From 9eaaeff77102591f18987eacc3fdc0ac5583d1cf Mon Sep 17 00:00:00 2001 From: bmundim Date: Thu, 17 May 2012 19:48:27 +0000 Subject: Change default value of kap_dc from 1.0 to 10.0 as well as the recommendations. This is based on the magnetic monopole tests. It indicates that kap_dc = 10.0 reaches the best balance between damping and advecting. kap_dc = 1.0 advects well but damps much slower. kap_dc = 100.0 seems to turn the problem into a stiff one and it fails to either damp or advect the divergencies away when compared to the other two cases. The recommendation then goes to use values between 1.0 and 10.0. git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinEvolve/GRHydro/trunk@337 c83d129a-5a75-4d5a-9c4d-ed3a5855bf45 --- param.ccl | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'param.ccl') diff --git a/param.ccl b/param.ccl index d022a93..c22b6c1 100644 --- a/param.ccl +++ b/param.ccl @@ -529,8 +529,8 @@ boolean clean_divergence "Use hyperbolic divergence cleaning" CCTK_REAL kap_dc "The kap parameter for divergence cleaning" { - 0:* :: "Any non-negative value, but 1/144 to 1 seems preferred" -} 1.0 + 0:* :: "Any non-negative value, but 1.0 to 10.0 seems preferred" +} 10.0 KEYWORD psidcspeed "Which speed to set for psidc" { -- cgit v1.2.3