The basic problems of transition in both incompressible and compressible boundary layers
are reviewed. Flow structures in low-speed transitional and developed turbulent boundary …

Experiments are performed to investigate the effect of nose-tip bluntness on the instability
mechanisms leading to boundary-layer transition on a, the schlieren visualization region is …

The existing database of transition measurements in hypersonic ground facilities has
established that as the nose-tip bluntness is increased the onset of boundary-layer transition …

In this paper, we study the shape and dynamics of helical coherent structures found in the
flow field of an annular swirling jet undergoing vortex breakdown. The flow field is studied by …

The mechanism of trailing vortex wandering has long been debated and is often attributed to
either wind-tunnel effects or an instability. Using particle image velocimetry data obtained in …

Computations are performed to investigate the convective and global boundary-layer
instabilities over a sharp cone–cylinder–flare model at zero-degree angle of attack. The …

The purpose of this paper is to provide secondary instability analysis of stationary crossflow
vortices on a hypersonic yawed straight circular cone with a. At an angle of attack, a three …

Steady laminar flow over a rounded-tip. The flow conditions are selected to match the
planned flight of the Hypersonic Flight Research Experimentation HIFiRE-5 test geometry at …

Non-modal linear stability analysis results are presented for hypersonic flow over an elliptic
cone with an aspect ratio of two at zero angle of attack, completing earlier modal instability …

The present paper finds that the coexistence of multiple primary instability waves may cause
a non-trivial nonlinear interaction and breakdown process, which has not been reported …