tsi incorporated copyright© 2002 tsi incorporated a sample of piv applications
TRANSCRIPT
Copyright© 2002 TSI Incorporated
TSI Incorporated
A SampleA Sampleofof
PIV PIV ApplicationsApplications
Copyright© 2002 TSI Incorporated
TSI Incorporated
PIV ApplicationsPIV Applications
Measuring “micro-flows”Measuring “micro-flows” Studies of turbulence structureStudies of turbulence structure Unsteady or periodic flowsUnsteady or periodic flows Capture transient flow detailsCapture transient flow details Complex steady flow fieldsComplex steady flow fields Extremely low velocity flow fieldsExtremely low velocity flow fields Spatial gradients (at thousands of points) of instantaneous and Spatial gradients (at thousands of points) of instantaneous and
average flow propertiesaverage flow properties Obtaining global nature of flowsObtaining global nature of flows Examining spatial interdependence of flow propertiesExamining spatial interdependence of flow properties
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TSI Incorporated
MicroPIVMicroPIVStereoscopic arrangementStereoscopic arrangement
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Micro PIV SystemMicro PIV System
nminc 532
M i c r o c h a n n e l
C C D c a m e r a2 0 4 8 x 2 0 4 8 x 1 2 b i t
nmemit 610
F l u o r e s c e n t p a r t i c l e sO b j e c t i v e l e n s
O p t i c a l f i l t e r
R e l a y l e n s
M i c r o s c o p e F o c u s i n g b o d y
R o t a t i n g s t a g e
W o r k i n g D i s t a n c e
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Measurements in a Measurements in a “microchannel”“microchannel”
800 m
800 m
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Microchannel measurementsMicrochannel measurements
Kobayashi, Taniguchi Oshima Lab
University of TokyoUniversity of Tokyo
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Dual-plane stereoscopic PIV Dual-plane stereoscopic PIV systemsystem
Image recording systemImage recording system
Camera 3
Schiempflug condition
Mirror
Camera 2
250 250
Vertically polarized laser sheet (S-polarized light)
Polarizing beamSplitter cube
Camera 1
Horizontally polarized laser sheet (P-polarized light)
Lens planeMirror
Image plane
Camera 4
To laser system
Synchronizer
Courtesy: University of TokyoUniversity of Tokyo
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TSI Incorporated
Dual-plane stereoscopic PIV systemDual-plane stereoscopic PIV system Illumination systemIllumination system
V 5a
8a 7a 7b
8b
5b
10a
Lase
r tu
be 1
Lase
r tub
e
2 Lase
r tu
be 3
Lase
r tu
be 4
9a
6a
Mirror 12
9b
6b
10b
SHG
SHG
Polarizer 13
Mirror 15
Cylinder lens 14
V
VV
V(s) H(p)
V(s)V
H(p)
H(p)
V
V V
V (s)
Double-pulsed Nd:YAG laser set A
Double-pulsed Nd:YAG laser set B
Courtesy: University of TokyoUniversity of Tokyo
Copyright© 2002 TSI Incorporated
TSI Incorporated
Velocity field – Lobed NozzleVelocity field – Lobed Nozzle
Three dimensional Three dimensional velocity vectorsvelocity vectors
Isosurface Isosurface velocity vectorsvelocity vectors
Courtesy: University of TokyoUniversity of Tokyo
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TSI Incorporated
Microgravity measurementsMicrogravity measurements Combustion in MicrogravityCombustion in Microgravity
Courtesy: CNRS OrleansCNRS Orleans
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TSI Incorporated
Microgravity measurementsMicrogravity measurements Combustion in MicrogravityCombustion in Microgravity
Image field Velocity field
Courtesy: CNRS OrleansCNRS Orleans
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TSI Incorporated
Biomedical flowBiomedical flowMeasurements in a simulated heart chamberMeasurements in a simulated heart chamber
Biomedical application(University of Miami)
Biomedical application(University of Miami)
Courtesy: University of MiamiUniversity of Miami
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TSI Incorporated
Rotating MachineryRotating MachineryFlow in a high-speed compressorFlow in a high-speed compressor
Courtesy: NASA - LewisNASA - Lewis
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Rotating MachineryRotating Machinery
Courtesy: NASA - LewisNASA - Lewis
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Rotating machinery flowRotating machinery flow
10 1z
flow
diffuser
12
measurementregion
x
y
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Periodic swirling flowPeriodic swirling flowPhase-locked PIV measurementsPhase-locked PIV measurements
(2D) 01 Jun 1998 e:lisb98loc1loc1AVG.vec
20 40 60X mm
10
20
30
40
50
60
70
Ym
m
Speed2.142.001.861.731.591.451.321.181.040.910.770.630.500.360.220.08
