Learning Forum

[宏杰 张]

在ANSYS的稳态热模块中,温度场和总热流的分布基本相同。在高温地区,传热的驱动力自然更大。对于连铸铜板等特殊机械设备,温度分布和总热流分布完全不同,最高温度点和最高热流密度点相距甚远。这使得温度分布引起的等效应力与实际情况不一致.相反,总热流的分布与实际的等效应力相似。原因应该是在一些特殊的机械设备中,高温区域与高热流区域分离,产生不同的应力和温度分布.我希望ANSYS公司能用总热流得到等效应力,放弃温度的电流方法来得到等价应力。

 

[宏杰 张]

In steady-state thermal module of ANSYS, generally, the distribution of temperature field and total-heat flux  is similar. In areas with high temperatures, the driving force for heat transfer is naturally greater. For some special mechanical equipment, such as copper plate of continuous casting mold, the temperature distribution and total-heat flux distribution are completely different, with the highest temperature point and the highest heat flux density point far apart. These make the equivalent stress derived from the temperature distribution inconsistent with the actual situation. On the contrary, the distribution of total-heat flux is similar to the equivalent stress in reality.  

The reason for this should be that in some special mechanical equipment, high temperature areas are separated from areas with high heat flux, resulting in different distributions of stress and temperature. I hope that ANSYS company can use total-heat flux to derive equivalent stress, abandon temperature the current method of using to derive equivalent stress.