摘要
本文建立了YBCO失超的数学物理模型,包括两个联立的偏微分方程和相应的定解条件。该方程组所描述的系统有两个显著特点:强非线性和强耦合。以此为基础,在Comsol Multiphysics中建立了二维数值计算模型,该模型可模拟YBCO带材在不同工况下的失超传播过程,得出失超后温度、电势分布和电导率的演化过程。为验证模型的合理性和准确度,设置两种带材的工作状况,进而计算其最小失超能和失超传播速度,并与相关的一维模型的模拟结果和实验结果作对比,以评估模型与实验的吻合程度。
The quench behavior as well as the physical dynamics of the YBCO tapes were studied and a mathematical modal was established to describe the quench behavior.The model consisted of two simultaneous partial differential equations and corresponding initial conditions and boundary conditions.The system described by these two equations was strongly coupled and seriously nonlinear. Based on this mathematical model,a 2D numerical model of the YBCO tape was built and solved by Comsol Multiphysics.The temper- ature,electric potential as well as conductivity could be calculated under different operating condition.The normal zone propagation ve- locity were calculated under the same condition as literature experiments to verify the accuracy of the model,and it turned out to be ac- curate.
作者
郑遥路
阴达
蒋东辉
陈志友
陈文革
匡光力
谭运飞
Zheng Yaolul;Yin Da;Jiang Donghui;Chen Zhiyou;Chen Wenge;Kuang Guangli;Tan Yunfei(High Magnetic Field Laboratory,Chinese Academy of Sciences,Hefei 230031,China;University of Science and Technology of China,Hefei 230026,China;Huazhong University of Science and Teehnology,Wuhan 430000,China)
出处
《低温与超导》
CAS
北大核心
2018年第12期22-26,共5页
Cryogenics and Superconductivity
基金
国家自然科学基金项目(U1632276)
安徽省杰出青年科学基金项目(1808085J01)
