Actuation• Time instants of pulsed jet(a)
(b)
(c)
Results
• Velocity vectors and vorticity contours along a plane D, no control (left) and control (right).
Vortex Patterns
• Visbal and Gursul call it “dual vortex structure”
PIV results (cont.)
• Planes 2(z/b= 0.209) and 3 (z/b= 0.334) with actuation.
Results (cont.)• Plane A, control, t=0,t=T/8
Results (cont.)
• Plane A, control, t=2T/8,t=3T/8
Results (cont.)• Plane A, control, t=4T/8,t=5T/8
Results (cont.)
• Plane A, control, t=6T/8,t=7T/8
Results (cont.)
• Plane 8, t=0
No control Control
Results (cont.)
• Plane 8, t=T/8
No control Control
Results (cont.)
• Plane 8, t=2T/8
No control Control
Results (cont.)
• Plane 8, t=3T/8
No control Control
Results (cont.)
• Plane 8, t=4T/8
No control Control
Results (cont.)
• Plane 8, t=5T/8
No control Control
Results (cont.)
• Plane 8, t=6T/8
No control Control
Results (cont.)
• Plane 8, t=7T/8
No control Control
Results (cont.)
• Planes B and C, control
Results (cont.)
• Plane 10, t=0
No control Control
Results (cont.)
• Plane 10, t=T/8
No control Control
Results (cont.)
• Plane 10, t=2T/8
No control Control
Results (cont.)
• Plane 10, t=3T/8
No control Control
Results (cont.)
• Plane 10, t=4T/8
No control Control
Results (cont.)
• Plane 10, t=5T/8
No control Control
Results (cont.)
• Plane 10, t=6T/8
No control Control
Results (cont.)
• Plane 10, t=7T/8
No control Control
Results (cont.)• Plane D, no control and control