Nonlinear thermal analysis of serrated fins by using homotopy perturbation method
Küçük Resim Yok
Tarih
2023
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Pamukkale Univ
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Thermal analysis of serrated fins which are consist of annular and plain sections are investigated. Serrated fin's thermal conductivity is assumed to change linearly with temperature. Nonlinear differential equations are obtained by applying the energy balance equation for both sections of the serrated fin and these equations are solved by applying homotopy perturbation method. Insulated fin tip, constant fin base temperature and common boundary conditions between the interface of two sections are considered. Serrated fin radii ratio (epsilon), segment height ratio (delta), thermo-geometric fin parameter (psi) and thermal conductivity parameter (beta) effecting the thermal performance and temperature distribution are investigated. The results showed that the homotopy perturbation is a reliable method for the solutions of such nonlinear differential equations. A very good agreement with the homotopy perturbation method and the numerical finite difference method are obtained. It is seen that, serrated fin efficiency lays between annular and rectangular fins and increases with the increase of segment height ratio and thermal conductivity parameter. Such as, fin efficiency values under the condition of epsilon = 2, psi(1) = 1.0 and beta = 0 for delta = 0, 0.5, and 1 are 0.692, 0.718, and 0.762, respectively.
Açıklama
Anahtar Kelimeler
Homotopy perturbation method, Serrated fin, Variable thermal conductivity
Kaynak
Pamukkale University Journal of Engineering Sciences-Pamukkale Universitesi Muhendislik Bilimleri Dergisi
WoS Q Değeri
Q4
Scopus Q Değeri
Cilt
29
Sayı
6
