From b67701b543b74be826d888cdc8b9037b770bbb61 Mon Sep 17 00:00:00 2001 From: rhaas Date: Fri, 28 May 2010 12:07:30 +0000 Subject: TOVSolver: fix computation of Lorentz factor Use the Valencia three velocity to compute the Lorentz factor. Add references to the definitions to code and param.ccl. Makes no difference for initial data that is at rest, so the testsuites are unchanged. git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinInitialData/TOVSolver/trunk@111 1bdb13ef-5d69-4035-bb54-08abeb3aa7f1 --- param.ccl | 3 +++ 1 file changed, 3 insertions(+) (limited to 'param.ccl') diff --git a/param.ccl b/param.ccl index 3c05d85..2fb9026 100644 --- a/param.ccl +++ b/param.ccl @@ -63,6 +63,9 @@ CCTK_REAL TOV_Position_z[10] "Position of neutron star, z coordinate" STEERABLE= *:* :: "real" } 0.0 +# contravariant fluid three velocity as measured by the Eulerian observers: v^i = u^i / (alpha u^t) + beta^i / alpha +# as used by HydroBase. Follows the Valencia formulation eg. eqs. 26 and 27 of Font et al's paper (gr-qc/9811015) or +# below Equ. 31 in http://relativity.livingreviews.org/Articles/lrr-2008-7/articlesu1.html#x6-30002.1 CCTK_REAL TOV_Velocity_x[10] "(fixed) Velocity of neutron star, x coordinate (caution!)" STEERABLE=always { *:* :: "real" -- cgit v1.2.3