Hi Stephane, Thank you very much for your time. I am still not clear how does it work with ff3d.
Assumption: there is a block of frozen soil column, a constant
temperature(20C) is applied to the upper surface, the soil will melt
downward. The thaw front is moving at X(t)=f(t); please refer to attached
file.
Could you please give me an example how to define the domain space, and the
lower boundary in ff3d?
Thanks,
Hao
On Nov 6, 2007 5:52 PM, Stephane Del Pino <[EMAIL PROTECTED]> wrote:
> Dear Hao,
>
> Le lundi 5 novembre 2007, Hao a écrit:
> > Hi Stephane,
> >
> > I have some problems with ff3d.
> >
> > 1. Is it possible to solve a one dimension problem with ff3d? how to
> define
> > a, b, and n?
> > such as a consolidation problem, du/dt=Cv d(du/dz)/dz
> Yes, you just need to define only one layer of cells in x and y for
> instance:
> --------------
> vector n = (2,2,10);
> vector a = (0,0,0);
> vector b = (1,1,2);
> mesh m = structured(n,a,b);
> --------------
>
> > 2.Is it possible to solve a moving boundary problem?
> > such as a(0,0,0), b(10,10,z), where z is changing with time.
> Yes.
>
> > 3.Is it possible to solve the problem 2 in the following way?
> >
> > for(int t=0; t<360; t++){
> > zz1=aplha*t
> > a(0,0,0)
> > b(0,0,zz1)
> > n=(0,0,zz2)
> > ...
> > }
> Again, yes.
>
> Best regards,
> Stéphane.
>
>
>
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Assumption.doc
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