Title of article :
UNSTEADY HEAT TRANSFER IN AN ANNULAR PIPE, PART II: SWIRLING LAMINAR FLOW
Author/Authors :
KELVIN, H.C.S. University of Nottingham - Faculty of Engineering - Department of Mechanical, Materials and Manufacturing Engineering, Malaysia , YOUSIF, A.A. University of Nottingham - Faculty of Engineering - Department of Mechanical, Materials and Manufacturing Engineering, Malaysia , ANDREW, C. University of Nottingham - Faculty of Engineering - Department of Mechanical, Materials and Manufacturing Engineering, Malaysia
Abstract :
The heat transfer problem in magnetocaloric regenerators during magnetization has been described and investigated for convective heat transfer by means of axial flow in part I of this series. This work will focus on enhancing the unsteady heat transfer using swirling laminar flow generated using axial vanes. The governing parameters for this study are, the D* ratio (Inner diameter/Outer diameter) and the swirl number, S. The study is conducted using dimensional analysis and commercial CFD codes provided by ANSYS CFX. The hydrodynamics and the heat transfer of the model are compared with data from similar cases found in literature and is found to be in the vicinity of good agreement.
Keywords :
annular ducts , unsteady heat transfer , magnetic refrigeration , cooling , swirling laminar flow , dimensional analysis
Journal title :
IIUM Engineering Journal
Journal title :
IIUM Engineering Journal
