24 May
2011
24 May
'11
1:11 a.m.
On 23 May 2011, at 23:49, Bruno Coutinho Mundim wrote:
- Bruno still has troubles with RotatingSymmetry180 when using the
development version of ET for the BBH example (parfile is in subversion)
- will try running without RotatingSymmetry180
Just got the results: no problem without RotatingSymmetry180.
OK good, so we know where the problem is.
- convergence in norms is bad, somewhat better in 1D data for a short
time after simulation startup
A closer look into the initial data revealed that both the l2-norm of the hamiltonian constraint and its value along the x-axis converge to the expected order, 4th order. This convergence is not observed anymore in the very next coarse step when the comparison is done again.
The time prolongation is only 3rd order accurate so I wouldn't expect convergence at 4th order.
--
Ian Hinder
ian.hinder@aei.mpg.de