noisybaot 发表于 2009-7-13 10:27:33

ansys辐射热分析使用radiosity solver的问题

刚开始用的是aux12辐射矩阵的方法,可能是模型太大的缘故吧,计算机提示说内存不足,根本无法生成矩阵。

后来改用radiosity solver方法,倒是能算了,但是生成的view factor文件大小有50G多,另外我发现radiosity solver方法并行效率非常的低,同样的模型,计算速度远远慢于aux12辐射矩阵方法。

通过查找资料得知,radiosity solver方法是首先计算温度已知的面上的辐射热通量,再将此热通量作为边界条件,计算热传导方程,求解出温度分布的。通过观察任务管理器,我猜想在计算辐射热通量的阶段不是并行运行的,只有计算热传导方程地阶段是并行计算的。

在此请问论坛里有相关经验的高手,生成aux12辐射矩阵是否有一些窍门,避免内存不足的问题?抑或是否可以通过一些设置,提高radiosity solver方法的并行效率?ansys计算辐射问题是否有更好的方法?谢谢。

noisybaot 发表于 2009-7-15 17:11:54

顶上去~~希望有经验的朋友不吝赐教~

noisybaot 发表于 2009-7-27 15:22:17

两周了~~再顶~~

noisybaot 发表于 2009-8-11 09:11:56

我又顶~~希望高手能看到

noisybaot 发表于 2009-8-13 14:37:47

满月了,留念

lijianxin 发表于 2009-8-14 08:34:02

我顶,我也碰到了这种问题,希望高手不吝赐教。

lxl2009 发表于 2009-10-21 21:15:17

顶,楼主问题解决了吗?可否加你QQ?

noisybaot 发表于 2009-12-28 19:58:50

一直没有解决。。。再顶~~

jjjh1 发表于 2010-1-6 10:35:15

8# noisybaot

呵呵, 好像这个版里面的人比较少。

你有没有其他的做热辐射的例子啊,我也是刚刚学热辐射,有空讨论一下。

jjjh1 发表于 2010-1-6 10:36:26

1# noisybaot

你生成的文件就有50G,你的整个硬盘空间有多大啊?

那样不是需要算很长时间?

qrst386 发表于 2010-1-7 10:55:45

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qiaocuixia 发表于 2010-1-8 13:27:42

我也遇到相同情况!请高手指教!楼主你的qq是多少?可以一起讨论一下吗?

qiaocuixia 发表于 2010-1-8 13:32:15

楼主你用radiosity solver怎么求解的,你的模型节点和单元多大,怎么会算出50g的文件!请指教

qiaocuixia 发表于 2010-1-8 13:33:31

我的qq1131075470,可以交流一下!
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