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Forum: Main CFD Forum

August 25, 2011, 16:53

Replies: 7

How to calculate simulation time?

Views: 8,910

Posted By cfdnewbie

No problem. Come back if you have any more...

No problem. Come back if you have any more questions!

Forum: Main CFD Forum

August 25, 2011, 13:53

Replies: 7

How to calculate simulation time?

Views: 8,910

Posted By cfdnewbie

ehh...no :) first, you mixed your units... mm *...

ehh...no :) first, you mixed your units... mm * m/s...
then, to the get characteristic time, you would have to divide the length by the velocity, NOT multiply it...

the speed of sound in your...

Forum: Main CFD Forum

August 25, 2011, 12:03

Replies: 7

How to calculate simulation time?

Views: 8,910

Posted By cfdnewbie

There are two things that govern your timestep: ...

There are two things that govern your timestep:
a) physics. Find out which is the timestep that governs your physics, i.e. what is the smallest time phenomena in your solution. Let's say if...

Forum: Main CFD Forum

August 25, 2011, 10:21

Replies: 7

How to calculate simulation time?

Views: 8,910

Posted By cfdnewbie

What do you mean by simulation time? The...

What do you mean by simulation time?
The physical time you are trying to cover in your simulation? That's something you fix/decide upon....
The wall clock time your code needs to perform a certain...

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