numeric schemes
 

hi all,

i am investigate some time for the numeric schemes to understand things better.
I have a few questions about some schemes:
The definition of:

Code:

---

Code:
div(phi,csi)      Gauss limitedLinear01;

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tells me that I am calculate csi with gaussian 2nd order and bound the
variable from zero to one - is that right? So what do I limit? The gradients of csi
or the value of csi?

Can I write the above definition like:

Code:

---

Code:
div(phi,csi)      Gauss limitedLinear 0 1;

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??? or are there any differenzes? I refer to the UserGuide.

If that`s correct, I do not understand the following:
Code:

Code:

---

div(phi,csi)      Gauss limitedLinear01 0.25;

---

In my opinion I ll bound csi from zero to 1 and additionally to 0.25 ? But I know that my interpretation is wrong :)



Looking forward for a few comments :)
And thanks in advance

Tobi