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The dynamic viscosity in equa‐<br />
tion (2) can be presented as shown below:<br />
(6)<br />
w<strong>here</strong> ν is the kinematic viscosity.<br />
128 M�<br />
�p<br />
�<br />
�d<br />
�p<br />
d<br />
4<br />
l�<br />
Before the simulation is<br />
conducted, the kinematic viscosity needs <strong>to</strong> be<br />
determined and this is done by utilising equation<br />
(7) as shown below:<br />
<strong>MIMET</strong> Technical Bulletin Volume 1 (2) 2010<br />
(7)<br />
Note that is the pressure drop along a segment, and<br />
l is the segment length.<br />
By means of measured steady state pressure values,<br />
the calculated kinematic viscosity ν is identified as<br />
0.00011m 2 /s.<br />
For solving the partial differential equations (1) and<br />
(2), the rational numerical discrete method is used.<br />
Here, upwind method is used <strong>to</strong> discretize the<br />
| MARINE FRONTIER @ <strong>UniKL</strong><br />
110