Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure...
Transcript of Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure...
![Page 1: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/1.jpg)
The Fourth International Symposium on Marine Propulsors 2015 – smp‘15
Propeller Characteristics in Oblique Flow
Case 1
Ulf Barkmann
Potsdam Model Basin (SVA)
![Page 2: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/2.jpg)
smp‘15 2
Open water test
PPTC
• Tests were conducted in
the towing tank of the SVA
• Dynamometer mounted
behind the propeller with
an inclination of 12°
![Page 3: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/3.jpg)
smp‘15 3 PPTC
• The open water tests were carried out
according to the ITTC recommended
procedure 7.5-02-03-02.1 (2008) :
• Streamlined cap longer then 1.5 Df
• Cone with 20° opening angle
• Immersion of the propeller
center: 1.5 D
• Prior tests with cap and hub without
blades
• Hub of the same weight and shape
as the propeller hub with blades X
Y
Z
Open water test
![Page 4: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/4.jpg)
smp‘15 4
Open water characteristics - EFD
PPTC
![Page 5: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/5.jpg)
smp‘15 5
Reynolds number effects - EFD
PPTC
![Page 6: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/6.jpg)
smp‘15 6
Error estimation - EFD
PPTC
![Page 7: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/7.jpg)
smp‘15 7
Propeller accuracy
PPTC
Ongoing R&D project „Quality“
The influence of the production quality on the open water
characteristics shall be investigated
• Surface of propellers
are measured with a
photogrammetric
system
• Grids with 300.000
measurement points
were compared to
CAD
• Accuracy of 0.03 mm
![Page 8: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/8.jpg)
smp‘15 8
Propeller accuracy
PPTC
Pressure side Suction side
1
2
3
5
1
2
3
4
40µm -40µm 100µm -100µm
![Page 9: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/9.jpg)
smp‘15 9
Propeller accuracy
PPTC
Tolerance class Percentage
of area [%]
150 µm 4.8
100 µm 8.1
50 µm 58.9
-50 µm 26.8
-100 µm 0.6
-150 µm 0.9
0
10
20
30
40
50
60
70
-150 -100 -50 50 100 150
Pro
pel
ler
area
[%
]
Tolerance class [µm]
Median: 29.4 µm
Worst case estimation: 100 µm 1% KT, 10KQ
Propeller corresponds very well to the ITTC procedure
7.5-01-02-01 (2008)
![Page 10: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/10.jpg)
smp‘15 10 PPTC
Error estimation II - EFD
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7
KT
x, 1
0K
Q, η
O [
-]
J [-]
PPTC - smp'15 Workshop
open water characteristics
measurement campaigns
1th quartile with propeller accuracy
3rd quartile with propeller accuracy
η0
KTX
10KQ
![Page 11: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/11.jpg)
smp‘15 11
Participants
PPTC
11 groups, 11 solvers, 16 calculations
Group Solver Acronym
ACCUSIM ANSYS-CFX ACCUSIM-CFX
OpenFOAM ACCUSIM-OF
CNRS-ECN ISIS CNRS-ISIS
CRADLE SCTetra steady CRADLE-SCTetra-st.
SCTetra unsteady CRADLE-SCTetra-unst.
CSSRC ANSYS-Fluent CSSRC-Fluent
ROTAM ANSYS-Fluent ROTAM-Fluent
MARIN ReFresco MARIN-ReFresco
TU Hamburg Harburg ANSYS-CFX TUHH-CFX
OpenFOAM TUHH-OF
panMARE TUHH-panMARE
University of Duisburg, Essen ISIS UDE-ISIS
University of Genoa BEM UniGenoa-BEM
StarCCM+ UniGenoa-StarCCM
University of Austin PROPCAV UTAustin-PROPCAV
VTT FinFlo VTT-FinFlo
![Page 12: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/12.jpg)
smp‘15 12
ACCUSIM CFX
PPTC
![Page 13: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/13.jpg)
smp‘15 13
ACCUSIM OpenFoam
PPTC
![Page 14: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/14.jpg)
smp‘15 14
CNRS ISIS (update)
PPTC
![Page 15: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/15.jpg)
smp‘15 15
CRADLE SCTetra (steady)
PPTC
![Page 16: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/16.jpg)
smp‘15 16
CRADLE SCTetra (unsteady)
PPTC
![Page 17: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/17.jpg)
smp‘15 17
CSSRC Fluent
PPTC
![Page 18: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/18.jpg)
smp‘15 18
MARIN ReFresco
PPTC
![Page 19: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/19.jpg)
smp‘15 19
ROTAM Fluent
PPTC
![Page 20: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/20.jpg)
smp‘15 20
TUHH CFX
PPTC
![Page 21: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/21.jpg)
smp‘15 21
TUHH OpenFoam
PPTC
![Page 22: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/22.jpg)
smp‘15 22
TUHH panMARE
PPTC
![Page 23: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/23.jpg)
smp‘15 23
University of Duisburg, Essen ISIS
PPTC
![Page 24: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/24.jpg)
smp‘15 24
University of Genoa BEM
PPTC
![Page 25: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/25.jpg)
smp‘15 25
University of Genoa Star-CCM+
PPTC
![Page 26: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/26.jpg)
smp‘15 26
University of Austin PROPCAV
PPTC
![Page 27: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/27.jpg)
smp‘15 27
VTT FinFlo
PPTC
![Page 28: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/28.jpg)
smp‘15 28
All characteristics - CFD
PPTC
minimum 1th quartile median 3rd quartile maximum
ηO 10KQ KTx
![Page 29: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/29.jpg)
smp‘15 29
CFD vs. EFD
PPTC
![Page 30: Propeller Characteristics in Oblique Flow Case 1 · according to the ITTC recommended procedure 7.5-02-03-02.1 (2008) : •Streamlined cap longer then 1.5 D f •Cone with 20° opening](https://reader030.fdocuments.us/reader030/viewer/2022040602/5e9861e842a89b61304bdb5a/html5/thumbnails/30.jpg)
smp‘15 30
Potsdam Propeller Test Case
PPTC
Thank You!