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-   -   Need Help-Calculation of ship trimming moments (http://www.cfd-online.com/Forums/fluent/118048-need-help-calculation-ship-trimming-moments.html)

Anam May 20, 2013 07:40

Need Help-Calculation of ship trimming moments
 
4 Attachment(s)
Dear all:
I want to calculate the trimming moments of wigley hull using ANSYS 13 Fluent. I will use these trimming moments for the calculation of trim by equating trim moment to the hydrostatic moment.
I have calculated total resistance of hull in fixed condition. In my case the coordinate axis lies at Longitudinal center of flotation, With x-axis points to the stern of ship, the y-axis points to starboard, and the z-axis is vertically upwards (Shown in attached file: Position of Co-ordinate Axis).
In post processor, I also calculated the trimming moments acting over the hull. These moment values and method I used to calculate these moments are attached.




I need help with following problems
  • I am not sure if the present position of coordinate axis is right, for an analysis in which trimming moments have to be calculated?
  • I am not sure, if the way I calculated the trimming moments is right.
Please help me to solve this problem. I really, really need some help at this point.


Waiting for a kind response


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