The high-speed rarefied gas flow simulation is essential for the aerothermodynamic design of high-altitude vehicles. Recently, the Quasi-Gas Dynamic (QGD) equations have been implemented in OpenFOAM as a CFD solver named QGDFoam. In computational fluid dynamics (CFD), the accuracy of the prediction of the surface quantities depends on the slip and jump boundary conditions applied to the surfaces. In the present work, various first-order and second-order slip and jump boundary conditions have been numerically implemented into the solver QGDFoam in OpenFOAM to obtain a completed solver for simulating the rarefied gas flows. It then captures the surface quantities of the gas flows, such as the surface gas pressure, the slip velocity, and surface gas temperature. This completed solver is validated for the sharp-leading-edge wedge, the compression ramp, and the NACA 0012 micro-airfoil cases. Using the QGD model with the slip and jump conditions extends its application and enhances it to simulate high-speed rarefied gas flows. The simulation results show that the slip and jump conditions have been successfully employed with the QGD equations and give good results for predicting the surface quantities compared with the DSMC data.

高速稀薄气流模拟对于高空飞行器的气动热力学设计至关重要。最近，准气体动力学 (QGD) 方程已在 OpenFOAM 中实现为名为QGDFoam的 CFD 求解器。在计算流体动力学 (CFD) 中，表面量预测的准确性取决于应用于表面的滑移和跳跃边界条件。在目前的工作中，各种一阶和二阶滑移和跳跃边界条件已在数值求解器QGDFoam中实现在 OpenFOAM 中获得用于模拟稀薄气体流动的完整求解器。然后它会捕获气流的表面量，例如表面气体压力、滑移速度和表面气体温度。这个完整的求解器已针对锋利的前缘楔块、压缩坡道和 NACA 0012 微型翼型案例进行了验证。使用带有滑移和跳跃条件的 QGD 模型扩展了它的应用并增强了它以模拟高速稀薄气流。模拟结果表明，滑动和跳跃条件已成功地应用于 QGD 方程，并与 DSMC 数据相比，为预测表面量提供了良好的结果。