流通能力和过滤精度是各种过滤网材的两大液压性能指标。就特种网而言,确定过滤精度较为简单,可从编织结构的分析中获得理论计算数值,一般与实测相近。但是,流通能力的理论计算不能很好地与实际情况吻合,这是由于流动状态复杂,不易确定层流还是紊流,且流通网孔不规则,难以估计 Circulation capacity and filtration accuracy are the two major hydraulic properties of filter materials. For specialty mesh, to determine the filtering accuracy is relatively simple, from the analysis of the braided structure to obtain theoretical calculations, the general and measured similar. However, the theoretical calculation of liquidity does not fit well with the actual situation due to the complex flow conditions, the difficulty of determining the laminar or turbulent flow, and the irregular distribution of the flow cell, which is difficult to estimate