Propeller Geometry)

3. Propeller Geometry The principal geometric parameters of the design propellers and the propeller drawings are presented in tables and figures as follows: Propeller

Design (KP947)

Principal Geometry Parameters

Table 4

Sectional Geometry of the Design Propeller (unit: cm)

Table 5

Offset Data of Section Profiles of the Design Propeller

Table 6

Propeller Drawing

Fig. 3

Table 4 Principal Geometry of the Design Propellers Model Propeller Number

Design (KP947)

Scale Ratio, l

21.6

Full-Scale Propeller Diameter, Ds

5.4 m

Model Propeller Diameter, Dm Hub-Diameter Ratio, d H D Number of Blades, Z

250.0 mm 0.180 4

Mean Pitch-Diameter Ratio, (P D )mean

0.6456

Expanded Area Ratio, AE AO

0.5314

Chord-Diameter Ratio at 0.7R, C0.7 R D

0.3098

Skew Angle Extent, q S

22.64°

Rake-Diameter Ratio at Tip Blade Section Type

0° NACA66

Propeller Rotation Direction

R.H.

Material of Model Propeller

Aluminum

Maritime and Ocean Engineering Research Institute, KORDI

Table 5: Sectional Geometry of the Design Propeller (unit: cm)

r/R

Pitch

Rake

Skew (deg)

Chord

Camber

Thickness

0.180

321.07

0.0

-1.578

98.33

2.664

23.245

0.250

329.89

0.0

-2.830

108.87

3.180

20.284

0.300

335.76

0.0

-3.522

116.36

3.432

18.400

0.400

346.37

0.0

-4.397

130.20

3.612

15.120

0.500

354.45

0.0

-4.285

144.23

3.384

12.270

0.600

358.82

0.0

-2.781

157.33

3.081

9.800

0.700

358.45

0.0

0.329

167.31

2.843

7.520

0.800

353.59

0.0

4.746

164.98

2.475

5.477

0.900

344.11

0.0

10.457

138.62

1.663

3.549

0.950

337.80

0.0

13.911

109.38

0.993

2.595

0.975

334.27

0.0

15.883

83.47

0.561

2.124

1.000

330.35

0.0

18.238

0.01

0.000

1.657

Maritime and Ocean Engineering Research Institute, KORDI

Table 6: Offset Data of Section Profiles of the Design Propeller ORDER OF OFFSETS (unit: mm) (1) DISTANCE FROM LE (2) SUCTION SIDE (3) CAMBER LINE (4) PRESSURE SIDE. x/C(%)

