MrBlonde81
Apr 16 2009, 06:45 AM
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
RungeZipperer
Apr 16 2009, 07:06 AM
Where exactly do you expect problems? If you know how to implement a derivative with respect to the variables you need...thatīs all or?
What about this?
http://en.wikipedia.org/wiki/Numerical_differentiation
MrBlonde81
Apr 16 2009, 07:19 AM
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.
QUOTE(RungeZipperer @ Apr 16 2009, 07:06 AM)

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