Re: Fluid dynamic over a complex terrain
- To: mathgroup at smc.vnet.net
- Subject: [mg109914] Re: Fluid dynamic over a complex terrain
- From: Oliver Ruebenkoenig <ruebenko at wolfram.com>
- Date: Sat, 22 May 2010 00:43:12 -0400 (EDT)
On Thu, 20 May 2010, Luc Barthelet wrote: > I am interesting in modeling the flow of air or water over a terrain > with varying elevation. (the resolution is either 128x128 or 256x256). > I have a few known values of the speed in some of the cells, and I am > interested in extrapolating a solution that takes the terrain into account. > For the wind, I assume a layer that behaves like a ceiling. (and of > course the same for the water). > > I believe I need a solution that respects the Navier-Stokes equations > and also mass conservation. > An example similar to what I am trying to achieve can be found at > http://sfports.wr.usgs.gov/cgi-bin/wind/windbin.cgi > Has anyone implemented anything like this in Mathematica before? I have implemented something vaguely like this; There is finite difference code and a finite element code for the transient Navier-Stokes equation. http://portal.uni-freiburg.de/imteksimulation/downloads/ims Both would need serious modification to get what you are looking for but both solve the NS-equation. Oliver > > I looked around and also asked directly some of the Authors of > Demonstration, but no luck yet. I'd rather not reinvent the wheel. > > Thank you in advance, > > Luc > > > >