Aerodynamic Effects of Tie-Boss in Extremely Long Turbine Blades

0494391 - ÚT 2019 RIV US eng J - Journal Article
Radnic, Tomáš - Hála, Jindřich - Luxa, Martin - Šimurda, David - Fürst, J. - Hasnedl, D. - Kellner, J.
Aerodynamic Effects of Tie-Boss in Extremely Long Turbine Blades.
Journal of Engineering for Gas Turbines and Power. Roč. 140, č. 11 (2018), č. článku 112604. ISSN 0742-4795. E-ISSN 1528-8919
R&D Projects: GA TA ČR(CZ) TA03020277; GA TA ČR TH02020057
Institutional support: RVO:61388998
Keywords : long turbine blades * CFD * experimental investigation * transonic flow * turbine blade cascade
OECD category: Applied mechanics
Impact factor: 1.653, year: 2018
http://gasturbinespower.asmedigitalcollection.asme.org/article.aspx?articleid=2681087

Focus of this paper is aerodynamic investigation of tie-boss stabilization devices for extremely long rotor blades. This investigation covered measurements on multiple blade cascades and CFD simulation of the flow past these cascades. Conclusions were drawn from results of the measurements and CFD and from the knowledge of prior investigation of the used blade cascade. Main focus of this paper is to describe influence of a tie-boss stabilization device on flow field in interblade channel. Tie-boss with more massive shape proved to cause lesser losses, while tie-boss with a tailored trailing edge showed lesser influence on flow turning.
Permanent Link: http://hdl.handle.net/11104/0289566