Courant Number

Chicklets@g · March 16, 2016, 08:05

How do we find the courant number for a particular model?

oozcan · March 16, 2016, 08:49

Quote:

Originally Posted by Chicklets@g

How do we find the courant number for a particular model?

if you analyze model in transient yes it will need to define it.otherwise if system you created is relevant to steady-state that is nonsense,

you might as well browse about courant number,

Chicklets@g · March 16, 2016, 08:51

Sorry but I didn't get u..

oozcan · March 16, 2016, 08:55

Quote:

Originally Posted by Chicklets@g

Sorry but I didn't get u..

if you are working on steady-state , you can write courant number box down 200 or 500 or 1 that makes no difference,

Chicklets@g · March 16, 2016, 08:57

Ya thanks a lot..

FMDenaro · March 16, 2016, 09:12

Quote:

Originally Posted by Chicklets@g

How do we find the courant number for a particular model?

what do you mean? the Courant number is defined in terms of discrete components of the computation, not in terms of a particular model

j_02 · March 16, 2016, 09:17

The Courant number is a function of a characteristic velocity, the grid size, and the time-step. Hopefully, you know these parameters from your model setup.

In one dimension, the equation is

$\mathbf{Co} = \frac{u \Delta x}{\Delta t}.$

March 16, 2016, 08:05	Courant Number	#1
Chicklets@g New Member Join Date: Mar 2016 Posts: 16 Rep Power: 10	How do we find the courant number for a particular model?

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March 16, 2016, 08:51		#3
Chicklets@g New Member Join Date: Mar 2016 Posts: 16 Rep Power: 10	Sorry but I didn't get u..

March 16, 2016, 08:57		#5
Chicklets@g New Member Join Date: Mar 2016 Posts: 16 Rep Power: 10	Ya thanks a lot..

March 16, 2016, 09:17		#7
j_02 New Member Join Date: Mar 2014 Posts: 14 Rep Power: 12	The Courant number is a function of a characteristic velocity, the grid size, and the time-step. Hopefully, you know these parameters from your model setup. In one dimension, the equation is $\mathbf{Co} = \frac{u \Delta x}{\Delta t}.$