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CFD Simulation of Transonic Flow Through the Tip-Section Turbine Blade Cascade Intended for the Long Turbine Blade
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SYSNO ASEP 0564777 Document Type C - Proceedings Paper (int. conf.) R&D Document Type The record was not marked in the RIV Title CFD Simulation of Transonic Flow Through the Tip-Section Turbine Blade Cascade Intended for the Long Turbine Blade Author(s) Kosiak, Pavlo (UT-L)
Hála, Jindřich (UT-L) RID, ORCID
Luxa, Martin (UT-L) RID, ORCID
Příhoda, Jaromír (UT-L) RID, ORCIDArticle number 01004 Source Title MATEC Web of Conferences, 369. - Grenoble : EDP Sciences, 2022 Number of pages 9 s. Publication form Online - E Action MATEC Web of Conferences : MDFMT & XXIII. AEaNMiFMaE-2022 /40./ Event date 12.09.2022 - 14.09.2022 VEvent location Piešťany Country SK - Slovakia Event type WRD Language eng - English Country FR - France Keywords CFD simulation ; tip-section blade cascade ; flat profile ; shock-wave ; boundary-layer interaction Subject RIV BK - Fluid Dynamics OECD category Applied mechanics R&D Projects GA20-11537S GA ČR - Czech Science Foundation (CSF) Institutional support UT-L - RVO:61388998 DOI 10.1051/matecconf/202236901004 Annotation The paper deals with numerical simulations of transonic flow through the turbine blade cascade consisting of flat profiles. The cascade is one of variants of the tip section of ultra-long blades, which were designed for the last stage of the steam turbine. CFD simulations were realized by means of the ANSYS CFX commercial software using the γ-Reθ bypass transition model completed by the two-equation SST turbulence model. Some simulations were made only by the SST turbulence model for comparison. Numerical results were compared with experimental data. Calculations performed for two nominal regimes and two computational domains. In addition to the standard computational domain, the calculation was performed for a domain with an extended output part for the suppression of reflected shock waves. The interaction of the inner branch of the exit shock wave with the boundary layer on the blade suction side leads in the both flow regimes to the flow separation followed by the transition to turbulence. The flow structure in the blade cascade obtained for the extended domain corresponds well to experimental results. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2024 Electronic address https://www.matec-conferences.org/articles/matecconf/pdf/2022/16/matecconf_aenmmte2022_01004.pdf
Number of the records: 1