Взаимосвязь аномальной интенсификации отрывного течения и экстраординарных перепадов давления в канавке на пластине при изменении угла наклона от 0 до 90-=SUP=-o-=/SUP=-

A numerical and physical study of the air turbulent flow around a plate (with long inclined groove moderate depth which has hemispherical ends) is performed at Reynolds number 6.7×104, determined by width groove. The angle with respect to oncoming varies from 0 90°. stationary near-wall an incompressible viscous medium simulated solving Reynolds-averaged Navier-Stokes equations, closed using shear stress transport model. static pressure distributions in single grooves are measured wind tunnel Institute Mechanics Moscow State University. Inclined angles determined, anomalous intensification separated observed. resulting extraordinary drops good agreement ultra-high absolute values negative relative friction. Velocities return secondary swirling turn out be comparable velocity.