1. TEAM AIRZOOKA FIVE MAE 101A Summer 1, 2011 Seungmin Go Young Jin Kim
Minjea Lee
Hyung Jin O
Seung Hyo Lee

2. BY MAKING AIRZOOKA, EXPERIENCE REAL TURBULENCE
WHAT’S THE PURPOSE OF
MAKING AN AIRZOOKA ?
BY MAKING AIRZOOKA, EXPERIENCE REAL TURBULENCE

3. WHAT’S TURBULENCE ?
TURBULENCE IS DEFINED AS AN EDDY-LIKE STATE OF FLUID MOTION WHERE THE INERTIAL VORTEX FORCES OF THE EDDIES ARE LARGER THAN ANY OTHER FORCES THAT THAT TEND TO DAMP THE EDDIES OUT.

4. YOU WILL MEET TWO MORE SECRET GUNS IN CLASS HAHA ;)
AIRZOOKA FIVE ? ?
YOU WILL MEET TWO MORE SECRET GUNS IN CLASS HAHA ;)

5. MAKING PROCESS

6. MAKING PROCESS

7. COMMON COMPONENTS
Tube
Front
Spring
Plastic bag
Handle

8. Uses super strong springs
PLUMBINGZOOKA BY
SEUNG HYO LEE
Uses super strong springs
and a plumbing tube

9. generates mega turbulence
BUCKETZOOKA BY
MINJEA LEE
Using a bucket,
generates mega turbulence

10. TURBOGUN BY
SEUNGMIN GO
Brush handle,
user friendly gun

11. ACEZOOKA BY
HYUNG JIN O
Fun, yet powerful ?

12. PING-PONG-ZOOKA
BY YOUNG JIN KIM
Extra fun with a ping pong ball

13. Airzooka fluid mechanics
Vorticity is produced in the nozzle boundary layer by viscous stresses
The boundary layer grows by vorticity diffusion until it reaches the Kolmogorov scale (ν3/ε)1/4 where inertial vortex forces produce turbulence
An airball is produced by spin rate Ω stabilized turbulent boundary layers rolling up like a wingtip vortex
Vortex breakdown occurs when (ε/Ω3)1/2 exceeds the size of the airball