(2D) 01 Jun 1998 e:lisb98loc1loc1AVG.vec
(2D) 01 Jun 1998 e:lisb98loc3loc3AVG.vec
20 30 40 50 60X mm
10
20
30
40
50
60
70
Ym
m
Speed1.061.000.940.870.810.750.680.620.560.490.430.370.300.240.180.11
(2D) 01 Jun 1998 e:lisb98loc3loc3AVG.vec
Average velocity field Z=1
Average velocity field Z=10
Copyright© 2002 TSI Incorporated
TSI Incorporated
IC EngineIC EnginePowerView PIV MeasurementsPowerView PIV Measurements
Courtesy: MSUMSU
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TSI Incorporated
IC EngineIC EnginePowerView PIV MeasurementsPowerView PIV Measurements
Courtesy: MSUMSU
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TSI Incorporated
GDI Internal Combustion GDI Internal Combustion EngineEngine
PowerView PIV MeasurementsPowerView PIV Measurements
Courtesy: MSUMSU
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TSI Incorporated
Flow in an IC EngineFlow in an IC Engine
Courtesy: General MotorsGeneral Motors
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Measurements in an IC EngineMeasurements in an IC Engine
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Helicopter rotor wakeHelicopter rotor wakeStereoPIV measurementsStereoPIV measurements
Courtesy: University of MarylandUniversity of MarylandAerospace EngineeringAerospace Engineering
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Helicopter rotor wakeHelicopter rotor wakeStereoPIV measurementsStereoPIV measurements
Courtesy: University of MarylandUniversity of MarylandAerospace EngineeringAerospace Engineering
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TSI Incorporated
Helicopter rotor flowHelicopter rotor flowStereoscopic PIV MeasurementsStereoscopic PIV Measurements
Courtesy: University of MarylandUniversity of MarylandAerospace EngineeringAerospace Engineering
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TSI Incorporated
Helicopter rotor flowHelicopter rotor flowStereoscopic PIV MeasurementsStereoscopic PIV Measurements
x component of velocity Vorticity field
Courtesy: University of MarylandUniversity of MarylandAerospace EngineeringAerospace Engineering
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TSI Incorporated
Measurements in flamesMeasurements in flames
Courtesy: Sandia LabsSandia Labs
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StereoPIV Measurements in a StereoPIV Measurements in a FlameFlame
Han, Su, Menon and Mungal (Lisbon 2000)Han, Su, Menon and Mungal (Lisbon 2000)
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TSI Incorporated
Instantaneous vs. AverageInstantaneous vs. Average
Han, Su, Menon and Mungal (Lisbon 2000)Han, Su, Menon and Mungal (Lisbon 2000)
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TSI Incorporated
Lifted-jet FlameLifted-jet FlameStereoscopic PIV MeasurementsStereoscopic PIV Measurements
Center plane Z = 10mm plane
Turbulent kinetic energyTurbulent kinetic energy
Han, Su, Menon and Mungal (Lisbon 2000)Han, Su, Menon and Mungal (Lisbon 2000)
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TSI Incorporated
Industrial spray burnerIndustrial spray burnerStereoPIV MeasurementsStereoPIV Measurements
Palero, Ikeda, Nakajima and Shakal (Lisbon 2000)Palero, Ikeda, Nakajima and Shakal (Lisbon 2000)
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TSI Incorporated
Measurements in a PlumeMeasurements in a PlumeUltrahigh resolution PIV MeasurementsUltrahigh resolution PIV Measurements
Courtesy: MITMIT
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Measurements in a PlumeMeasurements in a PlumeUltrahigh resolution PIV MeasurementsUltrahigh resolution PIV Measurements
Courtesy: MITMIT
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TSI Incorporated
Bubbly two-phase flowBubbly two-phase flowTwo-camera ArrangementTwo-camera Arrangement
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Bubbly two-phase flowBubbly two-phase flowTwo-camera ArrangementTwo-camera Arrangement
AirWater
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Flow around a robotic fruit flyFlow around a robotic fruit fly
Courtesy: University of California, BerkeleyUniversity of California, Berkeley
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Pressurized Water ReactorPressurized Water Reactor
Stefanini, Mignot, Saldo, Baroi and Conte (Lisbon 2000)Stefanini, Mignot, Saldo, Baroi and Conte (Lisbon 2000)
CFD Results PIV Measurements
Vorticity field
Velocity field
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Cylindrical Couette FlowCylindrical Couette Flow
