LORENE
binhor_viriel.C
1/*
2 * Copyright (c) 2005 Francois Limousin
3 * Jose Luis Jaramillo
4 *
5 * This file is part of LORENE.
6 *
7 * LORENE is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * LORENE is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with LORENE; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 *
21 */
22
23
24char binhor_viriel_C[] = "$Header: /cvsroot/Lorene/C++/Source/Bin_hor/binhor_viriel.C,v 1.5 2014/10/13 08:52:42 j_novak Exp $" ;
25
26/*
27 * $Id: binhor_viriel.C,v 1.5 2014/10/13 08:52:42 j_novak Exp $
28 * $Log: binhor_viriel.C,v $
29 * Revision 1.5 2014/10/13 08:52:42 j_novak
30 * Lorene classes and functions now belong to the namespace Lorene.
31 *
32 * Revision 1.4 2014/10/06 15:13:01 j_novak
33 * Modified #include directives to use c++ syntax.
34 *
35 * Revision 1.3 2007/04/13 15:28:55 f_limousin
36 * Lots of improvements, generalisation to an arbitrary state of
37 * rotation, implementation of the spatial metric given by Samaya.
38 *
39 * Revision 1.2 2005/04/08 12:35:07 f_limousin
40 * Just to avoid warnings...
41 *
42 * Revision 1.1 2005/02/11 18:22:06 f_limousin
43 * First version
44 *
45 *
46 * $Header: /cvsroot/Lorene/C++/Source/Bin_hor/binhor_viriel.C,v 1.5 2014/10/13 08:52:42 j_novak Exp $
47 *
48 */
49
50#include <cmath>
51
52// Lorene
53#include "tensor.h"
54#include "isol_hor.h"
55
56namespace Lorene {
58
59 int nz1 = mp.get_mg()->get_nzone() ;
60
61 Valeur** devel_psi (psi_auto.asymptot(1)) ;
62 Valeur** devel_n (n_auto.asymptot(1)) ;
63
64 double erreur = (2*(*devel_psi[1])(nz1-1, 0, 0, 0)
65 + (*devel_n[1])(nz1-1, 0, 0, 0))/fabs ((*devel_n[1])(nz1-1, 0, 0, 0)) ;
66
67 return erreur ;
68}
69
70
71double Bin_hor::viriel () const{
72
73 int nz_un = hole1.mp.get_mg()->get_nzone() ;
74 int nz_deux = hole2.mp.get_mg()->get_nzone() ;
75
76 Valeur** devel_psi_un (hole1.psi_auto.asymptot(1)) ;
77 Valeur** devel_psi_deux (hole2.psi_auto.asymptot(1)) ;
78 Valeur** devel_n_un (hole1.n_auto.asymptot(1)) ;
79 Valeur** devel_n_deux (hole2.n_auto.asymptot(1)) ;
80
81 double res =
82 (2*(*devel_psi_un[1])(nz_un-1, 0, 0, 0)+
83 2*(*devel_psi_deux[1])(nz_deux-1, 0, 0, 0)+
84 (*devel_n_deux[1])(nz_deux-1, 0, 0, 0) +
85 (*devel_n_un[1])(nz_un-1, 0, 0, 0))
86 / fabs ((*devel_n_deux[1])(nz_deux-1, 0, 0, 0) +
87 (*devel_n_un[1])(nz_un-1, 0, 0, 0)) ;
88
89 return res ;
90}
91
92}
double viriel() const
Computes the viriel error, that is the difference between the ADM and the Komar masses,...
Single_hor hole1
Black hole one.
Definition isol_hor.h:1342
Single_hor hole2
Black hole two.
Definition isol_hor.h:1343
const Mg3d * get_mg() const
Gives the Mg3d on which the mapping is defined.
Definition map.h:765
int get_nzone() const
Returns the number of domains.
Definition grilles.h:448
Valeur ** asymptot(int n, const int flag=0) const
Asymptotic expansion at r = infinity.
Scalar psi_auto
Conformal factor .
Definition isol_hor.h:924
Map_af & mp
Affine mapping.
Definition isol_hor.h:900
double viriel_seul() const
Computes the viriel error, that is the difference between the ADM and the Komar masses,...
Scalar n_auto
Lapse function .
Definition isol_hor.h:915
Values and coefficients of a (real-value) function.
Definition valeur.h:287
Lorene prototypes.
Definition app_hor.h:64