Kang C S, Lee H H, Oh S, Lee S G, Wi H M, Kim Y S, Kim H S
National Fusion Research Institute, Daejeon 305-806, South Korea.
Rev Sci Instrum. 2016 Aug;87(8):083508. doi: 10.1063/1.4961030.
An infrared (IR) thermography is the preferred diagnostic that can quantify heat flux by measuring the surface temperature distributions of the divertor plates. The IR thermography is successfully instrumented on Korea Superconducting Tokamak Advanced Research (KSTAR). In this study, finite volume method is considered to solve the heat conduction equations. 1D-, 2D-, and 3D models are developed and compared with various calculation algorithms, such as Duhamel's theorem and THEODOR. These comparisons show good agreement. In order to acquire more efficient and reliable calculation results, we consider two numerical analysis schemes, influence of temperature on thermal properties and image stabilization. Recently, this reconstruction code is successfully applied to the KSTAR IR thermography.
红外热成像技术是一种首选的诊断方法，它可以通过测量偏滤器板的表面温度分布来量化热通量。红外热成像技术已成功应用于韩国超导托卡马克先进研究装置（KSTAR）。在本研究中，采用有限体积法求解热传导方程。开发了1D、2D和3D模型，并与各种计算算法（如杜哈梅尔定理和THEODOR）进行了比较。这些比较显示出良好的一致性。为了获得更高效、可靠的计算结果，我们考虑了两种数值分析方案，即温度对热性能的影响和图像稳定。最近，该重建代码已成功应用于KSTAR红外热成像技术。
