-Paul
Sure, here it is. As expected the drag is lower than the purely square stab, but the the separation is still present at very low angles of attack. All in all I think this has made the case for at least rounding all surfaces for the best preformance.


I have included some other images generated by FLUENT. These are pictures of our SAE AeroDesign aircraft and of particular interest is the ability to predict the position and magnitude of the wing tip vorticies. We used this data to design our winglets and were able to test it prior to committing to a prototype. Fun stuff. As I am still only scratching the surface of what this program is capable of doing I welcome all opportunities to do CFD analysis for anyone who might have an interesting problem or is just after some baseline drag data. I have done things such as characterized turbulator placement by observing the exact location of the separation point at various angles of attack. This program does have 3-D capability, but the meshes are significantly harder to generate and the processing time goes up exponentially!! (the SAE aircraft took 178,000 iterations over almost three days[X(] ) So if there are any other flow mysteries or challenges I welcome you to let me know!!!

-Matt