Scale bridging simulation of dynamic wetting based on the phase field method (B07)

B07N的目标是对复杂衬底上多尺度动态润湿过程中接触线上的局部传输过程有基本的了解。将使用在OpenFOAM中开发的基于扩散界面相场方法的专有CFD求解器。该方法能够描述多孔/结构基质中的渗吸和渗透过程，特别是在毛细作用主导的润湿过程中。重点在于准确检测局部非均质性(孔径分布、粗糙度、功能化)以及尺度桥接方法，该方法将现代高性能计算技术、DG方法和原子-连续混合方法相结合来实现。

The aim of B07N is the fundamental understanding of local transport processes at the contact line in multiscale, dynamic wetting processes on complex substrates. A proprietary CFD-solver based on the diffuse-interface phase field method and developed in OpenFOAM will be used. The method enables the description of imbibition and penetration processes in porous/structured substrates, especially during capillarity dominated wetting. Focus lies on the exact detection of local heterogeneities (pore size distribution, rough-ness, functionalization) as well as on a scale bridging methodology, to be realized by combining modern HPC techniques, DG methods and the hybrid atomistic-continuum method.