使用量纲分析（DA）方法对膜表面的传质阻力进行了建模，其中Sh数是根据NF-70膜进料通道特性和流体性质确定的，因此可以预测溶质传质系数（MTC）。DA用于模拟溶质MTC，其中非电解质MTC（二溴氯丙烷（DBCP））根据经验威尔克变化扩散系数预测，单个离子MTC（钠、铁、钙）根据能斯特扩散系数预测。虽然威尔克变化经验近似法在预测非电解质DBCP MTC时被证明是有用的，但使用能斯特方程并不能可靠地预测NF中钠、铁和钙的电荷离子MTC- 70膜。

Mass transfer resistance at the membrane surface has been modeling using a dimensional analysis (DA) approach, where the Sh number was determined from the NF-70 membrane feed channel characteristics and fluid properties so that solute mass transfer coefficients (MTCs) could be predicted. DA was used to model solute MTCs where nonelectrolyte MTCs (dibromochloropropane (DBCP)) were predicted based on a empirical Wilke-Change diffusion coefficient and individual ion MTCs (sodium, iron, calcium) were predicted from a Nernst diffusion coefficient. Although the Wilke-Change empirical approximation was shown to be useful in predicting the nonelectrolyte DBCP MTC, use of the Nernst equation did not reliably predict the MTCs of the charge ions sodium, iron and calcium in a NF-70 membrane.