2D---axisymmetric
 

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?

?????????????????????????????????????????????????? ???????

check that your rotation axis is in positive y-range

Could you please explain more. where can I check it....
THanks

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.

If you used Gambit, just move the entire geometry so that your geometry is in the +x+y quadrant and reload the case.

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