From: Effect of an Inclined Slots on the Power Consumption and Vortices Size in a Rushton Turbine Agitated Tank
Vessel
Vessel with slots of F/D = 1/5
Reynolds number
Re = 4 × 104
Re = 6 × 104
Re = 8 × 104
Re = 9 × 104
Direction + ω
0.570
0.667
Direction − ω
0.391
0.404
0.432
0.460