ice accretion on airfoil - actually getting accretion

gt1 · February 20, 2010, 01:37

Hi,

I'm trying to validate a collection efficiency model with a NACA 0012 but am having trouble getting the water particles (inert) to even strike the surface of the airfoil.

I do have trap conditions set on the airfoil wall as well as the erosion/accretion option set in DPM. Injection type I have set is group, with 1500 particle streams. I also have the range of injection in the y direction from -3 to 3. Diameter is 1.6e-5. All distance units are in meters (not that it makes a difference).

Displaying the particles with respect to time with the grid background shows that none of the particles are even coming within the first 5 or 10 grid points.

Could someone offer a suggestion that would help in getting the particles to actually strike the wall (airfoil)?

Thank you!

Ish · June 11, 2011, 01:00

Hey,

I'm working on the same thing. I simulated the water droplets using DPM and injection options. And am having trouble with the water droplets striking the airfoil. How should I go about it ? Also how do i proceed to the accretion procedure ? Please help..

February 20, 2010, 01:37	ice accretion on airfoil - actually getting accretion	#1
gt1 New Member Dennis Join Date: Feb 2010 Posts: 1 Rep Power: 0	Hi, I'm trying to validate a collection efficiency model with a NACA 0012 but am having trouble getting the water particles (inert) to even strike the surface of the airfoil. I do have trap conditions set on the airfoil wall as well as the erosion/accretion option set in DPM. Injection type I have set is group, with 1500 particle streams. I also have the range of injection in the y direction from -3 to 3. Diameter is 1.6e-5. All distance units are in meters (not that it makes a difference). Displaying the particles with respect to time with the grid background shows that none of the particles are even coming within the first 5 or 10 grid points. Could someone offer a suggestion that would help in getting the particles to actually strike the wall (airfoil)? Thank you!

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Ice Accretion using Fluent	Virk	FLUENT	2	December 22, 2012 05:14
Ice accretion	Rafael Silveira	Main CFD Forum	14	December 6, 2012 09:44
Ice accretion and prediction	manivannan3017	OpenFOAM Running, Solving & CFD	1	September 2, 2010 15:49
Airfoil Ice Accretion Modelling Using Fluent	Virk	FLUENT	0	July 27, 2009 07:48
Ice on Airfoil: Solidius and Liquidius temp	Saima	FLUENT	0	April 12, 2009 20:33

June 11, 2011, 01:00		#2
Ish New Member Aisha Zahid Join Date: May 2011 Posts: 6 Rep Power: 15	Hey, I'm working on the same thing. I simulated the water droplets using DPM and injection options. And am having trouble with the water droplets striking the airfoil. How should I go about it ? Also how do i proceed to the accretion procedure ? Please help..