[wlt_1985]

After iterations, I display velocity magnitude with contour and vector. However, the results arenot same to each others. Does somebody know what problem is going on?

Thanks for help.

[Bernhard]

It is very likely that you made a mistake somewhere. Can you post figures of the contours and vector that are not the same, and printscreen of the relevant settings in Fluent?

[wlt_1985]

Originally Posted by Bernhard

It is very likely that you made a mistake somewhere. Can you post figures of the contours and vector that are not the same, and printscreen of the relevant settings in Fluent?

Thanks for checking. I am willing to use sliding mesh to model the fluid phenomenon due the the interaction of the stator and the rotor but facing difficulties in setting it. Do you have any recommendation for me to model it correctly?

[Bernhard]

The colorbars are denoting different values. There is some peak value close to the wall, that is not included in your vector plot. Everything green and bluer in your vectorplot, is in the lowest bin of your contour. In your contour, you can decrease your maximum value by a factor of 10.

With respect to your case you should do some checks with respect to the mesh dependency, I think a finer mesh, especially near the sliding wall, may improve your results. At least what I wrote above explains the difference between your to figures, but then you probably dismiss the important phenomena of your interest.

[wlt_1985]

Originally Posted by Bernhard

The colorbars are denoting different values. There is some peak value close to the wall, that is not included in your vector plot. Everything green and bluer in your vectorplot, is in the lowest bin of your contour. In your contour, you can decrease your maximum value by a factor of 10.

With respect to your case you should do some checks with respect to the mesh dependency, I think a finer mesh, especially near the sliding wall, may improve your results. At least what I wrote above explains the difference between your to figures, but then you probably dismiss the important phenomena of your interest.

Thanks a lot. It totally helps me a lot. I am willing to model the fluid motion (in which the fluid is initially stationary and around a solid impeller) induced by a solid impeller. Is sliding mesh suitable in modeling this case? Any recommendation in setting it especially the boundary condition?

Thanks for help.