Open AccessThe CFD study of three-dimensional model of porous medium regenerator with oscillating flow
Author(s) -
C.Y. Chi,
Junmin Mou,
Mingqiang Lin,
GT Hong,
Chen Hl
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/755/1/012063
Subject(s) - regenerative heat exchanger , nusselt number , materials science , thermodynamics , reynolds number , heat transfer , flow (mathematics) , mechanics , heat exchanger , physics , turbulence
The regenerator is the core heat exchange component of the Stirling engine. The performance of it is determined by the configurations and physical properties of the filling material. In this paper, a three-dimensional model of the regenerator filled with powder sintered material is established and simulated with the oscillating flow using ANSYS. After specific post-processing, the relationship between Reynolds number and specific friction coefficient as well as Nusselt number is numerically solved which provides a method to acquire characteristics of flow resistance and heat transfer for the specific configuration. Finally, the parameter of Nu / C f 1 / 3 is chosen as an indicator to evaluate the performance of the four fillers, and the potential of being a future regenerator filler is discussed.