Download - Gasoline Spray (Spray G) Topic 3.4 Drop size measurement Scott Parrish (GM)

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Page 1: Gasoline Spray  (Spray G) Topic 3.4 Drop size  measurement Scott Parrish (GM)

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ECN

Gasoline Spray (Spray G)Topic 3.4 Drop size measurement

Scott Parrish (GM)

Spray G – Drop Sizing

Page 2: Gasoline Spray  (Spray G) Topic 3.4 Drop size  measurement Scott Parrish (GM)

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ECNOptics

Collection angle (°) 35Refractive Index 1.39

Ch 1 Ch 2Wavelengths (nm) 532 491Focal length (mm) 320 320

Beam spacing (mm) 60 60Beam diameter (mm) 3.5 3.5Frequence Shift (MHz) 40 45

Fring spacing (μm) 2.9 2.9Beam waist diameter (μm) 61.9 59.2

Slit width (μm) variable (25-50)

Processors Set-UpFFT Bins 2048 2048

Analog filter (MHz) 80 80Variable Mixer (MHz) 45 35Sample Rate (MHz) 160 160

BD Decimation none noneAmplitude threashold (mV) 100 200

Page 3: Gasoline Spray  (Spray G) Topic 3.4 Drop size  measurement Scott Parrish (GM)

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ECN

15 mm 10 mm

PDI Measurement Locations

Spray G – Drop Sizing (GM)

Note: perform preliminary measurements to identify center of plume

Page 4: Gasoline Spray  (Spray G) Topic 3.4 Drop size  measurement Scott Parrish (GM)

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ECN13 mm Radial

Spray G – Drop Sizing (GM)

0 1 20

500

1000

1500Drop Count

Time (ms)

Cou

nt (-

)

Total Drops 6753

0 1 20

10

20

SMD

Time (ms)D

iam

eter

(um

) SMD 8.6Dv90 13.1

0 1 2

0

50

100Axial Velocity

Time (ms)

Vel

ocity

(m/s

) Mean 16.4Max 67.8

0 1 2

0

50

100Radial Velocity

Time (ms)

Vel

ocity

(m/s

) Mean 11.7Max 63.0

15 mm

Page 5: Gasoline Spray  (Spray G) Topic 3.4 Drop size  measurement Scott Parrish (GM)

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ECN Spray G – Drop Sizing (GM)

0 1 20

500

1000

1500Drop Count

Time (ms)

Cou

nt (-

)

Total Drops 4643

0 1 20

10

20

SMD

Time (ms)D

iam

eter

(um

) SMD 9.7Dv90 14.8

0 1 2

0

50

100Axial Velocity

Time (ms)

Vel

ocity

(m/s

) Mean 37.6Max 95.0

0 1 2

0

50

100Radial Velocity

Time (ms)

Vel

ocity

(m/s

) Mean 11.0Max 56.1

15 mm

10 mm Radial

Page 6: Gasoline Spray  (Spray G) Topic 3.4 Drop size  measurement Scott Parrish (GM)

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ECN Spray G – Drop Sizing (GM)

Radial Scan

15 mm 10 mm

Transverse Scan

Page 7: Gasoline Spray  (Spray G) Topic 3.4 Drop size  measurement Scott Parrish (GM)

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ECN

20

40

60

80

100

120

0

5

10

15

20

25

0 0.1 0.2 0.3 0.4

Axia

l Vel

ocity

(m/s

)

Axia

l Pen

etra

tion

(mm

)

Time ASOI (ms)

Axial Penetrtion and Velocity

Spray G – Drop Sizing (GM)

Page 8: Gasoline Spray  (Spray G) Topic 3.4 Drop size  measurement Scott Parrish (GM)

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ECN Spray G – Drop Sizing (GM)

Radial Scan

15 mm 10 mm

Transverse Scan

Page 9: Gasoline Spray  (Spray G) Topic 3.4 Drop size  measurement Scott Parrish (GM)

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ECN Spray G – Drop Sizing (GM)

0 1 20

500

1000

1500Drop Count

Time (ms)

Cou

nt (-

)

Total Drops 4461

0 1 20

10

20

SMD

Time (ms)D

iam

eter

(um

) SMD 8.1Dv90 12.4

0 1 2

0

50

100Axial Velocity

Time (ms)

Vel

ocity

(m/s

) Mean 9.7Max 53.2

0 1 2

0

50

100Radial Velocity

Time (ms)

Vel

ocity

(m/s

) Mean 5.0Max 37.8

15 mm

-3 mm Transverse

Page 10: Gasoline Spray  (Spray G) Topic 3.4 Drop size  measurement Scott Parrish (GM)

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ECN Spray G – Drop Sizing (GM)

0 1 20

500

1000

1500Drop Count

Time (ms)

Cou

nt (-

)

Total Drops 2537

0 1 20

10

20

SMD

Time (ms)D

iam

eter

(um

) SMD 7.7Dv90 12.7

0 1 2

0

50

100Axial Velocity

Time (ms)

Vel

ocity

(m/s

) Mean 7.9Max 64.8

0 1 2

0

50

100Radial Velocity

Time (ms)

Vel

ocity

(m/s

) Mean 3.5Max 44.7

15 mm

3 mm Transverse

Page 11: Gasoline Spray  (Spray G) Topic 3.4 Drop size  measurement Scott Parrish (GM)

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ECN Spray G – Drop Sizing (GM)

200 μs

Page 12: Gasoline Spray  (Spray G) Topic 3.4 Drop size  measurement Scott Parrish (GM)

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ECN Spray G – Drop Sizing (GM)

400 μs

Page 13: Gasoline Spray  (Spray G) Topic 3.4 Drop size  measurement Scott Parrish (GM)

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ECN Spray G – Drop Sizing (GM)

600 μs

Page 14: Gasoline Spray  (Spray G) Topic 3.4 Drop size  measurement Scott Parrish (GM)

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ECN Spray G – Drop Sizing (GM)

800 μs

Page 15: Gasoline Spray  (Spray G) Topic 3.4 Drop size  measurement Scott Parrish (GM)

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ECN Spray G – Drop Sizing (GM)

1000 μs