Role of fluid-structure interaction in mixed convection from a circular cylinder in a square enclosure with double flexible oscillating fins
Document Type
Article
Publication Date
1-1-2019
Abstract
The problem of unsteady mixed convection in a square enclosure containing a heated circular cylinder is studied in this paper. Two solid elastic thin fins are attached on the top cold wall. The governing equations for fluid flow and energy in the fluid and structures domains are written in Arbitrary Lagrangian-Eulerian (ALE) formulation. Finite element method was used to obtain the approximate solutions of the governing equation. The governing parameters considered are the oscillating fin direction, fin amplitude and length with various elasticity values and cylinder sizes. The results show that the instantaneous heat transfer characteristics of the contrary oscillation differs greatly from the identical oscillation. The influence of the elasticity value on the heat transfer rate is significant at a sufficiently small amplitude oscillation. © 2019 Elsevier Ltd
Keywords
Mixed convection, Arbitrary lagrangian-Eulerian, Flexible fin, FSI
Divisions
MathematicalSciences
Funders
University of Malaya Research Grant No. RG397-17AFR
Publication Title
International Journal of Mechanical Sciences
Volume
161-62
Publisher
Elsevier