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371643446

铁杆木虫 (小有名气)

[求助] 求助:四角切圆煤粉燃烧模拟pdf出错

22 1.3842e+00 6.4299e-03 6.9504e-03 1.2383e-02 2.6444e-02 1.1020e-02 1.2507e-02 1.8905e-01 1.1230e-02 1.1964e-02 501:04:40 199978
Maximum PDF table temperature in 525 cells on zone 2 .
Minimum PDF table temperature in 12946 cells on zone 2 .
  iter continuity x-velocity y-velocity z-velocity     energy          k    epsilon      fmean       fvar         p1     time/iter
    23 8.7800e-01 6.1050e-03 6.7158e-03 1.1533e-02 2.2179e-02 1.1047e-02 1.1915e-02 9.6071e-02 2.9682e-01 1.4895e-02 500:50:55 199977
请问各位是什么原因?多谢
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5超7

至尊木虫 (著名写手)

菜鸟

【答案】应助回帖

感谢参与,应助指数 +1
371643446(金币+1): ★有帮助 2012-02-13 16:33:34
xiegangmai(金币+1): 谢谢参与! 2012-02-13 21:34:55
我怎么觉得粉煤燃烧不应该用pdf,而应该用组分输运模型呢!
改变初始化的方式试试看。。。只是个人观点
我要奋斗到底
2楼2012-02-12 10:25:44
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371643446

铁杆木虫 (小有名气)

引用回帖:
楼: Originally posted by 5超7 at 2012-02-12 10:25:44:
我怎么觉得粉煤燃烧不应该用pdf,而应该用组分输运模型呢!
改变初始化的方式试试看。。。只是个人观点

6.2的tutorial文件里面关于煤粉燃烧这样说:In general, you may need to start your coal combustion calculations by patching a high-temperature region and performing a discrete phase trajectory calculation. This provides the initial volatile and char release required to initiate combustion. The Solve/Initialize/Patch...menu item and the solve/dpm-update text command can be used to perform this initialization.
我试着做了,但是还是有超限问题
3楼2012-02-13 16:39:37
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5超7

至尊木虫 (著名写手)

菜鸟

xiegangmai(金币+1): 鼓励讨论交流! 2012-02-13 21:35:26
引用回帖:
3楼: Originally posted by 371643446 at 2012-02-13 16:39:37:
6.2的tutorial文件里面关于煤粉燃烧这样说:In general, you may need to start your coal combustion calculations by patching a high-temperature region and performing a discrete phase trajectory calcul ...

老实说,我对燃烧不是很懂。。。没有进行燃烧的计算,不过燃烧超温是很常见的现象,你加入了离散相没有?
我要奋斗到底
4楼2012-02-13 17:51:28
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rewind

至尊木虫 (正式写手)

【答案】应助回帖

感谢参与,应助指数 +1
xiegangmai(金币+1): 谢谢参与! 2012-02-13 21:35:11
已经提示您了

Maximum PDF table temperature in 525 cells on zone 2 .
Minimum PDF table temperature in 12946 cells on zone 2 .
在外种地...
5楼2012-02-13 19:28:42
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5超7

至尊木虫 (著名写手)

菜鸟

引用回帖:
5楼: Originally posted by rewind at 2012-02-13 19:28:42:
已经提示您了

Maximum PDF table temperature in 525 cells on zone 2 .
Minimum PDF table temperature in 12946 cells on zone 2 .

能说明白点吗?我以后可能要做燃烧,现在想多方面了解一点
我要奋斗到底
6楼2012-02-13 22:42:50
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page23

新虫 (小有名气)

引用回帖:
6楼: Originally posted by 5超7 at 2012-02-13 22:42:50
能说明白点吗?我以后可能要做燃烧,现在想多方面了解一点...

想问一下,你这个问题解决了没有?
7楼2014-08-23 14:49:06
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