Temat: blade optimisation - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Unsteady performance of an HP turbine stage optimised for steady flow conditions
Autorzy:: Świrdyczuk, J.
Powiązania:: https://bibliotekanauki.pl/articles/1964172.pdf
Data publikacji:: 2005
Wydawca:: Politechnika Gdańska
Tematy:: turbine stage
blade optimisation
unsteady effects
Opis:: The article is focused on the examination of the unsteady performance of an HP turbine stage the blades of which were previously optimised for steady flow conditions. For the purpose of this examination, two pairs of initial and optimised stages of comparable output parameters were selected. The results have revealed that the modification of the blade profile in the optimisation process made the rotor blades more vulnerable to unsteady flow fluctuations, which eventually cancelled a considerable part of the stage efficiency gained from the steady flow optimisation.
Źródło:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2005, 9, 2; 187-198
1428-6394
Pojawia się w:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: 3D shape optimisation of turbomachinery blading
Autorzy:: Lampart, P.
Yershov, S.
Powiązania:: https://bibliotekanauki.pl/articles/1986700.pdf
Data publikacji:: 2002
Wydawca:: Politechnika Gdańska
Tematy:: turbomachinery blading
blade shape optimisation
CFD
Opis:: The shape of HP gas and steam turbine stages, as well as of an LP exit stage of a steam turbine, is optimised numerically using a code Optimus and 3D RANS solver FLowER. The numerical method draws on direct constrained optimisation based on the method of deformed polyhedron. Values of the minimised objective function, that is stage losses with the exit energy are found from 3D viscous compressible computations. There are constraints imposed on the mass flow rate, exit swirl angle and reactions. Among the optimised parameters are stator and rotor blade numbers, stagger and twist angles, stator sweep and lean, both straight and compound. The optimisation gives new 3D designs with increased efficiencies.
Źródło:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2002, 6, 1; 113-125
1428-6394
Pojawia się w:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:: Biblioteka Nauki

Artykuł

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