不同软件模拟不锈钢GTAW温度场结果的比较

Comparison of GTAW temperature field of stainless steel simulated by different software packages

关键词:  温度场  钨极氩弧焊  MARC软件  PHOENICS软件

Key words:  temperature field  GTAW  MARC  PHOENICS

摘要:

对MARC和PHOENICS两种不同的软件进行对比分析,阐述了两种软件各自的性能及特点。通过应用这两种软件对SUS310不锈钢钨极氩弧焊(GTAW)过程温度场模拟发现,两种软件的前后处理过程存在着明显的差异。其中MARC所提供的边界条件的输入、计算结果的显示及计算数据的提取都更为简洁直观,而PHOENICS则提供了与其它图形处理软件的接口,用户可应用其它图形处理软件对PHOENICS的计算结果进行处理;两种软件所采用的求解方法不同,在MARC中,在每个单元中取若干个积分点进行计算求解,而在PHOENICS中,应用交错网格技术,在网格节点处对所有标量进行求解。对同一焊接过程温度场模拟结果的比较显示,MARC所计算出的最高温度比PHOENICS的计算结果高约600℃。

Abstract:

Two kinds of software packages were introduced and compared about their functions and characteristics.The simulated results of the temperature field of stainless steel SUS310 in GTAW process showed that pre-data-treatment and post-data-treatment of MARC are more powerful than those of PHOENICS,so it is easy for users to input the boundary conditions and get the results in MARC.But in PHOENICS,the interfaces to the other software packages are provided for the post-data-treatment,and the results can be operated easily in this way.There is some difference between the results simulated by two software packages as the solvers are not the same.In MARC,there are several integral points used to solve the results in every grid,while in PHOENICS,the staggered grid technique is used.Simulated results of the two software packages show that the highest temperature calculated with MARC is(600℃) higher than that with PHOENICS.