A new CFD method enhanced by machine learning for violent free surfaces

在用于多相流界面捕获处理的THINC VOF格式中，一个新的公式将取代目前使用的切线双曲线函数，并已取得了初步结果。与正切双曲函数不同，该函数可以进行两次积分，从而节省了与数值积分相关的计算成本。在测试场景的子集中，提出的方案以大约一半的计算成本提供了与最先进的THINC技术相当的结果。然而，目前的结果仍然局限于笛卡尔(六面体网格)网格，将新方法推广到不同类型的非结构网格存在一定的困难。

Preliminary results for a new formula that will replace the currently employed Tangent Hyperbolic function in the THINC VOF scheme utilized for interface capture treatment in multiphase flow have been achieved. The proposed function, unlike the Tangent Hyperbolic function, can be integrated twice, saving computing costs associated with numerical integration. In a subset of test scenarios, the proposed scheme gives results that are comparable to state-of-the-art THINC techniques at around half the computational cost. However, the current results are still limited to Cartesian (Hexahedral mesh) grids, and there are some difficulties in extending the new approach to different types of unstructured grids.