## [Libmesh-users] 2D elements in 3-space?

 [Libmesh-users] 2D elements in 3-space? From: David Knezevic - 2009-06-21 17:25:21 ```Hi all, I recall there being some posts about this recently, but I can't find them in the archive: What is the current support (if any) for solving equations on a manifold embedded in a higher dimensional space, e.g. the surface of a sphere? Thanks, Dave ```

 [Libmesh-users] 2D elements in 3-space? From: David Knezevic - 2009-06-21 17:25:21 ```Hi all, I recall there being some posts about this recently, but I can't find them in the archive: What is the current support (if any) for solving equations on a manifold embedded in a higher dimensional space, e.g. the surface of a sphere? Thanks, Dave ```
 Re: [Libmesh-users] 2D elements in 3-space? From: Roy Stogner - 2009-06-21 18:39:32 ```On Sun, 21 Jun 2009, David Knezevic wrote: > I recall there being some posts about this recently, but I can't find > them in the archive: What is the current support (if any) for solving > equations on a manifold embedded in a higher dimensional space, e.g. the > surface of a sphere? IIRC we can do 2-manifolds in 3-space, but we can't do non-manifolds (no three surfaces meeting at a line) and we can't do mixed dimension (no quads and hexes in the same mesh), because of the assumptions we make about element neighbors. --- Roy ```
 Re: [Libmesh-users] 2D elements in 3-space? From: David Knezevic - 2009-06-21 19:42:23 ```OK, sounds good, I'll have a closer look. Thanks! - Dave Roy Stogner wrote: > > On Sun, 21 Jun 2009, David Knezevic wrote: > >> I recall there being some posts about this recently, but I can't find >> them in the archive: What is the current support (if any) for solving >> equations on a manifold embedded in a higher dimensional space, e.g. the >> surface of a sphere? > > IIRC we can do 2-manifolds in 3-space, but we can't do non-manifolds > (no three surfaces meeting at a line) and we can't do mixed dimension > (no quads and hexes in the same mesh), because of the assumptions we > make about element neighbors. > --- > Roy ```