8cf3fae1c2b36e163d
https://doi.org/10.1115/gt2012-68018
https://doi.org/10.1115/gt2012-68018