|
CSME 2022/12
Volume 43 No.6
:
499-507
|
|
Numerical Flow Investigation of Hybrid Regenerator
Kuttum Pavan Kumar a, Pratik Prakash Gupta a, Shung-Wen Kanga and Sundararaj Senthilkumar b
aDepartment of Mechanical and Electro-Mechanical Engineering, Tamkang University, Tamsui, New Taipei City, Taiwan 251301
bDepartment of Aerospace Engineering, SRM Institute of Science and Technology, Chennai, India
|
Abstract:
The regenerator is the core heat exchange component of the Stirling refrigerator, and its performance is determined by the configurations and physical properties of the wire mesh. This paper presents the investigation of frictional pressure drop correlation equations obtained from a steady flow numerical analysis for both uniform mesh and hybrid wire mesh regenerator with different wire mesh configurations, stacked aligned and misaligned configuration. Hybrid mesh regenerator comprises different wire-meshes as its porosity is arranged in fine to coarse or coarse to fine aspects. The numerical study uses a finite volume method (FVM) based CFD approach for different configurations of wire mesh regenerator. The working fluid is considered isothermal, and the viscosity is assumed to be a constant. Furthermore, the relationship between Reynolds number and the friction coefficient is numerically solved, providing insight into various configuration flow characteristics. The numerical study is validated by comparing the obtained correlations to previously published research, Reynolds numbers up to 550. The frictional drop correlations derived from the numerical analysis can be used to compute pressure drops in the regenerator's flow direction.
|
|
Keywords: Stirling cryocooler, Regenerator, Steady flow
|
Download PDF
|
|
*Corresponding author; e-mail:
|
©
2022
CSME , ISSN 0257-9731
|