Thermal wave propagation in a functionally graded annular fin with fixed base

Yildirim A., Eker M., Yarimpabuç D., Çelebi K.

WAVES IN RANDOM AND COMPLEX MEDIA, no.0, 2021 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Publication Date: 2021
  • Doi Number: 10.1080/17455030.2021.1925175
  • Journal Name: WAVES IN RANDOM AND COMPLEX MEDIA
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Communication Abstracts, Compendex, INSPEC, Metadex, zbMATH, Civil Engineering Abstracts
  • Keywords: Thermal wave propagation, annular fin, Mori&#8211, Tanaka homogenization, pseudospectral Chebyshev method, functionally graded materials, fin efficiency
  • Çukurova University Affiliated: Yes

Abstract

Thermal wave propagation and efficiency analysis of thin axially symmetric

functionally graded annular fins with a fixed base boundary

condition are examined. All material properties are graded along the

radial direction using the Mori–Tanaka homogenization scheme to

design a realistic and physically meaningful graded material model

and create a smooth distribution of elastic and thermal material

properties. The novelty of this research is handling a more realistic

annular fin, which has sufficient strength in practice and significantly

reduces weight, using two different metal materials with the

elasticity-based Mori–Tanaka model. These conditions result in twopoint

linear boundary value problems that are numerically solved by

the pseudospectral Chebyshev method. The temperature distributions,

thermal stresses and the efficiency in the functionally graded

annular fin are compared with fins made of steel only and aluminium

only.