Lua脚本在有限元分析中的应用

Application of Lua script in pre-processing of finite element analysis

针对复杂计算域有限元分析前处理过程中手动建模和边界条件设定烦琐和耗时的问题,以蓄热砖温度场分析为例,讨论Lua脚本在有限元前处理过程中的应用;开发温度场有限元分析程序,基于Lua/C API定义若干接口,使用特例的解析解验证温度场计算结果,基于Lua脚本对蓄热砖温度场进行计算。仿真结果表明,Lua脚本可简化有限元前处理过程,特别是几何建模过程,也便于对计算结果进行参数化分析。

As to the issue that the manual modeling and boundary condition setting are tedious and time-consuming in the pre-processing of finite element analysis in complex computing domain,the application of Lua script in the pre-processing of finite element is studied by taking temperature field analysis of thermal storage brick as an example.The finite element analysis program for temperature field of thermal storage brick is developed.The interfaces based on Lua/C API is defined,and the calculation results of temperature field are verified by the analytic solution of a special case.The temperature field of thermal storage brick is calculated based on Lua script.The simulation results show that the pre-processing of finite element,especially the geometric modeling process is simplified using the Lua script,and the parametric analysis on the computing results is easy to be completed.