Zobrazeno 1 - 10
of 91
pro vyhledávání: '"Friedrich-Karl Benra"'
Publikováno v:
International Journal of Turbomachinery, Propulsion and Power, Vol 5, Iss 2, p 7 (2020)
In the side-chambers of radial turbomachinery, which are rotor–stator cavities, complex flow patterns develop that contribute substantially to axial thrust on the shaft and frictional torque on the rotor. Moreover, leakage flow through the side-cha
Externí odkaz:
https://doaj.org/article/3eaeafa355cc4456aae321ada8609a78
Publikováno v:
International Journal of Turbomachinery, Propulsion and Power, Vol 3, Iss 2, p 9 (2018)
In radial pumps and turbines, the centrifugal through-flow in both the front and the back chambers is quite common. It strongly impacts the core swirl ratio, pressure distribution, axial thrust and frictional torque. In order to investigate these rel
Externí odkaz:
https://doaj.org/article/854cdfc49d82438a91fc92466b4b5eac
Publikováno v:
International Journal of Turbomachinery, Propulsion and Power, Vol 2, Iss 4, p 18 (2017)
Daily and Nece distinguished four flow regimes in an enclosed rotor-stator cavity, which are dependent on the circumferential Reynolds number and dimensionless axial gap width. A diagram of the different flow regimes including the respective mean pro
Externí odkaz:
https://doaj.org/article/1a0dcab258684a6cb13b90d91a6fdda6
Publikováno v:
Journal of Applied Mathematics, Vol 2011 (2011)
The interaction between fluid and structure occurs in a wide range of engineering problems. The solution for such problems is based on the relations of continuum mechanics and is mostly solved with numerical methods. It is a computational challenge t
Externí odkaz:
https://doaj.org/article/61d661c6f4aa483bbb768a03c239a83d
Publikováno v:
International Journal of Rotating Machinery, Vol 2007 (2007)
Numerical simulations on impeller-diffuser interactions in radial diffuser pumps are conducted to investigate the unsteady flow, and more attention is paid to pressure fluctuations on the blade and vane surfaces. Calculations are performed at differe
Externí odkaz:
https://doaj.org/article/2c480034b1274912a8fbbe2806d52a39
Publikováno v:
Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering.
High cycle fatigue is a continuous research topic within the turbomachine community. One field of the investigations is the fluid-structure interaction of 2-D impellers, which can be simplified as disks with their surrounding side cavities. In modern
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::763f3f258b4a6c12c9675aa2fe137754
https://doi.org/10.1115/gt2021-58782
https://doi.org/10.1115/gt2021-58782
Publikováno v:
European Conference on Turbomachinery Fluid Dynamics and Thermodynamics.
In order to separate the oil-lubricated bearing side of a turbomachine from the operating medium using a gas, sealants are subject to very high requirements. Aerostatic seals are considered to be very robust sealing systems and frequently used in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3aa48a14273c0cd4180135c1aa60f6b
https://doi.org/10.29008/etc2021-541
https://doi.org/10.29008/etc2021-541
Flexible, fast and reliable design tools are essential in turbomachinery design process. Especially off-design performance characteristics of stationary gas turbines have become more important due to the increase of renewable powers in the last two d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d26f2dbf84fe7103ef1df269478bdf16
https://www.euroturbo.eu/publications/proceedings-papers/ETC2021-661/
https://www.euroturbo.eu/publications/proceedings-papers/ETC2021-661/
In this paper the development and validation of a new meridional throughflow solver for the analysis of multistage axial turbines is presented. The quasi-three-dimensional finite-volume solver named tFlow is based on the inviscid Euler equations. To
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::19b7ea0bc22a21809a777f91aa807373
https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&origin=inward&scp=85099784199
https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&origin=inward&scp=85099784199
Publikováno v:
Scopus-Elsevier
In this paper droplet deposition in radial turbines used for waste heat recovery in the chemical industry is investigated. During expansion, the water vapour in the working fluid undergoes sub-cooling, at a certain point a cloud of fine droplets begi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69bc0be1336756b2075ae9883d81bf9d
https://doi.org/10.1016/j.euromechflu.2016.09.002
https://doi.org/10.1016/j.euromechflu.2016.09.002