Psi and EDL on the surface of a sphere

[zhukansi]

Hi:
blockMeshDict.txt

I have some question about the calculation of psi and EDL.I sent a email to you because I failed to open github but now is ok.
My case is to describe the thermophoresis(The motion of a spherical particle in response to a temperature gradient).I use the model Nernstplanck to be my basic model.In this basic model I add the temperature field and the electric body force and the dielectric force.My case shows perfect result with 3D mesh.
Now,i want to use 2D mesh with my case,because the number of grids becomes very large when ka>10(a:radius of sphericity).So I use wedge type to describe a sphere in the middle of a cube with 2D mesh.And I successfully get the result when ka=0.1.The relative error is within 1%.But when ka=10,it falsed.I can not get the right distribution of psi and EDL with my own model,so I do some test using the basic model Nernstplanck,it failed too and the result is as same with my own.In order to describe it as clearly as possible, I wrote a file to the attachment.
Case test.pdf

[zhukansi]

In brief,I can't get the right distribution of psi and EDL on the surface of sphere when ka is large no matter the case is 2D or 3D but clinder is ok.Is there anything I have missed?

[zhukansi]

I have found the cause of the problem.The reason for the strange result was a display problem with the post-processing software paraview.It's ok when I use other post-processing software.