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Forum: Main CFD Forum

August 10, 2011, 16:03

Replies: 9

Unsteady flow code - Problem with space loop

Views: 1,620

Posted By Hooman

Many thanks. That helped alot. :)

Many thanks. That helped alot. :)

Forum: Main CFD Forum

August 9, 2011, 18:16

Replies: 9

Unsteady flow code - Problem with space loop

Views: 1,620

Posted By Hooman

yes! you're right. Thanks! So is there a...

yes! you're right. Thanks!

So is there a specific type of boundary conditions or a mixture of some that needs to be used with this type of equation?

Thanks again.

Forum: Main CFD Forum

August 9, 2011, 18:02

Replies: 9

Unsteady flow code - Problem with space loop

Views: 1,620

Posted By Hooman

hmmm... Sorry ... well, that's the general form...

hmmm... Sorry ... well, that's the general form of the equation.....although the variables are evaluated at nodes which are at different locations... i.e. they change with space. So the 'i' is really...

Forum: Main CFD Forum

August 9, 2011, 06:00

Replies: 9

Unsteady flow code - Problem with space loop

Views: 1,620

Posted By Hooman

I have a set of first order ODE's of the form: ...

I have a set of first order ODE's of the form:

dy/dt = f(y,t).

Thanks!

Forum: Main CFD Forum

August 8, 2011, 09:25

Replies: 9

Unsteady flow code - Problem with space loop

Views: 1,620

Posted By Hooman

Unsteady flow code - Problem with space loop

Hi all,
I have discretized my equations in a way that for example the velocity depends on the velocity of the previous neighboring element so:

h = number of elements
t = 0: 0.5 : 10
for j= 1 :...

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