基于Hermite插值法的板型燃料不对称冷却计算

Asymmetrical Cooling Calculation of a Plate-type Fuel Reactor Based on Hermite Interpolation Method

摘要: 通过Hermite插值积分理论列出积分平均值与边界条件的关系，进而建立板型燃料芯体及其左右包壳的导热方程，利用Fortran科学计算语言对所建立的数学模型编译求解程序。将求解程序加入到反应堆热工水力实时仿真程序THEATRe中进行不对称冷却问题的计算，并对THEATRe程序的输入卡进行修改。通过计算中国先进研究堆(CARR)的标准燃料组件和跟随体燃料组件的稳态温度分布，与现有参考结果进行对比验证求解程序的正确性。最后模拟分析板型燃料组件流道堵塞事故。

Abstract: This paper through the integration of the Hermite interpolation theory of integral average relationship with the boundary conditions, build the plate type fuel pellets and the heat conduction equation of cladding, Use of the Fortran compiler to solve the mathematical model is established. Add the solver to reactor thermohydraulic asymmetrically cooling problems in real-time simulation program calculation by THEATRe, Modify the program input card. By calculating the steady state of in standard fuel assembly and follower fuel assembly distribution of temperature in CARR, Compared with the results in the literature to prove the validity of the program. Finally simulated plate type fuel assembly flow blockage accident.