Numerical solution of a flow inside a labyrinth seal

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00010669%3A_____%2F11%3A%230001201" target="_blank" >RIV/00010669:_____/11:#0001201 - isvavai.cz</a>
Result on the web
<a href="http://www.vzlu.cz/cz/transfer-vysledku/clanky-ve-sbornicich-d/" target="_blank" >http://www.vzlu.cz/cz/transfer-vysledku/clanky-ve-sbornicich-d/</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Numerical solution of a flow inside a labyrinth seal
Original language description
The aim of this study is a behaviour of a flow inside a labyrinth seal on a rotating shaft. The structure of the flow field inside the seal is studied through the use of numerical methods. In order to reduce the computational time, the problem is solvedas an axisymmetric problem in a two-dimensional meridian plane. For this case we use a transformation of the Navier-Stokes equations and of the standard k-omega turbulence model into a cylindrical coordinate system. A finite volume method is used for thesolution of the resulting problem. A one-side modification of the Riemann problem for boundary conditions is used at the inlet and at the outlet of the axisymmetric channel. The important characteristics such as a mass flow rate and a power loss, depending on a pressure ratio (1.1 - 4) and an angular velocity (1000 - 15000 rpm) are evaluated.
Czech name
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Czech description
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Project
<a href="/en/project/FR-TI3%2F432" target="_blank" >FR-TI3/432: *Complex development of a turbine reaction stage with high efficiency</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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