Search Results

Showing results 1 to 7 of 7
Search took 0.00 seconds. Search: Posts Made By: fredo490

Forum: OpenFOAM Running, Solving & CFD

May 23, 2013, 01:39

Replies: 14

no solution in second order schemes

Views: 3,611

Posted By fredo490

I have no idea... I don't know this solver. Part...

I have no idea... I don't know this solver. Part of it is hard coded. At first look Iwould ssay that it is second order with first order turbulence model.

Forum: OpenFOAM Running, Solving & CFD

May 22, 2013, 12:57

Replies: 14

no solution in second order schemes

Views: 3,611

Posted By fredo490

I don't know, you need to try... As K is the...

I don't know, you need to try... As K is the kinetic energy, so it depends of U, I would say that the same second order scheme as U can be applied (linearupwind). But if your case diverge or over...

Forum: OpenFOAM Running, Solving & CFD

May 22, 2013, 12:40

Replies: 14

no solution in second order schemes

Views: 3,611

Posted By fredo490

As I said rhoCentralFoam is a little special......

As I said rhoCentralFoam is a little special... I'm not familiar with the code.

Everybody can choose what is a second order problem. There is no official definition. Ideally ALL schemes must be...

Forum: OpenFOAM Running, Solving & CFD

May 22, 2013, 11:44

Replies: 14

no solution in second order schemes

Views: 3,611

Posted By fredo490

The difference is in how the scheme correct the...

The difference is in how the scheme correct the value. The linearUpwind uses a "simple" correction that is not very accurate for some meshes (I would say some non-orthogonal meshes). The...

Forum: OpenFOAM Running, Solving & CFD

May 22, 2013, 11:07

Replies: 14

no solution in second order schemes

Views: 3,611

Posted By fredo490

1) see page 10 of this pdf :...

1) see page 10 of this pdf : http://www.bakker.org/dartmouth06/engs150/04-clsfn.pdf

2) a second order scheme is highly recommended in all simulations. Many phenomenon cannot "appear" with a first...

Forum: OpenFOAM Running, Solving & CFD

April 16, 2013, 12:01

Replies: 14

no solution in second order schemes

Views: 3,611

Posted By fredo490

Ps. Take a look at the cases I've sent on my...

Ps. Take a look at the cases I've sent on my post:
http://www.cfd-online.com/Forums/openfoam-solving/114556-manual-limiter-velocity-doesnt-work-3.html

I put my cases with all the schemes. You can...

Forum: OpenFOAM Running, Solving & CFD

April 16, 2013, 11:55

Replies: 14

no solution in second order schemes

Views: 3,611

Posted By fredo490

If you start with a upwind (first order), you can...

If you start with a upwind (first order), you can use a linearUpwind (second order). In some cases a linearUpwindV (second order) can be more robust because it is a pure upwind second order.

To...

Showing results 1 to 7 of 7

Forum Jump

All times are GMT -4. The time now is 23:02.