electric motor stator rotor air gap MRF approach for heat transfer coefficient

YAKUB A · August 20, 2023, 23:15

hi,
I have been working in PMS motor. Heat transfer coefficient in the air gap between Stator and Rotor have found analytically using Taylor's corelation. To find using fluent I have tried MRF approach. A fluid region drawn around rotor and given frame motion to it. Even after 500 iteration net Energy flux don't reduce much(almost same) and h value is pretty much less.
Then I have given solid rotation instead of frame motion that also did not help. Somewhere in MRF I'm making problem I think, Please help for the issue.

AlexanderZ · August 21, 2023, 04:29

check mesh quality

YAKUB A · August 25, 2023, 00:37

more than 10 million cells and mesh qualities are with in the limit

YAKUB A · August 25, 2023, 00:42

Quote:

Originally Posted by AlexanderZ

check mesh quality

more than 10 million cells and mesh qualities are with in the limit

August 20, 2023, 23:15	electric motor stator rotor air gap MRF approach for heat transfer coefficient	#1
YAKUB A New Member Yakub Join Date: Apr 2023 Posts: 8 Rep Power: 3	hi, I have been working in PMS motor. Heat transfer coefficient in the air gap between Stator and Rotor have found analytically using Taylor's corelation. To find using fluent I have tried MRF approach. A fluid region drawn around rotor and given frame motion to it. Even after 500 iteration net Energy flux don't reduce much(almost same) and h value is pretty much less. Then I have given solid rotation instead of frame motion that also did not help. Somewhere in MRF I'm making problem I think, Please help for the issue.

August 21, 2023, 04:29		#2
AlexanderZ Senior Member Alexander Join Date: Apr 2013 Posts: 2,363 Rep Power: 34	check mesh quality YAKUB A likes this. __________________ best regards ****************************** press LIKE if this message was helpful

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August 25, 2023, 00:37		#3
YAKUB A New Member Yakub Join Date: Apr 2023 Posts: 8 Rep Power: 3	more than 10 million cells and mesh qualities are with in the limit