You can mesh then together. Create blocks for entire geometry and then slice the blocks and then assign edges. It is similar to ICEMCFD.
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=video&cd=&cad=rja&uact=8&ved=2ahUKEwiDodvmuPT_AhUOR2wGHXLbC2cQtwJ6BAgCEAI&url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DipUaxzjfqh8&usg=AOvVaw2N8BTUtDcMhIZmQ_nrJ-Tn&opi=89978449
Regards,
Keyur
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