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Search: Posts Made By: Josh
Forum: CFX August 18, 2009, 12:31
Replies: 9
Views: 4,683
Posted By Josh
I have produced trailing vortexes along the side...

I have produced trailing vortexes along the side of the 3D airfoil. Success!

Backflow, however, still remains very small (roughly only 1 mm from the wall) or non-existent, depending on the...
Forum: CFX August 13, 2009, 16:04
Replies: 9
Views: 4,683
Posted By Josh
I ran the simulation as transient with adaptive...

I ran the simulation as transient with adaptive time steps. There are no backflow or trailing vortex regions.

Any clues?
Forum: CFX August 13, 2009, 11:28
Replies: 9
Views: 4,683
Posted By Josh
Thanks for the help, Glenn. I owe you a virtual...

Thanks for the help, Glenn. I owe you a virtual beer.

I'll try running the simulation as transient and see how it goes.

Josh
Forum: CFX August 12, 2009, 17:02
Replies: 9
Views: 4,683
Posted By Josh
In the link you provided, I have completed most...

In the link you provided, I have completed most of the steps:

I have read the Help file section on obtaining convergence and have diagnosed my problem based on its suggestions.

I used monitor...
Forum: CFX August 11, 2009, 17:47
Replies: 9
Views: 4,683
Posted By Josh
The solution hasn't been converging, I just...

The solution hasn't been converging, I just realized. I did a quick Solver analysis to guess the issues.

The v-Mom and w-Mom residuals did not converge.

Here are the locations of the maximum...
Forum: CFX August 11, 2009, 15:54
Replies: 9
Views: 4,683
Posted By Josh
I just tried running the simulation with a 5...

I just tried running the simulation with a 5 degree angle of attack (rather than 15) in order to avoid stall effects. Here's the result:
...
Forum: CFX August 11, 2009, 12:06
Replies: 9
Views: 4,683
Posted By Josh
Modeling Backflow for a 3D Airfoil (Wing of Finite Span)

Hi everyone -

The purpose of my current simulation is to demonstrate the backflow caused by the leading edge of a 3D airfoil. The backflow occurs along the side of the airfoil in the span-wise...
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