problems with merging the patches between a pyramid and a cube
 

Dear Foamers!:)

I am trying to create series of slanted electrodes at the bottom of a channel to show the distribution of non-uniform electric field between them. My geometry is shown in the first attatched image. The red lines are electrodes with a positive voltage and the blue ones have a negative voltage.
Attachment 50172
The second image is another picture from the bottom of the channel. As it is seen, there is a connection between the blocks and the voltage distribution seems ok. In other words, the internal patches are merged correctly.
Attachment 50171
However, when I try to merge the patches between the bottom and upper blocks, openfoam gives me an unreasonable result.:confused: I think the problem is due to those 6-vertice blocks. I am not able to merge them properly.
Attachment 50173
Attachment 50174
Do you think merging patch pairs is the right way to do this? What is the problem?
I have attached my blockMesh.

Thank you in advance for helping me.;)