标题： 一种用于三温度辐射传输模型的渐近保持方法 显示英文标题

标题： An asymptotic-preserving method for the three-temperature radiative transfer model

摘要： 我们提出了一种渐近保持（AP）数值方法，用于求解三温度辐射传输模型，该模型在惯性约束聚变中具有重要意义。 设计了一种分割方法，能够为将灰辐射输运方程的AP方案扩展到更复杂的三温度辐射传输模型提供一个通用框架。 所提出的方案捕捉了两个重要的极限模型：当不透明度趋于无穷大时的三温度辐射扩散方程（3TRDE）以及当离子-电子耦合系数趋于无穷大时的两温度极限。 我们严格证明了所提出方案的AP性质和能量守恒特性，其效率通过数值部分的一系列基准测试得到了验证。 显示英文摘要

摘要： We present an asymptotic-preserving (AP) numerical method for solving the three-temperature radiative transfer model, which holds significant importance in inertial confinement fusion. A carefully designedsplitting method is developed that can provide a general framework of extending AP schemes for the gray radiative transport equation to the more complex three-temperature radiative transfer model. The proposed scheme captures two important limiting models: the three-temperature radiation diffusion equation (3TRDE) when opacity approaches infinity and the two-temperature limit when the ion-electron coupling coefficient goes to infinity. We have rigorously demonstrated the AP property and energy conservation characteristics of the proposed scheme and its efficiency has been validated through a series of benchmark tests in the numerical part.