Heat Transfer in Double Annular due to Natural Convection

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F21%3A00351850" target="_blank" >RIV/68407700:21220/21:00351850 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1088/1757-899X/1190/1/012002" target="_blank" >https://doi.org/10.1088/1757-899X/1190/1/012002</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1757-899X/1190/1/012002" target="_blank" >10.1088/1757-899X/1190/1/012002</a>

Result language
angličtina
Original language name
Heat Transfer in Double Annular due to Natural Convection
Original language description
Presented paper is focused on 2D numerical simulation of turboprop engine cooling in the section of a gas turbine. The paper describes the issue of heat transfer by natural cooling of a turboprop engine in the turbine region in order to determine the time-dependent temperature field in the engine. The analysis is represented on a simplified double annular geometry, where the inner tube represents the engine rotor, the middle tube represents the flow path and the outer ring replaces the engine case. Simultaneous heat transfer by natural convection (Boussinesq model) and radiation (model S2S) is solved on this geometry. Numerical data were compared with data that was gained from measuring on an experimental stand. The surface temperatures of the tubes were measured on the experiment stand during the cooling of the engine model. The temperatures on the walls of the flow path were based on real temperatures of the running engine as initial conditions together with the temperature of the outer tube. The results will be further applied to the study of temperature-dependent deformation of aircraft engine parts, which have a significant effect on the safety and trouble-free operation of the aircraft engine.
Czech name
—
Czech description
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Project
<a href="/en/project/EF16_019%2F0000826" target="_blank" >EF16_019/0000826: Center of Advanced Aerospace Technology</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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