• 제목/요약/키워드: Darcynumber

검색결과 1건 처리시간 0.017초

수직$\cdot$수평 관통류를 갖는 수평 다공층에서 자연대류 연구 (The Natural Convection in Horizontal Porous Layer with Vertical or Horizontal Throughflow)

  • 서석진;박찬국
    • 한국전산유체공학회지
    • /
    • 제3권1호
    • /
    • pp.73-81
    • /
    • 1998
  • The effect of vertical or horizontal throughflow on natural convection in horizontal porous layer was investigated. The computations were performed by employing Darcy-Brinkman-Forchheimer equation to consider the effect of inertia and viscous effect. The patterns of streamlines and isotherms are observed by changing the strength of throughflow. The vertical throughflow stabilizes the natural convection in porous layer. It also disturbs the developing vertical and horizontal velocity component of natural convection cell and increases the critical modified Rayleigh number. The horizontal throughflow influences the stabilization of natural convection in porous layer much more than the vertical throughflow. And it changes a stable convection into a oscillatory convection.

  • PDF