Glass Sphere Flows
Home Up Exit Streamlets Theory vs Tests Predicted Separation Particle Size


Flow Visualization Results Performed on the 2nd of October, 4:30 - 8:00 PM

All pictures were taken using the following configuration with a Nikon Coolpix 990 camera

Speed: 1/15 s
Aperture: f/3.2
Laser: ~50%
Focal Length: 16 cm
ISO: Automatic

The pictures were separated into trials at gradations of 10 cm/s flow rates.
All flows in the pictures start at the bottom and flow to the exit at the top.

Comparison of Separation Distances for Solid 7 Micron, Solid 12 Micron, and Hollow 12 Micron Particle Flows Using Representative Flow Samples
 
Solid 7 Micron Particle Flow

Resonator Signal
of 450 V DC Offset
and 550 V AC

 Solid 12 Micron Particle Flow

Resonator Signal
of 450 V DC Offset
and 550 V AC

 Hollow 12 Micron Particle Flow

Resonator Signal
of 450 V DC Offset
and 550 V AC


Results from Separation Tests Using Nominally 7 Micron Diameter, Solid, Glass Particles
 
Reference Picture
for a Flow Speed

Resonator Signal

none

 First Picture
of a Set

Resonator Signal
of 450 V DC Offset
and 550 V AC

 Second Picture
of a Set

Resonator Signal
of 450 V DC Offset
and 550 V AC

 Third Picture
of a Set

Resonator Signal
of 450 V DC Offset
and 550 V AC

 Fourth Picture
of a Set

Resonator Signal
of 450 V DC Offset
and 550 V AC
10 cm/s flow 10 cm/s flow 10 cm/s flow 10 cm/s flow 10 cm/s flow
20 cm/s flow 20 cm/s flow 20 cm/s flow 20 cm/s flow 20 cm/s flow
30 cm/s flow 30 cm/s flow 30 cm/s flow 30 cm/s flow 30 cm/s flow

Results from Separation Tests Using Nominally 12 Micron Diameter, Solid, Glass Particles
 
Reference Picture
for a Flow Speed

Resonator Signal

none

 First Picture
of a Set

Resonator Signal
of 450 V DC Offset
and 550 V AC

 Second Picture
of a Set

Resonator Signal
of 450 V DC Offset
and 550 V AC

 Third Picture
of a Set

Resonator Signal
of 450 V DC Offset
and 550 V AC

 Fourth Picture
of a Set

Resonator Signal
of 450 V DC Offset
and 550 V AC
10 cm/s flow 10 cm/s flow 10 cm/s flow 10 cm/s flow 10 cm/s flow
20 cm/s flow 20 cm/s flow 20 cm/s flow 20 cm/s flow 20 cm/s flow
30 cm/s flow 30 cm/s flow 30 cm/s flow 30 cm/s flow 30 cm/s flow

Results from Separation Tests Using Nominally 12 Micron Diameter, Hollow, Glass Particles
 
Reference Picture
for a Flow Speed

Resonator Signal

none

 First Picture
of a Set

Resonator Signal
of 450 V DC Offset
and 550 V AC

 Second Picture
of a Set

Resonator Signal
of 450 V DC Offset
and 550 V AC

 Third Picture
of a Set

Resonator Signal
of 450 V DC Offset
and 550 V AC

 Fourth Picture
of a Set

Resonator Signal
of 450 V DC Offset
and 550 V AC
10 cm/s flow 10 cm/s flow 10 cm/s flow 10 cm/s flow 10 cm/s flow
20 cm/s flow 20 cm/s flow 20 cm/s flow 20 cm/s flow 20 cm/s flow
30 cm/s flow 30 cm/s flow 30 cm/s flow 30 cm/s flow 30 cm/s flow