I am studying laminar boundary separation on a low Reynolds number and low aspect ratio wing. At high angle of attack (>15 degree), the separation occurs.

With unsteady simulation, I observe a secondary bubble which disappears after some time.

I need some advices and read some related papers in this area.

Thanks!

Look for papers on delta wings and leading edge separation...these experience secondary separation along with the primary leading edge separation.

Hi Yongsheng,

You can search and download useful papers from NASA's technical report servers at:

www.sti.nasa.gov

or try:

http://techreports.larc.nasa.gov/cgi-bin/NTRS

Good luck with your studies! Allan