In this paper we propose some important improvements related to the single-phase Smoothed Particle Hydrodynamics (SPH) simulations and available for different SPH schemes (such as Riemann SPH or $\delta$-SPH). This model is based on the Continuous Surface Force (CSF), a volumic description of the surface tension and relies on an accurate evaluation of the local normal and curvature at the interface. In particular we show that renormalized SPH operators are necessary to both improve the stability and the accuracy of the model. We also propose a solution aiming at imposing a desired equilibrium contact angle near the contact line for the Boundary Integral Method (BIM). The proposed model is called corrected CSF (C-CSF) and is validated through static and dynamic test cases, with and without solid boundaries, showing that the proposed corrections are necessary to obtained the expected solutions.

在本文中，我们提出了一些与单相平滑粒子流体动力学 (SPH) 模拟相关的重要改进，可用于不同的 SPH 方案（例如 Riemann SPH 或 $\delta$-SPH)。该模型基于连续表面力 (CSF)，它是表面张力的体积描述，并依赖于对界面局部法线和曲率的准确评估。特别是，我们表明重新归一化的 SPH 算子对于提高模型的稳定性和准确性都是必要的。我们还提出了一种解决方案，旨在为边界积分法 (BIM) 在接触线附近施加所需的平衡接触角。所提出的模型称为修正 CSF (C-CSF)，并通过静态和动态测试用例进行验证，有无实体边界，表明所提出的修正对于获得预期解决方案是必要的。