[csmistry]

Friends
i always do experiment for different problems.. Presently i am doing analysis of finned tube.

Problems are:
1. How to model gas passage, solid(tube ) and water passage(inside) tube. i used the concept of frozen option for gas passage and neglected tube surface second domain i select for water that is soli (add material-extrude) but... in case if i want all the 3 domains seperate what steps i follow...!!
2. for meshing i choose regions like GSAINLET,GASOUTLET,WATERIN,WATEROUT,INSIDE TUBE-SYM-1 SYM2,OUTERWALLGAS AND OUTERWALL GAS, FOR FINNED SURFACE I CHOOSE TWO WALLS OPTION... AM I GOING RIGHT ..