Unable to collect data from point receiver while performing On the Fly FW-H analysis

Rohith Giridhar · March 23, 2018, 21:49

Good morning,

I am performing Aeroacoustic analysis for a wind turbine blade that is rotating in a semi-cylindrical domain. When I am running the unsteady state CFD simulation (after setting up the point receiver and suitable FWH surfaces) I keep getting a Warning that says:

Warning: No implementation for periodic domain for impermeable boundaries, from not rotating region. See Receiver: Point Receiver;Boundary Name: Blade body

After this, when I try exporting the Thickness noise, Loading noise and Total noise files from the point receiver, I see that the files are empty and no data is being collected.

Could anybody please tell me how I can prevent this warning and ensure that the data is collected when I perform FWH analysis?

Thank you,
Sincerely,
Rohith.

kkyle · June 18, 2025, 21:47

I met the same problem when using permeable FWH surfaces to collect noise. There were no data to export for receivers based on permeable FWH, but receivers based on impermeable FWH surfaces worked correctly. Could anyone tell me why? THANS.

March 23, 2018, 21:49	Unable to collect data from point receiver while performing On the Fly FW-H analysis	#1
Rohith Giridhar New Member Rohith Giridhar Join Date: Apr 2015 Posts: 14 Rep Power: 12	Good morning, I am performing Aeroacoustic analysis for a wind turbine blade that is rotating in a semi-cylindrical domain. When I am running the unsteady state CFD simulation (after setting up the point receiver and suitable FWH surfaces) I keep getting a Warning that says: Warning: No implementation for periodic domain for impermeable boundaries, from not rotating region. See Receiver: Point Receiver;Boundary Name: Blade body After this, when I try exporting the Thickness noise, Loading noise and Total noise files from the point receiver, I see that the files are empty and no data is being collected. Could anybody please tell me how I can prevent this warning and ensure that the data is collected when I perform FWH analysis? Thank you, Sincerely, Rohith.

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June 18, 2025, 21:47		#2
kkyle New Member Victor Join Date: Dec 2024 Posts: 1 Rep Power: 0	I met the same problem when using permeable FWH surfaces to collect noise. There were no data to export for receivers based on permeable FWH, but receivers based on impermeable FWH surfaces worked correctly. Could anyone tell me why? THANS.