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发表于 2003-7-27 23:44:13
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一个关于模拟罐内部的温度场确定的问题![求助]
要自己编程不容易.
应首先考虑商业程序.
自己编程的话,我人为用一维模型不如用分析法粗略的算一下.
或用圆柱摸型的那个莫什么图也要好一点.
用2维模型的话,
I donot what is the material of the 罐. If the 罐 is made of metal, that means the heat resistance is quite small. so the calculate of the domain of 罐 can be neglected. However if the 罐's heat conductiviey is quite small, that means the 罐 is important for temperature of the oil. You must consider the domain in 罐.
If the 罐 is metal:
Whatever,
Now you have to calculate at least 2 domains. One the the oil, the other is the gas above the oil. For oil: The temperature boundary condition is second kind for bottom, third kind for oil and gas outside of 罐.
For gas above the oil: You may set adiabatic boundary for gas heat transfer with 罐. For the top 顶部敞开: boudary for temperature and velocity: zero gradient.
Tip: You may calcualte the 2 domain in one cycle of iteration: The only difference is set different parameter for the two domain. |
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