INVESTIGATION OF INERTIAL EFFECT IN SIMPLIFIED POROUS MEDIA FLOW
Flows in porous media appear in many fields of science and engineering applications. In this paper, the inertial effect on fluid transport in a porous medium is investigated both experimentally and numerically by employing a simplified ordered porous medium model. Transition from linear to nonlinear behavior is evaluated empirically using a friction factor-Reynolds number correlation. The numerical model is first validated by comparing computed macroscopic flow characteristics with experimental observation, and then the validated model is used to further explore localized microscopic flow patterns in detail. The results show that the high-velocity flow localized in a narrow tube dominates the bulk characteristics of the fluid transport. The dissipative pressure losses in the recirculation zones around flow separation play a significant role in the nonlinear behavior of porous media flow.
Porous media Darcy law Forchheimer equation Inertial effect Nonlinear flow
Zhiyong Hao Niansheng Cheng Soon Keat Tan
Maritime Research Center, Nanyang Technological University (NTU), Singapore 639798 School of Civil and Environmental Engineering, NTU, Singapore 639798
国际会议
第16届亚太地区国际水利学大会暨第3届水工水力学国际研讨会(16th IAHR-APD Congress and 3rd Symoposium of IAHR-ISHS)
南京
英文
160-165
2008-10-20（万方平台首次上网日期，不代表论文的发表时间）