Simultaneous drag reduction (-8%) and lift increase (+3%) in airfoil wing modification

Hello,
my name is Jorge Cuchi Esteve and I’m writting from Spain.

I’m industrial engineer and I enjoyed working with SimScale for my aerodynamics curiosity.

One day I thought about trying to create just a little aircushion in an airfoil in the frontline, my expect was that this could reduce drag, but my surprise has been that it also helps to increase lift.
If you want to have a look at the most representative public project that I have in my user jcuchi_esteve are the following:
wing 6410 12D NM V02
wing 6410 12D LM V02

I also did many projects with a sportscars frontwing, and at the moment it always gives good results.

I’ve been looking for the airfoil modification in other sources, but I never found it. Does anybody of the forum knows if it already existed?
Otherwise, do you thing this modification would be useful? what things could have to reinforce it, or what things could have to reject it from general aviation ?

On the other side, I’m always wondering if it works or if I didn’t introduced data correctly and it gives me wrong results. I knocked on several doors, but they’re all closed, only a couple of them were opened, the first one really helped me to reach a good calculation but couldn’t help to compare results with another software, the second one was a bit disappointing.

Finally, thanks to SimScale to give me, and general public, the oportunity to work with such powerful software and CPD, I would have never been able to get this results on my own without a support like SimScale.

Jorge

Here you’ve got direct links:

airfoil 6410, 12 degrees angle, not modified, 1500 seg run simulation, just as reference for the next link

airfoil 6410, 12 degrees angle, modified, 1500 seg run simulation, with better drag and lift coef

I wonder if I introduced data correctly to avoid wrong results, if that’s right I’m having results with better drag and lift coef

Regards,
Jorge