wake refinment - aircraft cfd

Jarek · July 21, 2015, 09:27

Hello all,
I have question concerning meshing of the aircraft.
Is it necessary to refine wake region of the aircraft at higher angle of the atack ? Does it have huge impact on the lift and drag coefficient ?
I noticed that in all studies engineers dont refine wake region or it is only small mesh refinement.

raju_mit · July 28, 2015, 05:05

To get the correct prediction of wake and boundary layer separation it is better to refine the region and to maintain the required Y - Plus value.

Jarek · July 28, 2015, 11:36

Of course Y+, in my case need to be close to 1 thats why i wonder if i can reduce number of cells in wake region.
Is there any best practice book or article concerning meshing in external aerodynamic ?

July 21, 2015, 09:27	wake refinment - aircraft cfd	#1
Jarek New Member Jarosław Join Date: Mar 2011 Posts: 5 Rep Power: 15	Hello all, I have question concerning meshing of the aircraft. Is it necessary to refine wake region of the aircraft at higher angle of the atack ? Does it have huge impact on the lift and drag coefficient ? I noticed that in all studies engineers dont refine wake region or it is only small mesh refinement.

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July 28, 2015, 05:05		#2
raju_mit New Member Raju Govindharajan Join Date: Sep 2009 Location: Chennai, India Posts: 5 Rep Power: 16	To get the correct prediction of wake and boundary layer separation it is better to refine the region and to maintain the required Y - Plus value.

July 28, 2015, 11:36		#3
Jarek New Member Jarosław Join Date: Mar 2011 Posts: 5 Rep Power: 15	Of course Y+, in my case need to be close to 1 thats why i wonder if i can reduce number of cells in wake region. Is there any best practice book or article concerning meshing in external aerodynamic ?