1.0

2.5

5.0

10.0

20.0

30.0

40.0

45.0

50.0

60.0

70.0

80.0

90.0

95.0

97.5

99.0

100.0

9.83

24.58

49.17

98.33

196.66

294.99

393.32

442.49

491.65

589.98

688.31

786.64

884.97

934.14

958.72

973.47

983.30

R/RO

28.14

41.70

58.11

81.60

112.72

131.26

140.82

142.55

141.97

134.41

118.10

92.51

54.94

32.24

20.48

13.13

8.04

0.190

2.01

4.23

7.22

11.94

18.63

23.00

25.61

26.32

26.64

26.07

23.69

18.72

9.55

4.56

2.19

0.82

0.00

-15.92

-27.09

-38.49

-53.96

-73.47

-84.43

-89.43

-89.91

-88.71

-81.93

-69.57

-52.38

-32.86

-21.22

-14.84

-10.59

-7.52

10.89

27.22

54.44

108.87

217.74

326.61

435.48

489.92

544.35

653.22

762.09

870.96

979.83 1034.27 1061.48 1077.81 1088.70

R/RO

24.74

37.38

52.73

74.83

104.24

121.88

131.10

132.85

132.44

125.64

110.60

86.59

50.84

29.48

18.50

11.67

6.98

0.250

2.40

5.04

8.62

14.25

22.24

27.46

30.57

31.42

31.80

31.12

28.27

22.35

11.40

5.45

2.62

0.98

0.00

-13.83

-22.73

-31.65

-43.54

-58.28

-66.35

-69.83

-70.01

-68.86

-63.15

-53.19

-39.91

-25.83

-17.19

-12.34

-9.03

-6.60

11.64

29.09

58.18

116.36

232.72

349.08

465.44

523.62

581.80

698.16

814.52

930.88 1047.24 1105.42 1134.51 1151.96 1163.60

R/RO

22.48

34.48

49.08

70.16

98.30

115.25

124.18

125.92

125.61

119.31

105.14

82.28

47.94

27.59

17.17

10.72

6.31

0.300

2.59

5.44

9.30

15.38

24.00

29.64

33.00

33.91

34.32

33.58

30.51

24.12

12.31

5.88

2.82

1.05

0.00

-12.53

-20.05

-27.49

-37.23

-49.15

-55.50

-58.09

-58.10

-56.99

-51.94

-43.44

-32.50

-21.61

-14.74

-10.81

-8.05

-6.01

13.02

32.55

65.10

130.20

260.40

390.60

520.80

585.90

651.00

781.20

911.40 1041.60 1171.80 1236.90 1269.45 1288.98 1302.00

R/RO

18.46

29.11

42.08

60.91

86.16

101.48

109.64

111.29

111.14

105.76

93.35

72.97

41.98

23.87

14.65

8.99

5.14

0.400

2.73

5.73

9.79

16.19

25.26

31.19

34.73

35.69

36.12

35.34

32.11

25.38

12.95

6.19

2.97

1.11

0.00

-10.27

-15.64

-20.80

-27.31

-34.99

-38.83

-40.13

-39.92

-38.91

-34.96

-28.74

-21.33

-15.11

-10.87

-8.31

-6.43

-4.97

14.42

36.06

72.11

144.23

288.46

432.69

576.92

649.03

721.15

865.38 1009.61 1153.84 1298.07 1370.18 1406.24 1427.88 1442.30

R/RO

14.86

23.98

35.07

51.24

72.96

86.21

93.32

94.79

94.72

90.24

79.71

62.23

35.50

20.03

12.18

7.38

4.14

0.500

2.55

5.37

9.17

15.17

23.66

29.22

32.53

33.43

33.84

33.11

30.09

23.78

12.14

5.80

2.79

1.04

0.00

-8.37

-12.24

-15.87

-20.28

-25.31

-27.63

-28.22

-27.92

-27.05

-23.96

-19.35

-14.23

-10.74

-8.12

-6.42

-5.11

-4.05

Maritime and Ocean Engineering Research Institute, KORDI

x/C(%) R/RO 0.600

R/RO 0.700

R/RO 0.800

R/RO 0.900

R/RO 0.950

R/RO 0.975

R/RO 1.000

1.0 15.73 11.91 2.33 -6.58 16.73 9.39 2.15 -4.77 16.50 7.10 1.87 -3.20 13.86 4.62 1.26 -2.04 10.94 3.20 0.75 -1.67 8.35 2.42 0.42 -1.56 0.00 1.55 0.00 -1.55

2.5 39.33 19.57 4.89 -9.30 41.83 15.69 4.51 -6.43 41.24 12.03 3.93 -4.07 34.65 7.87 2.64 -2.55 27.34 5.39 1.57 -2.22 20.87 4.01 0.89 -2.22 0.00 2.43 0.00 -2.43

5.0 78.67 28.87 8.35 -11.75 83.65 23.38 7.71 -7.77 82.49 18.09 6.71 -4.58 69.31 11.87 4.51 -2.81 54.69 8.07 2.69 -2.66 41.74 5.92 1.52 -2.86 0.00 3.42 0.00 -3.42

10.0 157.33 42.50 13.81 -14.58 167.31 34.71 12.74 -9.08 164.98 27.07 11.09 -4.81 138.62 17.79 7.45 -2.86 109.38 12.00 4.45 -3.09 83.47 8.69 2.51 -3.66 0.01 4.82 0.00 -4.82

20.0 314.66 60.86 21.55 -17.60 334.62 50.02 19.88 -10.18 329.96 39.24 17.31 -4.59 277.24 25.84 11.63 -2.56 218.76 17.33 6.94 -3.43 166.94 12.42 3.92 -4.57 0.02 6.63 0.00 -6.63

30.0 471.99 72.09 26.60 -18.82 501.93 59.44 24.55 -10.31 494.94 46.78 21.37 -4.02 415.86 30.82 14.36 -2.10 328.14 20.61 8.57 -3.46 250.41 14.69 4.84 -5.00 0.03 7.68 0.00 -7.68

40.0 629.32 78.16 29.62 -18.91 669.24 64.58 27.33 -9.91 659.92 50.92 23.79 -3.33 554.48 33.56 15.99 -1.59 437.52 22.40 9.55 -3.30 333.88 15.91 5.39 -5.12 0.04 8.21 0.00 -8.21

