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zj860905

木虫 (小有名气)


[交流] 【求助】FLuent计算时出现错误

本人在用DPM模型计算非稳态的气液两相流的过程中,计算到一半就出现这样的错误计算终止,哪位达人能帮小弟看看是怎么回事啊!
计算了多次都出现以下2种错误
Advancing DPM injections ....
number tracked = 2688, escaped = 326, aborted = 0, trapped = 184, evaporated = 0, incomplete = 8, shed = 1240
  iter continuity x-velocity y-velocity z-velocity     energy          k    epsilon     time/iter
   618 9.7113e+00 4.0830e-08 5.1035e-08 7.2714e-08 9.3088e-02 7.9400e-01 8.5939e-02  0:11:01   40

Error: divergence detected in AMG solver: temperature
Error Object: ()


Advancing DPM injections ....
epsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallepsilon too smallnumber tracked = 7574, escaped = 47, aborted = 0, trapped = 833, evaporated = 0, incomplete = 2250, shed = 7530
  iter continuity x-velocity y-velocity z-velocity     energy          k    epsilon     time/iter
   576 5.0102e-01 1.1315e-08 1.5718e-08 3.9638e-09 1.1908e+02 1.2471e-02 1.6688e-02  0:09:08   40

Error: Floating point error: invalid number

Error Object: ()
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liufangkan

木虫 (著名写手)



xiegangmai(金币+1): 鼓励讨论交流! 2011-03-15 11:57:42
引用回帖:
Originally posted by zj860905 at 2011-03-15 10:04:57:
本人在用DPM模型计算非稳态的气液两相流的过程中,计算到一半就出现这样的错误计算终止,哪位达人能帮小弟看看是怎么回事啊!
计算了多次都出现以下2种错误
Advancing DPM injections ....
number tracked = 2 ...

浮点错误
2楼2011-03-15 10:44:51
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zj860905

木虫 (小有名气)


引用回帖:
Originally posted by liufangkan at 2011-03-15 10:44:51:
浮点错误

我也知道啊,但是该怎么解决
3楼2011-03-15 10:52:27
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zj860905

木虫 (小有名气)


引用回帖:
Originally posted by zj860905 at 2011-03-15 10:04:57:
本人在用DPM模型计算非稳态的气液两相流的过程中,计算到一半就出现这样的错误计算终止,哪位达人能帮小弟看看是怎么回事啊!
计算了多次都出现以下2种错误
Advancing DPM injections ....
number tracked = 2 ...

以上设置中我加入了DPM模型中的droplet breakup,这样对液滴的粘度以及表面张力就可以定义,当我不考虑液滴破碎模型是,以上错误就没有发生了,郁闷啊哪位大虾指点指点啊!
4楼2011-03-15 17:22:35
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沙漠的鱼!

新虫 (初入文坛)



小木虫: 金币+0.5, 给个红包,谢谢回帖
我做的也是离散相模型,采用的是气固两相流,但是一半计算报错,不知道怎么处理,
5楼2020-01-14 18:12:00
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