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Atmospheric Boundary layer Atmospheric Boundary layer MeasurementsMeasurements
2m x 2m Field of view4 PIVCAM cameras
Courtesy: University of IllinoisUniversity of Illinois
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StereoPIV MeasurementsStereoPIV Measurements
Measuring region Pier
Courtesy: S. Dakota State University
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Flow Behind a cylindrical pierFlow Behind a cylindrical pierStereoscopic PIV MeasurementsStereoscopic PIV Measurements
Courtesy: S. Dakota State University
U component W component
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Measurements in a sprayMeasurements in a spray
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Gravity wavesGravity wavesStereoPIV MeasurementsStereoPIV Measurements
Lengrich, Graw and Kronewetter (Lisbon 2000)
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Channel FlowChannel Flow
0 10 20 30 40 500
5
10
15
20
25
30
35
Courtesy: University of Illinois
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Flow in a cavityFlow in a cavity( 2 D ) 0 4 M a y 1 9 9 7 C A V IT Y 1 . v e c( 2 D ) 0 4 M a y 1 9 9 7 C A V IT Y 1 . v e c
Raw image field Velocity vector field
Courtesy: Sandia Labs
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Swirling Flow in a PipeSwirling Flow in a Pipe
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Measurements in a steady Jet Measurements in a steady Jet FlowFlow
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Sonic jetSonic jet
Courtesy: NASA - Lewis
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Sonic jetSonic jet
(2D) 04May1997nasa.vec
5 10 15 20 25 30 35 40 45 50Xmm
35
40
45
50
55
60
65
70
75
80
Ymm
Speed: 50 100150200250300350400450
(2D) 04May1997nasa.vec
Courtesy: NASA - Lewis
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PIV in Supersonic FlowPIV in Supersonic Flow
Courtesy: ISL
Supersonic Supersonic flow PIV flow PIV
measurementsmeasurements
umax ~ 1400 m/sec
V- component
U - component
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Supersonic JetSupersonic Jet
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Flow field behind a carFlow field behind a car
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Air Flow In a ChamberAir Flow In a Chamber
Air flow in a 62 x 62 cm chamberAir flow in a 62 x 62 cm chamber– Region imaged 60 x 60 cm– Flow seeded using smoke
Flow in
Flow out
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Air flow - Large ChamberAir flow - Large Chamber (60 x 60 cm)(60 x 60 cm)
Magnitude of velocity x- component of velocity
Large Scale Flow Pattern
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PIV Results - Large ChamberPIV Results - Large ChamberAir flowAir flow
w - component of velocity
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PIV MeasurementsPIV Measurements Tank Water flowTank Water flow
Magnitude of velocity x- component of velocity
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PIV MeasurementsPIV Measurements3-component measurements in a channel flow3-component measurements in a channel flow
Vorticity W-component
Khalitov, Longmire and Anderson (1999)
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Underwater Flow Underwater Flow measurementsmeasurements
Courtesy: INSEAN
Underwater CameraUnderwater CameraUnderwater Laser Underwater Laser
Light sheetLight sheet
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Water flow behind a propellerWater flow behind a propellerNear wake: axial velocity fieldNear wake: axial velocity field
Axial velocity field at x = 0.59RAxial velocity field at x = 0.59R Cross flow at x = 0.59RCross flow at x = 0.59R
Courtesy: INSEAN
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Water flow behind a propellerWater flow behind a propeller Wake evolution: Turbulent fieldWake evolution: Turbulent field
X = 0.76 R
X = 1.85 R
X = 0.59 R Courtesy: INSEAN
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Underwater PIVUnderwater PIV
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Flowfield in a fanFlowfield in a fan
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Flowfield in a fan Flowfield in a fan Experimental ArrangementExperimental Arrangement
Camera 1 Camera 2
Volute
Laser
Air flow
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Flowfield in a fan Flowfield in a fan ResultsResults
VelocityVelocity VorticityVorticity
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Flowfield in a fan Flowfield in a fan ResultsResults
vort
vel
Strain rateStrain rate Strain rateStrain rate