对不同纤维体积分数和不同纤维分布状态的纤维模型进行数值模拟,分析纤维微结构的改变对流体流动行为的影响.结果表明,在纤维体积分数低时,纤维间最小距离对平均渗透率影响小;在纤维体积分数高时,平均渗透率随着最小距离的减小而减小.研究渗透率标准偏差与最小距离、体积分数三者关系,在纤维体积分数低时,渗透率的标准偏差主要由最小距离决定;在纤维体积分数高时,渗透率的标准偏差由纤维体积分数及最小距离共同决定.
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