From 3c4c7191cc89fc255f5ac66156eec06a84c77f9d Mon Sep 17 00:00:00 2001 From: schnetter Date: Fri, 14 May 2004 13:39:52 +0000 Subject: Fix a severe bug: forgot to divide by the grid spacing. Remove spurious factor of 1/16. Add second order dissipation, which is first order correct. Checked stability interval. It should now be as described. git-svn-id: http://svn.cactuscode.org/arrangements/CactusNumerical/Dissipation/trunk@4 850bcc8b-0e4f-0410-8c26-8d28fbf1eda9 --- param.ccl | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'param.ccl') diff --git a/param.ccl b/param.ccl index b50b7da..5640ea1 100644 --- a/param.ccl +++ b/param.ccl @@ -5,9 +5,15 @@ BOOLEAN verbose "produce log output" STEERABLE=always { } "no" +INT order "Dissipation order" STEERABLE=always +{ + 2 :: "second order dissipation (first order accurate)" + 4 :: "fourth order dissipation (third order accurate)" +} 4 + REAL epsdis "Dissipation strength" STEERABLE=always { - *:* :: "0 for no dissipation. Unstable for epsdis<0 and epsdis>1/" + *:* :: "0 for no dissipation. Unstable for epsdis<0 and epsdis>1/3" } 0.2 STRING vars "List of evolved grid functions that should have dissipation added" STEERABLE=always -- cgit v1.2.3