Post on 03-Jan-2016
description
TPFL: The Turbomachinery Performance and Flow Research LaboratoryTexas A&M University
M. T. Schobeiri
TPFL Calibration Facilities
TPFL Facilities Include:
Facility for calibrating five hole probes, single and cross hot wire probe
Facility for calibrating pressure and temperature sensitive paints
Facility for calibrating surface mounted hot films
More on next slide
TPFL: The Turbomachinery Performance and Flow Research LaboratoryTexas A&M University
M. T. Schobeiri
TPFL Calibration of Five Hole-, Single- and and X-wire Probes
Turn Table for Probe Alignment
Probe Tip and Flow Alignment
TPFL Five- Hole Probe Calibration Facility
Turn Table with Two Stepper Motors and Controllers for Pitch and Yaw Traversing
Project DE-FOA-0000031October 2009
1.510.5
0-0.5-1-1.5
-2
Q1 -2-1.5
-1-0.5
00.5
11.5
Q2
-20
-20-15
-15-10
-10-5
-50
05
510
1015
1520
20
PIT
CH
PIT
CH
q1q2_pitch.txt, X , Y , Z Rank 1 Eqn 409 Chebyshev X,Y Bivariate Polynomial Order 10
r^2=0.99980762
1.510.5
0-0.5-1-1.5
-2
Q1 -2-1.5
-1-0.5
00.5
11.5
Q2
-20
-20-15
-15-10
-10-5
-50
05
510
1015
1520
20
YA
W YA
W
q1q2_yaw.txt, X , Y , Z Rank 1 Eqn 609 Sigmoid Series Bivariate Order 10
r^2=0.99989426
Calibration Precision Examples: Results, Station 4
TPFL: The Turbomachinery Performance and Flow Research LaboratoryTexas A&M University
M. T. Schobeiri
S1 S2 S3R1 R2 R3
Sta
tion
1
Sta
tion
2
Sta
tion
3
Sta
tion
4
Sta
tion
5
Sta
tion
6
Sta
tion
7
Flow in
2015
105
0-5-10-15
PITCH-20
-15
-10
-50
510
15
YAW
0.60.60.650.650.70.70.750.750.80.80.850.850.90.90.950.95111.051.05
Q3 Q
3
pitchyaw_q3.txt, X , Y , Z Rank 1 Eqn 409 Chebyshev X,Y Bivariate Polynomial Order 10
r^2=0.99982697
-20-15
-10-5
05
1015
PITCH
2015
105
0-5
-10-15
YAW
0.250.25
0.50.5
0.750.75
11
1.251.25
1.51.5
1.751.75
Q4
Q4
pitchyaw_q4.txt, X , Y , Z Rank 1 Eqn 409 Chebyshev X,Y Bivariate Polynomial Order 10
r^2=0.99992019
2015105
0-5-10-15
PITCH -20-15
-10-5
05
1015
YAW
-0.5
-0.50
00.5
0.5
1
1
1.5
1.5
Q5
Q5
pitchyaw_q5.txt, X , Y , Z Rank 1 Eqn 524 Fourier Series Bivariate Order 2x5
r^2=0.99995789
Project DE-FOA-0000031October 2009
10.75
0.50.25
0-0.25
Q1-0.75
-0.5
-0.25
00.25
Q2
-20 -20
-15 -15
-10 -10
-5 -5
0 0
5 5
10 10
15 15
20 20
YA
W
YA
W
q1q2_yaw.txt, X , Y , Z Rank 1 Eqn 409 Chebyshev X,Y Bivariate Polynomial Order 10
r^2=0.99975187
10.75
0.50.25
0-0.25
Q1-0.75
-0.5
-0.25
00.25
Q2
-20 -20
-15 -15
-10 -10
-5 -5
0 0
5 5
10 10
15 15
20 20
PIT
CH
PIT
CH
q1q2_pitch.txt, X , Y , Z Rank 1 Eqn 409 Chebyshev X,Y Bivariate Polynomial Order 10
r^2=0.99995848
Calibration Results, Station 5
TPFL: The Turbomachinery Performance and Flow Research LaboratoryTexas A&M University
M. T. Schobeiri
-20-15-10-5
051015
PITCH 2015
105
0-5
-10-15
YAW
0.925
0.9250.95
0.950.975
0.9751
11.025
1.0251.05
1.05
Q3
Q3
