A convex corner models the upper surface of a deflected flap and shock-induced boundary layer separation occurs at transonic speeds. This study uses micro-vortex generators (MVGs) for flow control. An array MVGs (counter-rotating vane type, ramp type co-rotating type) with height 20% thickness incoming is installed upstream corner. The pressure distributions are similar regardless presence MVGs...

The present study deals with the fundamentals of vortex evolution and merging across a 180° sharp bend for laminar inflow (Re = 800). A three-dimensional flow pressure distribution are analyzed by using particle image velocimetry measurements. results show that sudden redirection adverse gradient create recirculation region in vicinity divider wall. vorticity turbulent kinetic energy highlight ...

Wakes of upswept afterbodies are often characterized by counter-rotating streamwise vortex pairs which meander in space. One application concerns aft regions cargo aircraft, a relatively flat base. Here we consider canonical configuration comprised cylinder with basal surface. The resulting longitudinal vortices, much closer to each other than wing-tip can adversely influence paratrooper and dr...

In toroidal pipes, the secondary flow in cross section is a mirror symmetric pair of counter-rotating axially oriented Dean vortices. This symmetry broken helical pipes. We investigate detail breaking these flows going from to geometries. quantify degree by calculating both an (i) order-parameter − 1 ≤ χ that measures net integrated chirality vortices and (ii) entropy production due viscous she...

A vortex particle method for the simulation of twodimensional compressible flows is developed. The computational elements are Lagrangian particles that carry vorticity, dilatation, enthalpy, entropy and density. The velocity field is decomposed into irrotational and solenoidal parts, which allows its calculation in terms of the particles’ vorticity and dilatation. The particle coverage is trunc...

Designing and manufacturing the multiple jets simulator and experimental investigation of the multiple jets in crossflow at low velocity ratios have been studied Together with design and build a low-speed wind tunnel. A specific rake is used to determine the flow field pressure and changes in static pressure measured by pressure taps in the near field of the jets. There are generally three regi...