Practical designs of non-aqueous phase liquids (NAPLs) remediation strategies require reliable modeling of interphase mass transfer to predict the retraction of NAPL during processes such as dissolution. In this work, the dissolution process of NAPL during two-phase flow in heterogeneous porous media is studied using pore-network modeling and micromodel experiments. A new physical-experimental approach is proposed to enhance the prediction of the dissolution process during modeling of interphase mass transfer. In this regard, the normalized average resident solute concentration is evaluated for describing the dissolution process at pore-level. To incorporate the effect of medium heterogeneities, a new experimental factor is considered for enhancing corner diffusion modeling. In addition, capillary desaturation curves (CDCs) are predicted during hydraulic flow modeling to estimate initial residual NAPL saturation. The developed network model can predict residual NAPL saturations and mass transfer rate coefficient for a NAPL-water system at different injection rates and fluid saturations. The evaluated mass transfer rate coefficients using the proposed physical-experimental approach show a significant improvement compared to either mechanistic or empirical methods. The proposed approach in this study can be attractive for possible applications in commercial simulators of contaminant transport in porous media.

非水相液体（NAPL）修复策略的实际设计需要可靠的相间传质模型，以预测溶解等过程中NAPL的收缩。在这项工作中，使用孔网络建模和微模型实验研究了NAPL在非均相多孔介质中两相流动过程中的溶解过程。提出了一种新的物理实验方法，以增强对相间传质建模过程中溶出过程的预测。在这方面，对归一化的平均驻留溶质浓度进行评估，以描述孔水平的溶解过程。为了合并中等异质性的影响，考虑了一个新的实验因素来增强角扩散建模。此外，在液压流建模期间预测毛细管去饱和曲线（CDC），以估计初始残余NAPL饱和度。所开发的网络模型可以预测在不同注入速率和流体饱和度下，NAPL-水系统的残余NAPL饱和度和传质速率系数。与机械方法或经验方法相比，使用建议的物理实验方法评估的传质速率系数显示出显着改善。这项研究中提出的方法对于在多孔介质中污染物传输的商业模拟器中的可能应用可能具有吸引力。所开发的网络模型可以预测在不同注入速率和流体饱和度下，NAPL-水系统的残余NAPL饱和度和传质速率系数。与机械方法或经验方法相比，使用建议的物理实验方法评估的传质速率系数显示出显着改善。这项研究中提出的方法对于在多孔介质中污染物传输的商业模拟器中的可能应用可能具有吸引力。所开发的网络模型可以预测在不同注入速率和流体饱和度下，NAPL-水系统的残留NAPL饱和度和传质速率系数。与机械方法或经验方法相比，使用建议的物理实验方法评估的传质速率系数显示出显着改善。这项研究中提出的方法对于在多孔介质中污染物传输的商业模拟器中的可能应用可能具有吸引力。