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探讨了前期建立的多孔结构毛细抽吸模型的应用,提出了一种测量多孔结构渗透率的方法,并对其进行了实验验证,结果表明毛细抽吸性能实验可用来测量多孔结构的渗透率,对不同高度、不同截面积和不同孔隙率的多孔结构进行了毛细抽吸性能实验研究,其结果很好地说明了通过毛细抽吸性能实验测量多孔结构渗透率的方法是与实际情况相吻合的,该方法与传统的测量渗透率的方法相比具有测试方便、密封要求低、对试样的强度和形状要求低、流体驱动力为毛细抽吸力等优点,因而更适合用来衡量热管使用的多孔结构。
The porous structure capillary suction model established earlier was discussed. A method to measure the permeability of porous structure was proposed and verified by experiments. The results show that the capillary suction experiment can be used to measure the permeability of porous structure, The capillary suction performance of porous structures with different height, different cross-sectional area and different porosity has been studied experimentally. The results show that the method to measure the permeability of porous structure through capillary suction experiment is in good agreement with the actual situation Compared with the traditional method of measuring permeability, the method has the advantages of convenient testing, low sealing requirement, low requirement on strength and shape of the sample and capillary driving force of the fluid driving force, which is more suitable for measuring the heat pipe Porous structure.