Numerical simulation of hub-seal leakage flow interaction with the rotor blades

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00010669%3A_____%2F19%3AN0000037" target="_blank" >RIV/00010669:_____/19:N0000037 - isvavai.cz</a>
Result on the web
<a href="https://aip.scitation.org/doi/abs/10.1063/1.5138633" target="_blank" >https://aip.scitation.org/doi/abs/10.1063/1.5138633</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/1.5138633" target="_blank" >10.1063/1.5138633</a>

Result language
angličtina
Original language name
Numerical simulation of hub-seal leakage flow interaction with the rotor blades
Original language description
Present paper deals with numerical simulation of flow in simplified model of the axial turbine stage equipped with the hub-seal. Main subject of simulations is study of various geometrical modifications of the outlet-slot from the hub-seal. The purpose of these modifications is to suppress a negative effect of complex secondary structures on the stage efficiency. Secondary flow structures are formed as a result of interaction of main stream above the outlet-slot with the leakage-stream from the hub-seal. It was found that suitable shape of the outlet-slot can bring up to six tenth of percent in efficiency.
Czech name
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Czech description
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Project
<a href="/en/project/TH02020086" target="_blank" >TH02020086: Influence of Seal Leakage Flows Interactions on Steam Turbine Efficiency</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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