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Gap produced in sliding mesh method

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Old   July 6, 2004, 19:26
Default Gap produced in sliding mesh method
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In applying the sliding mesh method at propeller flow prediction, the solid propeller will be wrapped by the fluid to form a rotor. Instead of rotate the embeded propeller, we rotate the entire rotor.

Should I minimise the gap between the propeller tip and rotor edge to reduce the inconsistency of the virtual rotating and the physical rotating?
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