【摘要】：針對(duì)生產(chǎn)實(shí)際中存在大量二相流在多孔介質(zhì)中的入滲滯留問(wèn)題,采用細(xì)粒石英砂配置成懸濁液進(jìn)行砂柱滲透正交模擬實(shí)驗(yàn),研究不同因素對(duì)二相流入滲的影響。選定了多孔介質(zhì)粒徑、二相流顆粒粒徑、二相流質(zhì)量分?jǐn)?shù)、水頭高度等4項(xiàng)因素,分別取3項(xiàng)水平因子,制定L9(34)正交試驗(yàn)表,然后進(jìn)行砂柱實(shí)驗(yàn)。采用滲透系數(shù)變化率ks指標(biāo)來(lái)表征各因素對(duì)多孔介質(zhì)滲透性能的影響程度。結(jié)果表明,上述各因素對(duì)砂柱滲透系數(shù)變化率的影響程度由低到高依次為二相流質(zhì)量分?jǐn)?shù)、二相流顆粒粒徑、水頭高度、多孔介質(zhì)粒徑,多孔介質(zhì)粒徑是本實(shí)驗(yàn)的主要影響因素。
[Abstract]:In view of the problem of infiltration and retention of a large number of two-phase flow in porous media in production practice, the orthogonal simulation experiment of sand column permeation was carried out by using fine quartz sand as suspending liquid to study the influence of different factors on the infiltration of two-phase flow. Four factors, such as particle size of porous media, particle size of two-phase flow, mass fraction of two-phase flow and water head height, were selected, and three horizontal factors were taken respectively, and L9 (34) orthogonal test table was worked out, and then sand column experiments were carried out. The influence of various factors on the permeability of porous media was characterized by the coefficient of permeability (KS) index. The results show that the influence of the above factors on the change rate of permeability coefficient of sand column is followed by the mass fraction of two-phase flow, the particle size of two-phase flow, the height of water head and the diameter of porous media. The particle size of porous media is the main influencing factor in this experiment.
【作者單位】： 北方工業(yè)大學(xué)土木工程學(xué)院;
【基金】：國(guó)家自然科學(xué)基金(41202214) 北京市科技新星計(jì)劃項(xiàng)目(Z121106002512008)
【分類號(hào)】：TV223.4;TV649

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