The study of vortex rings formed behind accelerating bluff bodies is necessary to reduce their harmful effects or harvest potential. scaling the growth usually performed by comparing circulation with body size and velocity. This investigates various kinematics conical geometries propose a more robust based on circulation, energy, self-induced

We present the most relevant recent findings that allow for a rational timeaveraged description of laminar–turbulent transition of an incompressible nominally two-dimensional and steady boundary layer along the impermeable surface of a rigid blunt body. Rigorous application of matched asymptotic expansions for sufficiently high values of both the Reynolds number and a turbulence-level gauge par...

one of the most common methods for controlling and increasing maneuverability of projectiles, especially the ones which move at high altitude and in low density air, is using lateral or reaction jets. the resultant force of the reaction jet is related to the jet and flow parameters. for finding their relation experimental, numerical, and analytical methods have been used. in order to change the...