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Case 1.4a (NMRI)

Conditions:

References:

Not yet available.

Requested computations:

Table/Figure# Items EFD Data Submission Instruction
Data + Tecplot layout file Image Image files Sample + Tecplot layout file
1.4a-1 \(u, v, w\) contours and cross flow vectors at \(x/L_{PP} = 0.9625\) (SS 3/8) Refer to sample file for detail <Common>
Axis:
\(-0.035 < Y/L_{PP} < 0.035 \)
\(-0.065 < z/L_{PP} < 0.005 \)
Aspect ratio = 1:1
Frame line of SS 3/8 should be drawn.

<Contours>
Filename:
[Identifier]_S2-wDuct-woProp_U_1-4a.png (for \( u / U \) )
[Identifier]_S2-wDuct-woProp_V_1-4a.png (for \( v / U \) )
[Identifier]_S2-wDuct-woProp_W_1-4a.png (for \( w / U \) )
[Identifier]_S2-wDuct-woProp_OMGX_1-4a.png (for \( \displaystyle{\omega_x \cdot \frac{L_{PP}}{U} } \) )
Contour style: lines
Line Style: solid positive, dashed negative
Contour intervals:
\( \Delta (u/U) = 0.1, \Delta (v/U) = 0.1, \Delta (w/U) = 0.1 \) and \( \Delta \omega_x \cdot \displaystyle{\frac{L_{PP}}{U}} =20 \)

<Cross flow vectors>
Filename:
[Identifier]_S2-wDuct-woProp_VW_1-4a.png
Vector length: \(0.004\) [Magnitude/Grid Units]
Length of Reference vector: 1.0 		Case1.4a_SPIV.zip
Contours of \( \omega_x \) is not included.(Oct. 08, 2015)
1.4a-2 \(u, v, w\) contours and cross flow vectors at \(x/L_{PP} = 0.9843\)
(between duct and propeller, 110[mm] ahead from AP)		 Refer to sample file for detail <Common>
Axis and Aspect ratio are same as Case1.4a-1

<Contours>
Filename:
[Identifier]_S4-wDuct-woProp_U_1-4a.png (for \( u / U \) )
[Identifier]_S4-wDuct-woProp_V_1-4a.png (for \( v / U \) )
[Identifier]_S4-wDuct-woProp_W_1-4a.png (for \( w / U \) )
[Identifier]_S4-wDuct-woProp_OMGX_1-4a.png (for \( \displaystyle{\omega_x \cdot \frac{L_{PP}}{U} } \) )
The others are same as Case1.4a-1

<Cross flow vectors>
Filename:
[Identifier]_S4-wDuct-woProp_VW_1-4a.png
The others are same as Case1.4a-1
1.4a-3 \(u, v, w\) contours and cross flow vectors at \(x/L_{PP} = 1.0000\) (AP) Refer to sample file for detail <Common>
Axis and Aspect ratio are same as Case1.4a-1

<Contours>
Filename:
[Identifier]_S7-wDuct-woProp_U_1-4a.png (for \( u / U \) )
[Identifier]_S7-wDuct-woProp_V_1-4a.png (for \( v / U \) )
[Identifier]_S7-wDuct-woProp_W_1-4a.png (for \( w / U \) )
[Identifier]_S7-wDuct-woProp_OMGX_1-4a.png (for \( \displaystyle{\omega_x \cdot \frac{L_{PP}}{U} } \) )
The others are same as Case1.4a-1

<Cross flow vectors>
Filename:
[Identifier]_S7-wDuct-woProp_VW_1-4a.png
The others are same as Case1.4a-1

Note: a positive (+) sinkage value is defined upwards and a positive (+) trim value is defined bow up.

Submission Instructions:

All quantities are non-dimensionalized by denstiy of water (\(\rho\)), ship speed (\(U\)), and length between parpendiculars (\(L_{PP}\)): \begin{align*} F_r = \frac{U}{\sqrt{g \cdot L_{PP}}}, \quad R_e = \frac{U \cdot L_{PP}}{\nu} \end{align*} where \(g\) is the gravitational acceleration and \(\nu\) is the kinematic viscosity.