Hello, everyone! When I import mesh output by ICEM in FLUENT, some zones are seperated into new ones and the total zones increase. And their defualt names are always followed by "shadow", for example the original zone's name is "wall" which is a commen interface of two volumes, when it is seperated, the new increased zone's name is "wall-shadow", thus there are two wall boundaries at the original location. Is it a problem? Why these common interfaces of different volumes are always seperated inot two when it is imported by FLUENT? Give me your advice! Thanks a lot!

you change the wall into interior,the shade-wall will be disappear!

good luck to you!