is it possible to build a vessel that has got a conical bottom portion ,cylindrical shell at the small end of the cone and an ellipsoidal head at the other end of the cylindical shell all are inside the vessel skirt. i tried this one but was not able to solve the problem.does anyone have a solution?

Ranjit,

Start with the bottom ellipsoidal head; add a cylinder and a conical transition. Then add a skirt, at this point the program will ask you if this skirt separates 2 vessels, click on "ON". A skirt will be added but it would be the same diameters as the conical bottom portion. It overlaps the cone in the 3d graphics, but you can tell by element description on the left. So, change the skirt diameter at the base and the graphics become clearer.

This should work. If you still have questions let us know.