| 講演要旨(和文) | | (1) 多孔性媒質内を流れる流体について,Darcyの法則を,全媒質平均量を用いて再構成した.(2) Darcyの法則は,運動方程式の立場からみると,流体応力勾配による駆動力と流れに対する粘性抵抗力との釣合の方程式であることを示した.(3) これに慣性項を加えることによって,流体部分の運動方程式を導いた.この再構成表現は媒質平均量によるものである. |
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| | 講演要旨(英文) | | Recasting form of the Darcy law in the Gassmann-Biot theory of the porous media is presented( Equations (4), (6) and (9)). The Darcy law is an equilibrium equation of the driving force due to the fluid stress and the flow resistance force. The equation of motion of the fluid part is, then, derived by adding the inertial force as well as the external body force ( Equation (19)). The recast forms are simple and clear. This is an advantage of the use of the media-averaged quantities. The relation of the recast form of the Darcy law and the Biot form is presented. |
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