Continuum kinetic simulations of plasmas, where particle distribution functions are directly discretized in phase-space, permit fully kinetic simulations without the statistical noise of particle-in-cell methods. Recent advances in numerical algorithms have made continuum kinetic simulations computationally competitive. This work presents a continuum kinetic description of high-fidelity wall boundary conditions that utilize the readily available particle distribution function without coupling to additional physical models. The boundary condition is realized through a reflection function that can capture a wide range of cases from simple specular reflection to more involved first principles models. While the framework is usable for various numerical methods and boundary conditions, this work focuses on the discontinuous Galerkin implementation of electron emission using a first-principles quantum-mechanical model. Presented results demonstrate effects of electron emission from a dielectric material on formation of a classical plasma sheath.

等离子体的连续动力学模拟（其中粒子分布函数在相空间中直接离散化）允许进行完整的动力学模拟，而没有细胞内粒子方法的统计噪声。数值算法的最新进展使连续体动力学仿真在计算上具有竞争力。这项工作提供了高保真墙边界条件的连续动力学描述，该条件利用了易于获得的粒子分布函数而无需耦合到其他物理模型。边界条件是通过反射函数实现的，该函数可以捕获从简单的镜面反射到涉及更多的第一原理模型的各种情况。虽然该框架可用于各种数值方法和边界条件，这项工作集中在使用第一性原理量子力学模型的电子发射的不连续Galerkin实现中。提出的结果证明了介电材料发出的电子对经典等离子体鞘层形成的影响。