JAPAN Bulk Carrier (JBC)
Hull data and conditions are as follows:
Main particulars |
Full scale |
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|---|---|---|---|---|
| DESIGNED FULL | BALLAST CONDITION*2 | |||
| Length between perpendiculars | \(L_{PP}\) (m) | 280.000 | same as on the left | |
| Length of waterline | \(L_{WL}\) (m) | 285.000 | 278.281 | |
| Maximum beam of waterline | \(B_{WL}\) (m) | 45.000 | same as on the left | |
| Depth | \(D\) (m) | 25.000 | same as on the left | |
| Draft(Ballast) | aft | \(T_A\) (m) | 16.500 | 10.015 |
| mid | \(T_M\) (m) | 16.500 | 8.615 | |
| fore | \(T_F\) (m) | 16.500 | 7.215 | |
| Displacement volume of a hull | \( \nabla \) (m3 ) | 178369.9 | 89185.9 | |
| Displacement volume of a rudder*2 | \( \nabla_R \) (m3 ) | 50.2 | 36.9 | |
| Wetted surface area of a hull(1) | \(S_{0\text{_w/oESD}}\) (m2 ) | 19556.1 | 14668.3 | |
| Wetted surface area of a hull with ESD(1) | \(S_{0\text{_withESD}}\) (m2 ) | 19633.9 | 14746.1 | |
| Wetted surface area of a rudder*2 | \(S_R\) (m2 ) | 164.3 | 127.9 | |
| Block coefficient (\(C_B\)) | \( \nabla / \left( L_{PP} B_{WL} T_M \right) \) | 0.8580 | 0.8216 | |
| Midship section coefficient (\(C_M\)) | 0.9981 | 0.9964 | ||
| \(L_{CB}\) (\(\%L_{PP}\)), fwd+ | 2.5475 | 1.5589 | ||
| Vertical Center of Gravity (from keel) | KG (m) | 13.29*1 | 12.20 | |
| Metacentric height | GM (m) | 5.30*1 | 10.91 | |
| Moment of Inertia | \(K_{xx}/B\) | 0.4*1 | same as on the left | |
| Moment of Inertia | \(K_{yy}/L_{PP}\), \(K_{zz}/L_{PP}\) | 0.25*1 | same as on the left | |
| Propeller center, long. location (from FP) | \(x/L_{pp}\) | 0.985714 | ----- | |
| Propeller center, vert. location (below WL) | \(-z/L_{pp}\) | -0.0404214 | ----- | |
| Propeller rotation direction (view from stern) | clockwise | same as on the left | ||
|
(1) : Bilge keel is not taken into account. *1 : These values are added at Thu. Jun. 15, 2017. *2 : These values are added at Fri. Dec. 20, 2017. Please note that these values(*1 and *2) were added after the workshop for reference and were not available in computations for the workshop. |
Service speed
| Design Full | Ballast Condition*2 | |
|---|---|---|
| U (knots) | 14.5 | 15.5 |
| Fn(Lpp) | 0.142 | 0.152 |
|
*2 : These values are added at Fri. Dec. 20, 2017 for reference and were not included in following requested conditions. |
Requested computations |
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|---|---|---|---|---|---|---|---|---|
Case # |
1.1 |
1.2 |
1.3 |
1.4 |
1.5 |
1.6 |
1.7 |
1.8 |
Loading Condition |
Design Full | |||||||
Wave |
Calm |
Calm |
Calm |
Calm |
Calm |
Calm |
Calm |
Calm |
Condition |
Towing |
Towing |
Towing |
Towing |
Self-prop (ship) |
Self-prop (ship) |
Self-prop (ship) |
Self-prop (ship) |
ESD |
W/O |
With |
W/O |
With |
W/O |
With |
W/O |
With |
Attitude |
FRzθ |
FRzθ |
FRzθ, FX0 |
FRzθ, FX0 |
FRzθ, FX0 |
FRzθ, FX0 |
FRzθ, FX0 |
FRzθ, FX0 |
Validation Variables |
Resistance, sink&trim |
Resistance, sink&trim |
Mean velocity, turbulence, wave pattern |
Mean velocity, turbulence |
Thrust, torque, prop fact, ship point |
Thrust, torque, prop fact, ship point |
Mean velocity, turbulence, ship point |
Mean velocity, turbulence, ship point |
EFD provider |
NMRI*/OU |
NMRI*/OU |
NMRI*/TUHH/OU |
NMRI*/TUHH/OU |
NMRI*/TUHH/OU |
NMRI*/TUHH/OU |
NMRI*/TUHH/OU |
NMRI*/TUHH/OU |
| "Mandatory" cases (denoted by *) |
| For JBC, the NMRI cases should be computed first. |
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Hull Attitude Definitions: |
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Hull Geometry (Appended) (Instruction about which iges files should be used in each case, is added on May 7th, 2015) Rudder Geometry(IGES) Uploaded on Dec. 20, 2017 for reference. Please note that the rudder was not installed in above requested conditions. Propeller Particulars(NMRI) Geometry above water surface and wind tunnel test results Uploaded on Jun. 16, 2022 for reference. Please note that the geometry was not available in the workshop. |