Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Numerical analysis in oscillating flow considering orientation of porous media regenerator

다공성 재생기의 방향성을 고려한 왕복유동 수치해석

  • 양문흠 (삼성전자 생활시스템연구소) ;
  • 박상진 (한국기계연구원 환경설비연구부) ;
  • 노승탁 (서울대학교 기계공학과)
  • Published : 1997.12.01
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Abstract

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.

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References

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