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Search: Posts Made By: ericnutsch
Forum: OpenFOAM August 25, 2016, 03:16
Replies: 12
Views: 6,547
Posted By ericnutsch
By definition, a steady state solution does not...

By definition, a steady state solution does not consider time. If said conditions exist for infinite time I will arrive at an unchanging "steady state".

A better phrasing would be: "your solution...
Forum: OpenFOAM December 18, 2009, 23:39
Replies: 12
Views: 6,547
Posted By ericnutsch
Thanks for all the excellent help Alberto! I...

Thanks for all the excellent help Alberto!

I will give your code a try :D
Forum: OpenFOAM December 18, 2009, 22:52
Replies: 12
Views: 6,547
Posted By ericnutsch
Though i have not started this simulation yet, i...

Though i have not started this simulation yet, i currently plan to use pisoFoam.

I am planning on using a rotating reference frame so my solver may change in order to accommodated that aspect.
...
Forum: OpenFOAM December 18, 2009, 18:52
Replies: 12
Views: 6,547
Posted By ericnutsch
using adaptive time step?

How do i "turn the adaptive time step on "?


I read this forum: http://www.cfd-online.com/Forums/openfoam-solving/57961-adaptive-timestepping.html

It said to include readTimeControls.H,...
Forum: OpenFOAM December 17, 2009, 12:48
Replies: 12
Views: 6,547
Posted By ericnutsch
Using the CFL condition to set the delta T seems...

Using the CFL condition to set the delta T seems like a good approach.

(U * deltaT)/deltaX < Courant <1

So for 10m/s and 1mm resolution, the time step must be less than 0.0001. Simple enough....
Forum: OpenFOAM December 16, 2009, 21:37
Replies: 12
Views: 6,547
Posted By ericnutsch
Red face Time in OpenFOAM

In steady state simulations the time really isnt important. Basicaly your best solution is the most recent time stamp.

But when you get into time dependent simulations how do you get all of your...
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