Fluid models used to study the edge plasma region need to be benchmarked against similar conditions given that models can strongly differ in complexity and therefore the results they produce. Via this validation study undertaken through the framework of EUROfusion Enabling Research, four state-of-the art models—GBS, Hermes/BOUT++, hot-edge-sol-electrostatic and TOKAM3X—are compared to experimental plasma turbulence measurements on the ISTTOK tokamak. Statistical comparisons of simulation and experiment data show that fluid models used here can replicate most of the experiment in terms of and fluctuations despite their differences. Furthermore, it is shown that without including more complex information (like core turbulence information and domain geometry details and magnetic topological aspects) in fluid models, the results recovered vary from their experimental counterparts. Via the simulations using these codes, it is demonstrated that fluid models continue to be a good cost-effective tool in recovering many global aspects of edge plasma behaviour.

用于研究边缘等离子体区域的流体模型需要针对类似条件进行基准测试，因为模型在复杂性方面可能存在很大差异，因此它们产生的结果也不同。通过这项在 EUROfusion Enabling Research 框架下进行的验证研究，将四种最先进的模型——GBS、Hermes/BOUT++、hot-edge-sol-electrostatic 和 TOKAM3X——与 ISTTOK 托卡马克上的实验等离子体湍流测量进行了比较。仿真和实验数据的统计对比显示，这里使用的流体模型可以复制大多数实验中的条款和尽管存在差异，但波动。此外，结果表明，在流体模型中不包括更复杂的信息（如核心湍流信息和域几何细节和磁拓扑方面）的情况下，恢复的结果与其实验对应物不同。通过使用这些代码的模拟，证明流体模型在恢复边缘等离子体行为的许多全局方面仍然是一种良好的成本效益工具。