Discretized PDE for wave motion 
Discretized PDE for wave motion 
MrBlonde81 
Apr 16 2009, 07:19 AM
Post
#1

Member Group: Members Posts: 11 Joined: 7December 07 Member No.: 4,660 
I have discretized PDE:s with Modelica before (continuty equation etc) but I wanted to compare with somebody else how had done it for a wave equation.
Nevertheless.... I found a book on the topic. Where exactly do you expect problems? If you know how to implement a derivative with respect to the variables you need...that all or? What about this? http://en.wikipedia.org/wiki/Numerical_differentiation 
RungeZipperer 
Apr 16 2009, 07:06 AM
Post
#2

Advanced Member Group: Members Posts: 59 Joined: 14March 06 Member No.: 4 
Where exactly do you expect problems? If you know how to implement a derivative with respect to the variables you need...that´s all or?
What about this? http://en.wikipedia.org/wiki/Numerical_differentiation 
MrBlonde81 
Apr 16 2009, 06:45 AM
Post
#3

Member Group: Members Posts: 11 Joined: 7December 07 Member No.: 4,660 
Hi
I am trying to model a wave motion in an open channel with Modelica. I would like to model the wave in 1D with a discretized partial differential equation (pressure fluctuations etc). Does anybody have some sample code for solving such a problem? //MrBlonde 
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