From 7077fb77117ceeae84d65ed44d23ed91ae8538ee Mon Sep 17 00:00:00 2001 From: bmundim Date: Fri, 11 May 2012 04:00:52 +0000 Subject: Mention the reference frame the fluid velocity is measured. git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinBase/HydroBase/trunk@52 57fe0bb3-ccba-405f-9b23-de0201f165b7 --- doc/documentation.tex | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/doc/documentation.tex b/doc/documentation.tex index 9be3134..67b8ce2 100644 --- a/doc/documentation.tex +++ b/doc/documentation.tex @@ -138,7 +138,8 @@ details): \item \verb|rho|: rest mass density $\varrho$ \item \verb|press|: pressure $p$ \item \verb|eps|: specific internal energy $\epsilon$ - \item \verb|vel[3]|: contravariant fluid three velocity $v^i$ defined as + \item \verb|vel[3]|: contravariant fluid three velocity $v^i$ with respect +to the Eulerian observer defined as \begin{equation} v^i = \frac{u^i}{\alpha u^0} + \frac{\beta^i}{\alpha} \end{equation} -- cgit v1.2.3