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Numerical simulation of turbine cascade flow with blade-fluid heat exchange
- 1.0427096 - ÚT 2014 RIV US eng J - Journal Article
Louda, Petr - Sváček, P. - Fořt, J. - Fürst, J. - Halama, J. - Kozel, Karel
Numerical simulation of turbine cascade flow with blade-fluid heat exchange.
Applied Mathematics and Computation. Roč. 219, č. 13 (2013), s. 7206-7214. ISSN 0096-3003. E-ISSN 1873-5649
R&D Projects: GA ČR(CZ) GAP101/10/1329
Institutional support: RVO:61388998
Keywords : turbomachinery * heat exchange * turbulent flow * coupled problem
Subject RIV: BA - General Mathematics
Impact factor: 1.600, year: 2013
The work deals with the numerical simulation of turbulent flow through turbine cascades including heat exchange between fluid and blades. The numerical algorithm couples an implicit AUSM finite volume solver for fluid flow and a finite element solver for heat conduction inside the blade. Several k-omega turbulence models are applied. The eddy diffusivity assumption is used for turbulent heat flux computation. The influence of inlet boundary conditions for turbulence models is discussed. A case of failure of eddy diffusivity turbulent heat flux with common value of turbulent Prandtl number Pr-t = 0.91 is presented, where remedy is achieved by lowering the magnitude of Prt. (C) 2011 Elsevier Inc. All rights reserved.
Permanent Link: http://hdl.handle.net/11104/0232703
Number of the records: 1