airfoil mesh genaration and simulation with a trip on surface issue

rajibroy · November 8, 2014, 00:01

Hi,
Could anyone help with mesh generation and simulation experience of an airfoil with trip?

I am working on hybrid LES-RANS simulation of Naca4412 airfoil at an angle of attack of 12 deg which produces maximum lift (Re= 1.6E6) (according the experiment of Wadcock, 1987). This configuration produces a trailing edge separation (separated turbulent flow phenomenon).

In the experimental investigation, the airfoil is tripped at leading edge on both pressure and suction side.

My attempt to simulate without a trip predicts less boundary layer growth and later separation. May be a simulation with a trip could provide better outcome.

I am using gMesh/pointwise for mesh generation (open to structured or unstructured mesh) and OpenFoam for CFD simulation. Any suggestion or comments is highly appreciated.

Best,
Rajib

Mehul Patel · December 3, 2014, 02:04

Hello,

Can you please share some more information as it will be difficult to see what is wrong just based on this description.
You can reach to me at: info@hitechcfd.com

November 8, 2014, 00:01	airfoil mesh genaration and simulation with a trip on surface issue	#1
rajibroy New Member Rajib Roy Join Date: Jun 2014 Location: Laramie, Wyoming Posts: 18 Rep Power: 11	Hi, Could anyone help with mesh generation and simulation experience of an airfoil with trip? I am working on hybrid LES-RANS simulation of Naca4412 airfoil at an angle of attack of 12 deg which produces maximum lift (Re= 1.6E6) (according the experiment of Wadcock, 1987). This configuration produces a trailing edge separation (separated turbulent flow phenomenon). In the experimental investigation, the airfoil is tripped at leading edge on both pressure and suction side. My attempt to simulate without a trip predicts less boundary layer growth and later separation. May be a simulation with a trip could provide better outcome. I am using gMesh/pointwise for mesh generation (open to structured or unstructured mesh) and OpenFoam for CFD simulation. Any suggestion or comments is highly appreciated. Best, Rajib Last edited by rajibroy; November 13, 2014 at 10:43. Reason: wrong wros placed

December 3, 2014, 02:04		#2
Mehul Patel Member Mehul Patel - CFD Expert Join Date: Jul 2013 Location: Ahmedabad Posts: 41 Rep Power: 12	Hello, Can you please share some more information as it will be difficult to see what is wrong just based on this description. You can reach to me at: info@hitechcfd.com __________________ Thanks, HiTech CFD - CFD Analysis Services Provider. http://www.hitechcfd.com/