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Issue:ISSN 1006-5539
          CN 51-1183/TE

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    Your Position ：Home->Past Journals Catalog->2012 Vol.4

    Simulation Computation of Penetration Range of Leaking Oils Under the Action of Rainwater
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    Key Words：Oil product； Moisture distribution； Diffusion range； Permeability； Simulation； Leak； Swash zone
    Abstract：Conducted is simulation analysis on effect of different moisture distribution in underground soil on seepage and diffusion range of leaking oils in lower portion of buried oil pipeline before， during and after rain. With the help of CFD software， established is a three-dimensional flow and mass coupling model for oil-water two-phase flow in soil porous media. Simulation results show that moisture distribution has significant effect on underground seepage and diffusion range of leaking oils， the leaking oils will permeate and diffuse around with a “daruma” shape in underground soil before rain， such oils will run around with rainwater in underground soil during rain and diffuse around with great irregularity shape and diffuse around with flask shape in underground soil after rain. After diffusion rate is steady， the leakage range and ground diffusion area after rain is the minimum， the leakage range during rain is the maximum and its growth rate is about more 3 % than before rain and the ground diffusion range before rain is the maximum and its growth rate is about more 2 % than during rain.
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