meshing catamaran
 

Hi all, I'm a newbie and have just learned ansys for about 1 months. Currently I'm doing my final assigment about catamaran but I've got some problems meshing it. I don't know what mesh type, size and any other setup I supposed to used (I tried tetra with robust method and max element size 0.1 with edge criterion 0.01). this is the dimension of my catamaran: LWL : 14.5 m B : 1.855 m D : 0.65 m CB : 0.382 Can anybody give me any suggestions? Thx

picture
 

this is the picture of my mesh