照着fluent动网格(阀门例子)出现的问题！！！

liyuhu1982 · 发表于 2005-8-25 22:11:24

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照着fluent动网格(阀门例子)出现的问题，例子上说迭代80时间步，我迭代22个时间步，说出现负体积，是什么回事？
有这样提示
reversed flow in 16 faces on pressure-outlet 15.
!  813 solution is converged
813 9.9919e-04 1.8706e-04 1.7329e-04 4.6382e-04 8.9065e-04  0:00:03 62
Flow time = 8.8e-05, time step = 22
58 more time steps
Updating solution at time level N... done.
Updating mesh at time level N...not all cell got interpolated
not all cell got interpolated
not all cell got interpolated
UDF valve: time = 0.000092, x_vel = -23.416164, force = -399.759033, loc(m)= -0.002837
negative volume: repeat smoothing
negative volume: repeat smoothing
negative volume: repeat smoothing

WARNING: non-positive volumes exist.
Error: Update-Dynamic-Mesh failed. Negative cell volume detected.
Error Object: ()
Grid Check
Domain Extents:
x-coordinate: min (m) = 0.000000e+00, max (m) = 1.513770e-02
y-coordinate: min (m) = 0.000000e+00, max (m) = 6.858001e-03
Volume statistics:
WARNING: non-positive volumes exist.
minimum volume (m3): -1.049265e-09
maximum volume (m3): 1.530355e-09
   total volume (m3): 8.753680e-07
minimum 2d volume (m3): -4.709124e-15
maximum 2d volume (m3): 1.645804e-08
Face area statistics:
minimum face area (m2): 1.575216e-09
maximum face area (m2): 1.166621e-06
Checking number of nodes per cell.
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Checking number of faces per cell.
Checking thread pointers.
Checking number of cells per face.
Error: face on thread 19 does not have two cells.
Checking face cells.
Error: face points to cell, but cell doesn';t point to face (thread 19)
Error:
FLUENT received fatal signal (ACCESS_VIOLATION)
1. Note exact events leading to error.
2. Save case/data under new name.
3. Exit program and restart to continue.
4. Report error to your distributor.
Error Object: ()
Grid Check
Domain Extents:
x-coordinate: min (m) = 0.000000e+00, max (m) = 1.513770e-02
y-coordinate: min (m) = 0.000000e+00, max (m) = 6.858001e-03
Volume statistics:
WARNING: non-positive volumes exist.
minimum volume (m3): -1.049265e-09
maximum volume (m3): 1.530355e-09
   total volume (m3): 8.753680e-07
minimum 2d volume (m3): -4.709124e-15
maximum 2d volume (m3): 1.645804e-08
Face area statistics:
minimum face area (m2): 1.575216e-09
maximum face area (m2): 1.166621e-06
Checking number of nodes per cell.
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Cell on zone 4 has a face 0 (zone 19) with nodes not referenced by the cell
Checking number of faces per cell.
Checking thread pointers.
Checking number of cells per face.
Error: face on thread 19 does not have two cells.
Checking face cells.
Error: face points to cell, but cell doesn';t point to face (thread 19)
Error:
FLUENT received fatal signal (ACCESS_VIOLATION)
1. Note exact events leading to error.
2. Save case/data under new name.
3. Exit program and restart to continue.
4. Report error to your distributor.
Error Object: ()
Error:
FLUENT received fatal signal (ACCESS_VIOLATION)
1. Note exact events leading to error.
2. Save case/data under new name.
3. Exit program and restart to continue.
4. Report error to your distributor.
Error Object: ()
Error:
FLUENT received fatal signal (ACCESS_VIOLATION)
1. Note exact events leading to error.
2. Save case/data under new name.
3. Exit program and restart to continue.
4. Report error to your distributor.
Error Object: ()
Error:
FLUENT received fatal signal (ACCESS_VIOLATION)
1. Note exact events leading to error.
2. Save case/data under new name.
3. Exit program and restart to continue.
4. Report error to your distributor.
Error Object: ()
Contour level 17, value in [2328.4233, 2527.0583].
Contour level 5, value in [-55.196941, 143.43806].
Contour level 6, value in [143.43806, 342.07309].
Contour level 5, value in [-55.196941, 143.43806].
Contour level 6, value in [143.43806, 342.07309].
Contour level 7, value in [342.07309, 540.70807].
Contour level 7, value in [342.07309, 540.70807].
Contour level 7, value in [342.07309, 540.70807].
Contour level 7, value in [342.07309, 540.70807].
Contour level 7, value in [342.07309, 540.70807].
Contour level 7, value in [342.07309, 540.70807].
Contour level 7, value in [342.07309, 540.70807].
Zone ID = 10, name = poppet, type = wall
Contour level 7, value in [342.07309, 540.70807].
Contour level 7, value in [342.07309, 540.70807].
Contour level 7, value in [342.07309, 540.70807].
Contour level 7, value in [342.07309, 540.70807].
Contour level 7, value in [342.07309, 540.70807].
Contour level 7, value in [342.07309, 540.70807].
Contour level 7, value in [342.07309, 540.70807].
Contour level 7, value in [342.07309, 540.70807].
Contour level 5, value in [-55.196941, 143.43806].
Error: Floating point error: divide by zero
Error Object: ()
>
Error: Floating point error: divide by zero
Error Object: ()
>
Error: FLUENT received a fatal signal (SEGMENTATION VIOLATION).
Error Object: ()
Error: cx-set-list-items: wta[1](widget)
Error Object: #f
Error: cx-set-list-items: wta[1](widget)
Error Object: #f
Error message from graphics function Compute_Selection:
';/driver/opengl/win+w1/inner/text'; is not a direct descendant of ';/driver/opengl/win+w0';
是怎么回事呀！哪位大哥帮帮忙亚！！！

