splitMeshRegion problem(cell in multi zones)
 

Hi everyone, I'm a newer studying OpenFoam, and I want to use chtMultiRegionFoam to solve problem about heat transfer from the outside of tube to inner air. I followed other's work and used a "o" mesh methods. Then topoSet air and glass region, next splitMeshRegion. In this procedure, a problem about "cell in multi zones" happens. Dose anyone can give me some ideas about this problem? Maybe this tube mesh generation method is not suitable about this problem? "blockMeshDict" and "topoSetDict" are attached.Thank you!Attachment 69342