I am from civil engineering, I am doing simulation and analysis (CFD and other statistical method) on flow around bluff bodies as in a wind tunnel. Different from in aerospace aerodynamics, our objects are generally very blunt and have sharp separation angles, for example flow around rectangular prisms, etc. The Re is very high (Re=1E5~1E8, incompressible, single phase).
Could anyone give me some advice from fluid mechanics point of view, how should I look into this type of problem and get most out of this research endeavor. I really hope that my research would be more solid and meaningful and general and fundamental! The question I have is equivalent to "How to ask the right question in the aerodynamic research."
Any general or specific suggestion would be highly appreciated.
For example, to put this in more detail, I would like to know:
- Any remaining problems in fluid mechanics that bluff-body flow would shed light on?
- Anything that deserves more attention on the wake flow?
- Is coherent structure around the surface a interesting topic?
- Inflow turbulence impact on reattachment?
Ideas from both academic and industry are welcomed.