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순수유체와 다공성물질의 경계면에서 압력구배의 수치적 처리에 관하여
김인선(I. S. Kim),남진현(J. H. Nam),김찬중(C.-J. Kim) 한국전산유체공학회 1999 한국전산유체공학회지 Vol.4 No.3
The objective of this study is to present a numerical treatment of the pressure gradient when control volumes are sharing the interface between a homogeneous fluid and a porous medium. Two possible approaches, e.g. linear interpolation and extrapolation, are considered, and they are applied to the case of a steady and two-dimensional curved channel flow which is partially filled with a porous medium. It was found that the linear extrapolation produces a continuous velocity field at the interface and thus is recommended. On the contrary, the linear interpolation entails a discontinuous velocity field at the interface, thereby warning its use in connection with the Brinkman-Forchheimer-extended Darcy flow model.
순수유체와 다공성물질의 경계면에서 압력구배의 수치적 처리에 관하여
김인선(I. S. Kim),남진현(J. H. Nam),김찬중(C.-J. Kim) 한국전산유체공학회 1999 한국전산유체공학회지 Vol.4 No.3
The objective of this study is to present a numerical treatment of the pressure gradient when control volumes are sharing the interface between a homogeneous fluid and a porous medium. Two possible approaches, e.g. linear interpolation and extrapolation, are considered, and they are applied to the case of a steady and two-dimensional curved channel flow which is partially filled with a porous medium. It was found that the linear extrapolation produces a continuous velocity field at the interface and thus is recommended. On the contrary, the linear interpolation entails a discontinuous velocity field at the interface, thereby warning its use in connection with the Brinkman-Forchheimer-extended Darcy flow model.