TAGGED: #fluent-#ansys, #fluent-#cfd-#ansys, fluent
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May 7, 2024 at 9:28 am
Jim Beet
SubscriberI am attempting to simulate a spinning golf ball traveling through air at a certain speed. I tried employing the Moving Reference Frame (MRF) method, which involves two domains: an outer domain and an inner domain (the rotating domain). However, after calculation, the lift for the golf ball was determined to be negative, opposite to what was expected. I am unsure where I went wrong. Please provide guidance on resolving this issue. The flow speed is 18.46 m/s, and the golf ball is spinning at 1000 rpm. The mesh and solution setup are depicted in the picture below
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May 7, 2024 at 1:47 pm
Rob
Forum ModeratorIf you check the forces (not coefficients) how do they look? How well converged is the solution?Â
Do golf balls really spin at 1000rpm? Never played (unless crazy golf counts), but seems a lot of wasted energy from a shot.Â
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May 7, 2024 at 4:19 pm
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May 7, 2024 at 4:34 pm
Rob
Forum ModeratorThat looks pretty good, may be worth altering the scale to be sure but I tend to agree that it's converged. Now check the force definitions in the reports panel.Â
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May 7, 2024 at 4:53 pm
Jim Beet
Subscriberhow do I check the force definitions? sorry, I'm still new to Fluent ????
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May 8, 2024 at 9:15 am
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- The topic ‘Negative lift on golf ball simulation’ is closed to new replies.
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