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Distance between parent-child domains


New member
Hey everyone I want to do a run using 2 nested domains, but I don't know if it exists any minimal distance between the parent and child domain boundaries. For example, in the attached image I have 2 domains, and the skyblue lines are the distances. Is there any good practice relationed with that?


  • WhatsApp Image 2023-07-25 at 5.40.45 PM.jpeg
    WhatsApp Image 2023-07-25 at 5.40.45 PM.jpeg
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Ming Chen

Staff member
There is no strict rule how far the distance should be between parents and child boundaries. Usually it is fine if the distance is larger than 15 grids.