How combine two parts before mesh?
 

Hi,
I am beginner in ansys workbench, I know some mechanical apdl with thermal, in mechanical we glue two parts before mesh, in workbench thermal fluent How combine two parts before mesh to make in picture for example?

How can ı learn ansys flunt or cfx (thermal, heat exchange)? where can ı find source video tutorial for beginner?

My english is awful :(

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google "ansys customer portal"