XFlow Naca 0012 Validation

Mythorpios · June 27, 2016, 07:48

Hello. I am trying to validate XFlow results. I have started with analyzing NACA 0012 for Re 3000000. I have generated 3D NACA 0012 with 10k points,and analyzed in 2D. I could not get close results to the experimental airfoil data. I used 0.2 resolved scale, around 0.0003m target resolved scale and 0.004m wake resolution. It took 1.5 hours but not a valid result. How can I increase accuracy or what can be wrong about my approach? Thank you

fluid23 · June 27, 2016, 14:05

you have 10k nodes or cells? either way, your mesh sounds much too coarse for this analysis.

what do your wall y+ values look like and what turbulence & wall models are you using?

June 27, 2016, 07:48	XFlow Naca 0012 Validation	#1
Mythorpios New Member Berkay Yasin YILDIRIM Join Date: Jun 2016 Posts: 1 Rep Power: 0	Hello. I am trying to validate XFlow results. I have started with analyzing NACA 0012 for Re 3000000. I have generated 3D NACA 0012 with 10k points,and analyzed in 2D. I could not get close results to the experimental airfoil data. I used 0.2 resolved scale, around 0.0003m target resolved scale and 0.004m wake resolution. It took 1.5 hours but not a valid result. How can I increase accuracy or what can be wrong about my approach? Thank you

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June 27, 2016, 14:05		#2
fluid23 Senior Member Matt Join Date: Aug 2014 Posts: 947 Rep Power: 18	you have 10k nodes or cells? either way, your mesh sounds much too coarse for this analysis. what do your wall y+ values look like and what turbulence & wall models are you using?