Publisher : The Korean Society of Mechanical Engineers
DOI : 10.22634/KSME-B.19126.96.36.1998
Title & Authors
Numerical analysis in oscillating flow considering orientation of porous media regenerator Yang, Mun-Heum; Park, Sang-Jin; No, Seung-Tak;
Numerical analyses were performed to investigate the characteristics of regenerator in oscillating flow by using moving boundary method and Darcy model. In this work, periodic adiabatic boundary condition was suggested as the boundary condition of adiabatic part so that the effects of the thermal inertia of the wall could be considered. In carrying out numerical analyses, two models were applied and compared. One called isotropic model has the same thermal conductivity in radial and axial directions within a porous media. The other called aeolotropic model has different conductivity in each directions. Isotropic model could not show the advantage of energy reduction which needs to maintain constant wall temperature difference between heater and cooler. But aeolotropic model could simulate the reduction of energy consumption.