added mass coefficient


Added mass coefficient in buoyancy affects to the total weight of the system.

I have some questions.

1. The total weight in frequency results grid is used for calculate for both static and modal? or only modal analysis

2. If the weight is only for modal analysis, whereas the weight for both analysis are different, right?

and It is necessary to use added mass coefficient from inertia coefficient (in hydrodynamic dialog) -1

I ask this because I used added mass coef = 2.29 and my modal analysis, the total captured go up to 57%, But if I use Cm-1 for Ca the Ca equal to 0.88 and the total captured mass is about 9%.

So, I want to know my Ca = 2.29 can represent the realistic results or more conservative case, please suggest