Conical similarity of shock/boundary layer interactions generated by swept finsA parametric experimental study has been made of the class of 3D shock wave/turbulent boundary layer interactions generated by swept-leading-edge fins. The fin sweepback angles ranged from 0 to 65 deg at angles of attack of 5, 9, and 15 deg. Two equilibrium 2D turbulent boundary layers with a free-stream Mach number of 2.95 and a Reynolds number of 6.3 x 10 to the 7th/m were used as incoming flow conditions. All the resulting interactions were found to possess conical symmetry of surface pressures and skin friction lines beyond an initial inception zone. Further, these interactions revealed a simple similarity based on inviscid shock strength irrespective of fin sweepback or angle of attack.
Document ID
19830056011
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Lu, F. K. (Princeton University Princeton, NJ, United States)
Settles, G. S. (Princeton Univ. NJ, United States)