Recently the drift-reduced Landau fluid six-field turbulence model within the BOUT++ framework [1] has been upgraded. In particular, this new model employs a new normalization, adds a volumetric flux-driven source option, the Landau fluid closure for parallel heat flux and a Laplacian inversion solver which is able to capture $n=0$ axisymmetric mode evolution in realistic tokamak configurations. These improvements substantially extended model's capability to study a wider range of tokamak edge phenomena, and are essential to build a fully self-consistent edge turbulence model capable of both transient (e.g., ELM, disruption) and transport time-scale simulations.

最近，BOUT++框架[1]内的降低漂移的Landau流体六场湍流模型已经升级。特别是，这个新模型采用了新的归一化，增加了一个体积通量驱动的源选项、平行热通量的兰道流体闭合和一个能够捕获的拉普拉斯反演求解器$n=0$现实托卡马克配置中的轴对称模式演化。这些改进极大地扩展了模型研究更广泛的托卡马克边缘现象的能力，并且对于构建能够进行瞬态（例如，ELM、中断）和传输时间尺度模拟的完全自洽的边缘湍流模型至关重要。