Simulations of compressible boundary layer flow at three different Reynolds numbers (Reδ = 5.59×10, 1.78×10, and 1.58×10) are performed using a hybrid large-eddy/Reynoldsaveraged Navier-Stokes method. Variations in the recycling/rescaling method, the higherorder extension, the choice of primitive variables, the RANS/LES transition parameters, and the mesh resolution are considered in order to a...

Vacuum fluctuations and the Casimir effect are considered in a cosmological setting. It is suggested that the dark energy, which recent observations suggest make up 73% of our universe, is vacuum energy due to a causal boundary effect at the cosmological horizon. After a discussion of the similarities and differences between material boundaries in flat spacetime and causal horizons in general r...

The present work is dedicated to the investigation of effect an isolated roughness element on a swept wing boundary layer. In particular, flow modifications incurred by single cylindrical applied model are measured, toward describing nature perturbations introduced in field, their development near and far wake region, as well eventual breakdown. measurements performed using infrared thermograph...