flybetter · 发表于 2006-9-22 10:36:35

能把例子给发一下吗？
liuwenxia@163.com
非常感谢！！

zzl15 · 发表于 2006-11-14 17:12:40

我也想试一下这个例子，如果出现了你的问题，我会认真阅读，想想解决的方法的
zzl_hust@163.com

gallongallon · 发表于 2006-11-16 13:30:04

出现负体积，参数不合理，特别是时间步及最大最小单元SIZE的设定

blbustb · 发表于 2006-11-17 13:48:47

楼主能给我也发一下这个例子吗？
blb_ustb@sohu.com

hopechina · 发表于 2006-11-21 12:22:24

楼主帮忙发个阀门例子，先谢了！
denox@sina.com

jimee · 发表于 2006-12-25 23:41:52

我也需要这个例子，楼主能否给我发一份，谢谢！邮箱jimee_lzj@163.com

lzhenggang · 发表于 2007-2-14 16:59:38

这个例子我做了，没有问题，照着fluent中的说明就可以了。

ronger0216 · 发表于 2007-6-30 10:51:07

给我传份吧
我的邮箱：wangfayong2001@163.com
兄弟先行谢过了

lilyK360 · 发表于 2007-7-6 22:11:12

那本书上的例子啊？

sdzym · 发表于 2007-9-28 11:43:00

下面引用由liyuhu1982在 2005/08/25 10:11pm 发表的内容：
照着fluent动网格(阀门例子)出现的问题，例子上说迭代80时间步，我迭代22个时间步，说出现负体积，是什么回事？
有这样提示
reversed flow in 16 faces on pressure-outlet 15.
! 813 solution is converged
...

[br][br][以下内容由 sdzym 在 2007年09月28日 11:47am 时添加] [br]
reversed flow in 16 faces on pressure-outlet 15
minimum volume (m3): -1.049265e-09
重新划分网格,首先解决网格的问题,不要出现负体积.你的回流问题,估计就是负体积造成的

wjs1111 · 发表于 2008-4-19 21:11:44

下面引用由liyuhu1982在 2005/08/25 10:11pm 发表的内容：
照着fluent动网格(阀门例子)出现的问题，例子上说迭代80时间步，我迭代22个时间步，说出现负体积，是什么回事？
有这样提示
reversed flow in 16 faces on pressure-outlet 15.
! 813 solution is converged
...

dqpilzh · 发表于 2009-11-5 07:57:47

能分享一下你的例子么，我也想做做，十分感谢

啥也不是 · 发表于 2010-1-23 14:18:57

回流应该没有大的影响吧？

易阳 · 发表于 2010-2-8 03:45:31

共享下吧，，楼主，，谢谢，，icc117@163.com

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照着fluent动网格(阀门例子)出现的问题！！！

马上注册，结交更多好友，享用更多功能，让你轻松玩转社区。