多孔介质渗透率的准确确定是多孔介质传热传质研究的一个重要组成部分 ,而传统的 Taylor公式对于不均匀多孔介质的预测效果很不理想。为此 ,利用实际多孔介质剖面图 ,系统研究了颗粒粒径分布分形维数 b、多孔介质孔隙面积分布分形维数 d和孔隙谱维数 ds,在综合考虑了多孔介质孔隙比、颗粒粒径及孔隙连通性的基础上对 Taylor公式进行了改进和发展 ,所提出的新公式在实际预测中相当精确可靠 ,较好地克服了多孔介质复杂多变的几何结构的影响 The accurate determination of porous media permeability is an important part of the study on heat and mass transfer in porous media, while the traditional Taylor formula is not ideal for the prediction of heterogeneous porous media. Therefore, fractal dimension b of particle size distribution, fractal dimension d of pore volume distribution and dimensionality ds of porous media are systematically studied by using actual porous media profiles. Considering the porosity ratio of porous media, particle size And pore connectivity, the Taylor formula is improved and developed. The new formula proposed in the actual prediction is quite accurate and reliable, which can well overcome the complex and changeable geometry of the porous media