Subject: Navier-Stokes equations and itensor package.
From: Valery Pipin
Date: Mon, 17 May 2010 00:38:06 +0800
Hi!
> Hello, I want to be able to deal with NS or RANS equations with Maxima ---
> symbolically sum them, multiply by some functions in order to obtain new
> sets of equations. As far as I understand I need to employ itensor
> package, but there are no tutorials to help.
What kind of tutorial do you look for? /share/tensor contains a number of
demos.
>
> Could any one show me how to write next equations in Maxima?
>
> http://bit.ly/bfmzlV (mass equation)
>
Your site is not seen from my place (in China).
Do you mean mass conservation?
load("itensor.lisp");
ishow('diff(rho([]),t)+idiff(rho([])*V([],[i]),i))$
or
ishow('diff(rho([]),t)+covdiff(rho([])*V([],[i]),i))$
if you want to transform equation to components. Look at itensor8.dem
> http://bit.ly/bXW5sj (momentum equation)
This will be longer and may depends on the problem
best regards
Valery