Maritime and Ocean Engineering Research Institute, KORDI

45.0 707.99 79.44 30.44 -18.56 752.89 65.69 28.09 -9.51 742.41 51.84 24.45 -2.93 623.79 34.18 16.43 -1.31 492.21 22.79 9.81 -3.16 375.61 16.16 5.54 -5.08 0.04 8.29 0.00 -8.29

50.0 60.0 70.0 80.0 786.65 943.98 1101.31 1258.64 79.44 75.76 66.99 52.28 30.81 30.15 27.39 21.65 -17.82 -15.44 -12.11 -8.76 836.55 1003.86 1171.17 1338.48 65.74 62.82 55.65 43.44 28.43 27.82 25.28 19.98 -8.88 -7.17 -5.05 -3.38 824.90 989.88 1154.86 1319.84 51.99 49.89 44.43 34.90 24.75 24.22 22.01 17.39 -2.49 -1.45 -0.40 -0.06 693.10 831.72 970.34 1108.96 34.36 33.15 29.71 23.58 16.63 16.27 14.79 11.69 -1.10 -0.60 -0.13 -0.19 546.90 656.28 765.66 875.04 22.96 22.24 20.05 16.10 9.93 9.72 8.83 6.98 -3.10 -2.80 -2.39 -2.13 417.35 500.82 584.29 667.76 16.31 15.86 14.38 11.70 5.61 5.49 4.99 3.94 -5.09 -4.88 -4.40 -3.81 0.05 0.06 0.07 0.08 8.40 8.24 7.57 6.40 0.00 0.00 0.00 0.00 -8.40 -8.24 -7.57 -6.40

90.0 1415.97 29.61 11.05 -7.28 1505.79 24.40 10.19 -3.89 1484.82 19.76 8.88 -1.95 1247.58 13.73 5.96 -1.78 984.42 9.78 3.56 -2.65 751.23 7.47 2.01 -3.44 0.09 4.71 0.00 -4.71

95.0 1494.64 16.59 5.28 -5.87 1589.44 13.52 4.87 -3.70 1567.31 11.15 4.24 -2.63 1316.89 8.12 2.85 -2.40 1039.11 6.17 1.70 -2.75 792.97 5.03 0.96 -3.10 0.09 3.67 0.00 -3.67

97.5 1533.97 10.00 2.54 -4.85 1631.27 8.05 2.34 -3.34 1608.55 6.84 2.04 -2.75 1351.55 5.32 1.37 -2.58 1066.45 4.35 0.82 -2.71 813.83 3.78 0.46 -2.86 0.10 3.12 0.00 -3.12

99.0 1557.57 5.99 0.95 -3.98 1656.37 4.74 0.87 -2.91 1633.30 4.24 0.76 -2.66 1372.34 3.63 0.51 -2.57 1082.86 3.24 0.30 -2.61 826.35 3.02 0.17 -2.66 0.10 2.76 0.00 -2.76

100.0 1573.30 3.29 0.00 -3.25 1673.10 2.52 0.00 -2.50 1649.80 2.51 0.00 -2.50 1386.20 2.51 0.00 -2.50 1093.80 2.51 0.00 -2.50 834.70 2.51 0.00 -2.50 0.10 2.50 0.00 -2.50

20.000

46.296

Maritime and Ocean Engineering Research Institute, KORDI

5400.0

0.6456

0.5314

0.1800

4

NACA66

Diameter(mm)

(P/D)mean

Ae/Ao

Hub Ratio

No. of Blade

Section

40.000

Propeller Principal Particulars

(T/D) 0.7R

(F0/C) 0.7R

(C/D) 0.7R

Eff. skew(Deg)

(Rake/D) Tip

Model Diam(mm)

0.0139

0.0170

0.3098

22.64

0.0000

250.000

Scale Ratio

21.6000

kp947

1.80556

FPP

Korea Ocean Research & Development Institute, KRISO

Prop. Number

Comment

Drawing Scale

Prop. Type

0.622 0.611 0.595

0.300 0.250 0.180

43.704

0.656 0.641

0.400

0.664

0.600

Figure 3

0.500

0.664

0.700

P/D

0.655

EXPANDED BLADE

0.800

PROJECTED BLADE 0.612 0.619 0.626 0.637

SIDE ELEVATION

1.000 0.975 0.950 0.900

r/R

MOERI SAMHO DWT 35,000 ton Bulk Carrier 07-July-2010

Drawing of KP947 Propeller

F-3