Naca 4412 @aoa 2

Vishish · February 12, 2018, 07:32

I am simulating a simple NACA 4412 airfoil with velocity = 2m/sec @AOA 2. This Cl value is coming quite low, around 0.38 where it should have been 0.69.
I have tried using both Spallart and K-omega turbulence model, and there is nothing wrong with the mesh and the geometry.
Can anyone figure out what the problem might be. It's really bugging me now.

Dronzer · February 12, 2018, 08:35

Hi

I don't have much experience with Fluent.
But I suggest you to check the reference values once. Following links may be helpful.
https://www.sharcnet.ca/Software/Flu...g/node1207.htm
Reference Values- Reference Area
Reference values in FLUENT
Best of luck

Vishish · February 12, 2018, 09:12

I did try changing the reference area. But no luck there too. The value comes absurd.
Is it due to the low velocity?

February 12, 2018, 07:32	Naca 4412 @aoa 2	#1
Vishish New Member Vishish Behera Join Date: Jan 2017 Posts: 7 Rep Power: 9	I am simulating a simple NACA 4412 airfoil with velocity = 2m/sec @AOA 2. This Cl value is coming quite low, around 0.38 where it should have been 0.69. I have tried using both Spallart and K-omega turbulence model, and there is nothing wrong with the mesh and the geometry. Can anyone figure out what the problem might be. It's really bugging me now.

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February 12, 2018, 08:35		#2
Dronzer Member Join Date: Apr 2016 Posts: 53 Rep Power: 9	Hi I don't have much experience with Fluent. But I suggest you to check the reference values once. Following links may be helpful. https://www.sharcnet.ca/Software/Flu...g/node1207.htm Reference Values- Reference Area Reference values in FLUENT Best of luck

February 12, 2018, 09:12		#3
Vishish New Member Vishish Behera Join Date: Jan 2017 Posts: 7 Rep Power: 9	I did try changing the reference area. But no luck there too. The value comes absurd. Is it due to the low velocity?