Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Lars Wein"'
Publikováno v:
Journal of the Global Power and Propulsion Society. 6:227-237
Roughness generally consists of structures that are either oriented anisotropic in directions tangential to the surface or isotropic, or a superposition of both components. Interactions between the roughness elements exert a significant influence on
Publikováno v:
Journal of the Global Power and Propulsion Society. 5:177-190
This paper presents those flow parameters at which coherent structures appear in the blade tip cavities of shrouded turbine blades. To the authors’ knowledge, this is reported for the first time in the open literature. The unsteady flow in a shroud
Publikováno v:
Journal of the Global Power and Propulsion Society. :1-16
Defects in the hot-gas path of aero engines have been shown to leave typical signatures in the density distribution of the exhaust jet. These signatures are superposed when several defects are present. For improved maintenance and monitoring applicat
Validation of RANS Turbulence Models for Labyrinth Seal Flows by Means of Particle Image Velocimetry
Autor:
Rainer Hain, Thomas Fuchs, Lars Wein, Christian J. Kähler, Tim Kluge, Florian Herbst, Roman Schmierer, Joerg R. Seume
Publikováno v:
Volume 10A: Structures and Dynamics.
Accurate prediction of labyrinth seal flows is important for the design and optimisation of turbomachinery. However, the prediction of such flows with RANS turbulence models is still lacking. The identification of modelling deficits and the developme
Publikováno v:
Proceedings of Global Power & Propulsion Society.
Publikováno v:
Volume 2A: Turbomachinery.
This paper provides an analysis and discussion of the development of rotor wakes, and their influence on the boundary layer along a downstream axial compressor vane. Numerical investigations are carried out by means of unsteady RANS and Scale-Adaptiv
Publikováno v:
Volume 2B: Turbomachinery.
The accurate prediction of cavity flows is of importance to the turbomachinery design process. However, cavity flows are complex. It is known, that RANS models tend to struggle with the prediction of cavity flows and the flow phenomena associated wit
Publikováno v:
Volume 2B: Turbomachinery.
The flow field in modern axial turbines is non-trivial and highly unsteady due to secondary flow and blade row interaction. In recent years, existing design-tools like two-dimensional flow solvers as well as fully three-dimensional CFD methods have b
Autor:
Ailiana Santosa, Yue Zhang, Lars Weinehall, Genming Zhao, Na Wang, Qi Zhao, Weibing Wang, Nawi Ng
Publikováno v:
BMC Public Health, Vol 21, Iss 1, Pp 1-5 (2021)
An amendment to this paper has been published and can be accessed via the original article.
Externí odkaz:
https://doaj.org/article/7bf4a1fc3a54431abf2b1a4c8bf47a29
Publikováno v:
Nursing Open, Vol 8, Iss 1, Pp 130-139 (2021)
Abstract Aim The aim was to investigate assistant nurses’ perceptions of how working with national quality registries affected their work situation in care of older people. Design Qualitative interview study. Methods Sixteen semi‐structured inter
Externí odkaz:
https://doaj.org/article/99268e8af1624ea7b7b6f42cdae57edc