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Search took 0.00 seconds. Search: Posts Made By: Josh
Forum: CFX July 21, 2011, 23:49
Replies: 29
Views: 6,289
Posted By Josh
We only studied the 0, 4, and 8 degree angles....

We only studied the 0, 4, and 8 degree angles. The agreement at 8 degrees, Re = 100k is excellent compared to the experiments at the same conditions (Fig. 21b in the paper).

For the record, we're...
Forum: CFX July 21, 2011, 17:02
Replies: 29
Views: 6,289
Posted By Josh
It stalled at about 8 degrees for the Re = 50k...

It stalled at about 8 degrees for the Re = 50k case with Tu = 0.25%. What should happen for this case, according to published DNS and LES results of Jones et al. and Almutairi et al., is continual...
Forum: CFX July 21, 2011, 02:26
Replies: 29
Views: 6,289
Posted By Josh
We haven't looked too in-depth as to this...

We haven't looked too in-depth as to this reasoning, but certain results have led us to propose certain hypotheses. The pressure and friction curve magnitudes of the SD7003 match published DNS and...
Forum: CFX July 20, 2011, 14:36
Replies: 29
Views: 6,289
Posted By Josh
Sorry. I did word that rather confusingly. Our...

Sorry. I did word that rather confusingly. Our under-prediction of lift occurred for the SD7003, not the NACA 0012. The NACA 0012 results in the above paper were quite good compared to certain...
Forum: CFX July 20, 2011, 11:20
Replies: 29
Views: 6,289
Posted By Josh
Here is the article I referenced earlier: ...

Here is the article I referenced earlier:

Counsil, J. and Goni Boulama, K. (2011), Validating the URANS shear stress transport γ −Reθ model for low-Reynolds-number external aerodynamics....
Forum: CFX July 15, 2011, 08:28
Replies: 29
Views: 6,289
Posted By Josh
In our case, steady state was only achievable for...

In our case, steady state was only achievable for higher Reynolds numbers and turbulence intensities. Stall occurs too early in our simulations, as well, and we also base our convergence on lift and...
Forum: CFX July 15, 2011, 06:04
Replies: 29
Views: 6,289
Posted By Josh
Hi Nick - What is your Reynolds number? ...

Hi Nick -

What is your Reynolds number?

We simulated the NACA 0012 with the gamma-theta model from Re = 48k to 250k and found that it almost consistently under-predicted lift due to the...
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