Creating a cylinder - revolution or extrusion?

[bmeguy]

Hello, I am using Abaqus as part of a project for modeling bone fluid flow. To begin with, I am creating a cylinder that represents an osteon. I have two questions regarding this.

1) Is there a reason to create a rectangle and use revolutions as oppopsed to creating a circle and using extrusion?

2) (this partially answers the above question) When I do use a rectangle and revolution, I end up with a line on the cylinder, parallel to its axis on its exterior. Is there any way to remove this line?

 

[gurmeet2003]

bmeguy,

Both the methods are equivalent. Why do you want to remove the line. The line represents an edge.

Gurmeet

 

[corus]

Use the line to partition the cylinder into 180 degrees, and then 90 degrees segments. You'll get a better looking mesh then.

corus

 

[bmeguy]

Thanks for the replies, guys. Gurmeet, I wanted to remove the line because I don't want an edge. At least I don't see why I would want one.

 

[Nileo2005]

You can remove it in the ODB viewer, which is the only place I'd think you could possibly want it gone. Having it is a good thing, because it is another location for the global seeder to, um, well... seed, addind a lttle bit more order to the meshing process. Partioning the cylender into quarters like corus said will help clean it up more, but one is still better than zero.