Sent: Wed Apr 08 19:39:39 2009
Subject: Re: [Libmesh-users] Under Integration
I guess I should explain what I'm trying to do. =)
I have an 8 variable system of which one variable is pressure. When the
pressure variable is added, I get a very poorly conditioned matrix. A
suggestion that was
On Wed, Apr 8, 2009 at 6:27 PM, David Knezevic wrote:
> You could do:
>
> AutoPtr qrule =
> fe_type.default_quadrature_rule(dim,extra_quad_order);
>
> where extra_quad_order is negative.
If you want to achieve "mass lumping" there are also Trapezoidal
(QTrap) rules available. There's also Simpso
gt;
> - Original Message -
> From: John Peterson
> To: David Knezevic
> Cc: libmesh-users
> Sent: Wed Apr 08 18:49:58 2009
> Subject: Re: [Libmesh-users] Under Integration
>
> On Wed, Apr 8, 2009 at 6:27 PM, David Knezevic wrote:
> > You could do:
> >
mass matrix?
- Original Message -
From: John Peterson
To: David Knezevic
Cc: libmesh-users
Sent: Wed Apr 08 18:49:58 2009
Subject: Re: [Libmesh-users] Under Integration
On Wed, Apr 8, 2009 at 6:27 PM, David Knezevic wrote:
> You could do:
>
> Auto
You could do:
AutoPtr qrule =
fe_type.default_quadrature_rule(dim,extra_quad_order);
where extra_quad_order is negative.
- Dave
Andrea Hawkins wrote:
> Hello-
>
> I was wondering if there is an easy implementation set up in libMesh for
> under-integration.
>
> Thanks,
> Andrea
> --
Hello-
I was wondering if there is an easy implementation set up in libMesh for
under-integration.
Thanks,
Andrea
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