Is there a way to set the valu
 

Is there a way to set the value of internal nodes explicitly to certain value for all time?

The situation is as follows, I face a case where in small part of the domain, there are lots of protrusions of small size also. Presenting such small changes in geometry by different blocks is not convenient. On the other hand the local refinement that one gets from each block is not required, since this part of the domain is small and fine mesh can be used.

I have seen a message in the board about "timeVaryingUniformFixedValueFvPatchField" but I think this may not help since in my I case I need to set the value of indidual internal cell node(s) to zero without defining blocks for them for the above reasons.

Thanks.