Rotordynamic Forces Due to Turbine Tip Leakage (Part1-Blade Scale Effects)
TIP LEAKAGE FLOW SIMULATION IN AFTRF BLADE PASSAGES
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Transcript of TIP LEAKAGE FLOW SIMULATION IN AFTRF BLADE PASSAGES
![Page 1: TIP LEAKAGE FLOW SIMULATION IN AFTRF BLADE PASSAGES](https://reader030.fdocuments.in/reader030/viewer/2022032612/56813381550346895d9a8cf1/html5/thumbnails/1.jpg)
TIP LEAKAGE FLOW SIMULATION
IN AFTRF BLADE PASSAGES
Levent Kavurmacioglu, Debashis Dey & Cengiz Camci
Department of Aerospace EngineeringTurbomachinery Heat Transfer Laboratory
The Pennsylvania State UniversityUniversity Park, PA 16802
[email protected]://www.personal.psu.edu/cxc11/vki.html
![Page 2: TIP LEAKAGE FLOW SIMULATION IN AFTRF BLADE PASSAGES](https://reader030.fdocuments.in/reader030/viewer/2022032612/56813381550346895d9a8cf1/html5/thumbnails/2.jpg)
Figure 1, 3D computational grid for the AFTRF turbine rotor flow simulations
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Figure 2, Grid structure near the baseline tip configuration
130x65x88105x51x74
75x65x2650x51x26
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GOVERNING EQUATIONS
Ui,i 0
U j
Ui
x j
p
x i
2U i
x jx j
R i j
x j
Rij uiu j 23
k ij tUi
x j
Uj
x i
2/iiuuk
t C k 2
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U i
k
x i
t
U j
x i
U i
x j
U j
x i
x i
( t k)k
x i
U i
x i
C1kt
U j
x i
Ui
x j
U j
x i
C22
k
x i
(t )x i
Up C1 4 k p
1 2
w 1
Ln Ey p*
GOVERNING EQUATIONS
![Page 6: TIP LEAKAGE FLOW SIMULATION IN AFTRF BLADE PASSAGES](https://reader030.fdocuments.in/reader030/viewer/2022032612/56813381550346895d9a8cf1/html5/thumbnails/6.jpg)
Figure 3 Tip leakage visualization planes(cross-stream direction & blade height)
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Figure 4, Turbine rotor inlet flow conditions
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•
Figure 6, Velocity vectors at various planes in the tip gap (BASELINE TIP - full cover)
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Figure 7 , Leakage Flow Patterns in the tip gap space inside cross stream planes(BASELINE TIP, full cover)
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Figure 7 , Leakage Flow Patterns in the tip gap space inside cross stream planes(BASELINE TIP, full cover)
![Page 13: TIP LEAKAGE FLOW SIMULATION IN AFTRF BLADE PASSAGES](https://reader030.fdocuments.in/reader030/viewer/2022032612/56813381550346895d9a8cf1/html5/thumbnails/13.jpg)
Figure 8, Leakage flow patterns in planes parallel to the tip surface,(BASELINE TIP, full cover)
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Figure 8, Leakage flow patterns in planes parallel to the tip surface,(BASELINE TIP, full cover)
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Figure 8, Leakage flow patterns in planes parallel to the tip
surface,(BASELINE TIP,
full cover)
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TIP LEAKAGE FLOW SIMULATION
IN AFTRF BLADE PASSAGES
Levent Kavurmacioglu, Debashis Dey & Cengiz Camci
Department of Aerospace EngineeringTurbomachinery Heat Transfer Laboratory
The Pennsylvania State UniversityUniversity Park, PA 16802
[email protected]://www.personal.psu.edu/cxc11/vki.html