[hittie]

hello everybody,

i need some help because i need to mesh a heat exchanger and the solid representig the heat exchanger is made from 2 rectangular bodies :the first one (heated volume) is the one supporting the "winglets" and the second one ( the heater) is pierced with 2 pipes. One of the two ducts is only a half pipe and the heat comes from the external surface of the pipes ( they are empty and the inside should not be meshed but only the external block). I joined the 2 bodies using the merge function and now it's a unique body .I want to mesh the body using map option but when i do this it says "vertex type not compatible".

How can i mesh it using map, submap or cooper option?

thanks for the help

PS: i linked the picture explainig a little bit more the situation
http://img339.imageshack.us/img339/9840/fig1.png