Small-width wall-attached Coandǎ jets for flow control

The flow dynamics of small-width wall-attached jets generated by a Coand-effect nozzle is investigated unsteady Reynolds-averaged Navier–Stokes simulations. data are validated comparison with hot-wire velocity measurements performed on the same configurations. exhibit complex topology strongly influenced not only spanwise vorticity (as usually observed in wall jets) but also component normal to and induced shear layer developing jet sides. This results an original U-shaped whose characteristics studied detail for three different mass rates. robustness larger range injected rates finally presented discussed terms momentum near wall. resulting profiles point out that our injector expected be promising candidate active control gas-turbine compressors aeronautical energy applications.