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Old   November 28, 2010, 09:51
Default 2D---axisymmetric
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Eddie
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when I use 2D solver my case worked successfully but when I changed it to axisymmetric the following error was appeared:

floating point error

I
should mention that I checked the boundary conditions and change them if needed.

can anyone help me?

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Old   November 28, 2010, 11:52
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?????????????????????????????????????????????????? ???????

Last edited by eddiegolpesar; November 28, 2010 at 12:40.
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Old   November 29, 2010, 08:15
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check that your rotation axis is in positive y-range
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Old   November 30, 2010, 06:56
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Quote:
Originally Posted by samsi View Post
check that your rotation axis is in positive y-range
Could you please explain more. where can I check it....
THanks
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Old   November 30, 2010, 07:41
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hey,

i) you must re-orient your geometry such that it lies fully along +X, +Y, +Z i.e, nothing should go below origin in any of the planes.

ii) Then before you start axisymmetric analysis in Fluent, ensure that the r,theta & z of the model lie along +Z, +Y and +X respectively

For more info, refer to Fluent user guide.
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Old   December 2, 2010, 07:58
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If you used Gambit, just move the entire geometry so that your geometry is in the +x+y quadrant and reload the case.
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Old   December 5, 2010, 03:04
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hi
do you know that in 2D aximetry problem fluent just solve the geometries that have the axis boundary condition on x direction?
for example you have a pipe and your pipe is vertical and your flow is water and come down through the pipe by force of gravity (-9.8 in y direction)
when you want to solve this problem with axis boudary you must make a geometry of a horizental pipe with -9.8 gravity on x direction, you must actually rotate your geometry for 90 degree.
hope you will solve your problem

Last edited by m.beh; December 5, 2010 at 03:52. Reason: a misrake I make
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