Title

Simulations of Flow and Heat Transfer Inside Regenerators Made of Stacked Welded Screens Using Periodic Cell Structures

Document Type

Article

Publication Date

2004

Publication Title

Proceedings of the 2nd International Energy Conversion Engineering Conference

Abstract

A micro-macro combined approach is presented for modeling the flow and thermal fields through a porous medium when the cell structure is well defined. This approach entailed modeling regenerators made of stacked welded screens by using a fundamental periodic two-dimensional or three-dimensional cellular unit and solving for the flow and thermal field inside the units. Periodic boundary conditions were set on the boundaries parallel to the stream wise direction, while a pseudo-periodic boundary condition with a prescribed volumetric flow rate was assigned to the inlet and outlet boundaries of the unit cell. The computed pressure drop data of the flow through the cellular unit and the heat transfer rate between solid and fluid were compared against experimental data. Comparisons were made between the micro model CFD results and experimental data for the matrix. © 2004 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.

Comments

Paper AIAA 2004-5599 presented at the 2nd International Energy Conversion Engineering Conference, Providence, RI, August 16 - 19, 2004.

DOI

10.2514/6.2004-5599