pitchyaw_q3.txt, X , Y , Z Rank 1 Eqn 409 Chebyshev X,Y Bivariate Polynomial Order 10
r^2=0.99767895
-20-15-10-5
051015
PITCH 2015
105
0-5
-10-15
YAW
0.2
0.20.3
0.30.4
0.40.5
0.50.6
0.60.70.70.80.80.90.911
Q4
Q4
pitchyaw_q4.txt, X , Y , Z Rank 1 Eqn 409 Chebyshev X,Y Bivariate Polynomial Order 10
r^2=0.99994729
2015
105
0-5
-10-15
PITCH
-20-15
-10-5
05
1015
YAW
0.5 0.5
0.6 0.6
0.7 0.7
0.8 0.8
0.9 0.9
1 1
1.1 1.1
Q5
Q5
pitchyaw_q5.txt, X , Y , Z Rank 1 Eqn 409 Chebyshev X,Y Bivariate Polynomial Order 10
r^2=0.99992738
S1 S2 S3R1 R2 R3
Sta
tion
1
Sta
tion
2
Sta
tion
3
Sta
tion
4
Sta
tion
5
Sta
tion
6
Sta
tion
7
Flow in
TPFL Calibration of PSP, TSP
Camera
Thermo-couple
Laser(488nm)
Heater
Vacuum Chamber
Vacuum Pump
Direction of air flow
Emitted light from TSPIlluminating laser light
PC
PSP coated test sample
Pressure Gage
Long pass filter(570 nm)
Setup for Pressure and Temperature Sensitive Paints PSP& TSP Calibration
TPFL: The Turbomachinery Performance and Flow Research LaboratoryTexas A&M University
M. T. Schobeiri
TPFL Calibration Facilities
Calibration of TSP
T(C)I/I
ref
30 40 50 60 700.4
0.5
0.6
0.7
0.8
0.9
1
h=3cmh=4cm20exph=4cm40exph=5cmh=5.5cmh=4.5cm5exp
Calibration of Pressure, Temperature Sensitive Paints, Results
TPFL: The Turbomachinery Performance and Flow Research LaboratoryTexas A&M University
M. T. Schobeiri
TSP-Application to Turbine Blade, Results
Comparison of (a) temperatures from TSP results with thermocouple results for, (b) heat transfer coefficient profiles from TSP with LCT
s/so
T(
C)
0 0.2 0.4 0.6 0.8 10
10
20
30
40
50
60
TSPThermocouple
Re=250,000, =3.18 (80 mm), Tu=1.9% (without grid)
s/so
h(W
/m2K
)
0 0.2 0.4 0.6 0.8 10
20
40
60
80
100
120
140
TSPLCT
Re=250,000, =3.18 (80 mm), Tu=1.9% (without grid)
TPFL: The Turbomachinery Performance and Flow Research LaboratoryTexas A&M University
M. T. Schobeiri
Calibration of Surface Mounted Hot Films
Surface mounted hot-film sensors attached to a low pressure Turbine blade.
Multi-Channel anemometer used Periodic unsteady inlet flow
condition. Anemometer: Samples were taken at a
rate of 10 kHz for each of the 50 revolutions of the wake generator.
The data were ensemble-averaged with respect to the rotational period of the wake generator.
Connection pins to anemometer-switch boardBlade fixture to test sectionHot film probe embedded in a foil, see next slide
TPFL: The Turbomachinery Performance and Flow Research LaboratoryTexas A&M University
M. T. Schobeiri
Calibration of Surface Mounted Hot Films
T(C)
R(
)
20 40 60 80 100 1208.5
9
9.5
10
10.5
11
11.5
12
12.5
13
Sensor 34Sensor 35Sensor 37Sensor 38
Calibration curve for hot film sensors
Hot Film SensorLength: 2.00mm
Blade with Surface mounted hot film foil installed in test section
TPFL: The Turbomachinery Performance and Flow Research LaboratoryTexas A&M University
M. T. Schobeiri