Experimental and numerical convective heat transfer performance analysis of a confined impinging round jet with triangular tabs under crossflow influence
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Tarih
2024
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Institute of Physics
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
In this study convective heat transfer performance of a confined impinging round jet with/without nozzle tabs under channel crossflow is investigated experimentally and numerically for a wall mounted heated module. Numerical investigations are carried out for different jet to crossflow velocity ratios (Vr) and compared to experimental data. Four different Vr values (5,6,8, and 10) are tested for single target plate distance to jet nozzle diameter ratio (H/D=8). ANSYS Fluent software is used for numerical simulations while infrared thermography is utilized for experimental investigations. Surface temperature values of the wall mounted module are obtained and presented along with complex flow structures obtained via numerical simulations. Results show that crossflow has decisive effect on temperature distribution on the component. By inserting triangular tabs to the nozzle exit, it is possible to further decrease the surface temperature of the module and minimize the crossflow caused jet deflection. The addition of triangular tabs resulted in a significant increase of up to 10% in the mean Nusselt number on the top surface of the module at Vr=10. © Published under licence by IOP Publishing Ltd.
Açıklama
9th European Thermal Sciences Conference, EUROTHERM 2024 -- 10 June 2024 through 13 June 2024 -- Bled -- 200005
Anahtar Kelimeler
Atmospheric temperature, Heat convection, Nozzles, Surface temperature, Convective heat transfer, Cross flows, Crossflow velocities, Heat transfer performance, Numerical investigations, Performances analysis, Round jets, Surface temperatures, Target plates, Velocity ratio, Numerical models
Kaynak
Journal of Physics: Conference Series
WoS Q Değeri
Scopus Q Değeri
Q3
Cilt
2766
Sayı
1
