et_rot_diff_global.C
/*
* Methods for computing global quantities within the class Et_rot_diff
*
* (see file et_rot_diff.h for documentation)
*/
/*
* Copyright (c) 2001 Eric Gourgoulhon
*
* This file is part of LORENE.
*
* LORENE is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* LORENE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with LORENE; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
char et_rot_diff_global_C[] = "$Header: /cvsroot/Lorene/C++/Source/Etoile/et_rot_diff_global.C,v 1.4 2014/10/13 08:52:57 j_novak Exp $" ;
/*
* $Id: et_rot_diff_global.C,v 1.4 2014/10/13 08:52:57 j_novak Exp $
* $Log: et_rot_diff_global.C,v $
* Revision 1.4 2014/10/13 08:52:57 j_novak
* Lorene classes and functions now belong to the namespace Lorene.
*
* Revision 1.3 2014/10/06 15:13:08 j_novak
* Modified #include directives to use c++ syntax.
*
* Revision 1.2 2003/12/19 16:21:42 j_novak
* Shadow hunt
*
* Revision 1.1.1.1 2001/11/20 15:19:28 e_gourgoulhon
* LORENE
*
* Revision 1.2 2001/10/24 16:06:53 eric
* fonction tsw(): correction erreur ener. cin. (facteur 0.5).
*
* Revision 1.1 2001/10/19 08:18:30 eric
* Initial revision
*
*
* $Header: /cvsroot/Lorene/C++/Source/Etoile/et_rot_diff_global.C,v 1.4 2014/10/13 08:52:57 j_novak Exp $
*
*/
// Headers C
#include <cmath>
// Headers Lorene
#include "et_rot_diff.h"
//----------------------------//
// T/W //
//----------------------------//
namespace Lorene {
double Et_rot_diff::tsw() const {
if (p_tsw == 0x0) { // a new computation is required
Cmp dens = uuu() ;
dens.mult_r() ; // Multiplication by
dens.va = (dens.va).mult_st() ; // r sin(theta)
if (relativistic) {
dens = omega_field() * a_car() * b_car() * (ener_euler() + press())
* dens ;
}
else { // Newtonian case
dens = omega_field() * nbar() * dens ;
}
dens.std_base_scal() ;
double tcin = 0.5 * dens.integrale() ;
if (relativistic) {
Cmp dens2 = a_car() * bbb() * gam_euler() * ener() ;
dens2.std_base_scal() ;
double mass_p = dens2.integrale() ;
p_tsw = new double( tcin / ( mass_p + tcin - mass_g() ) ) ;
}
else { // Newtonian case
Cmp dens2 = 0.5 * nbar() * logn() ;
dens2.std_base_scal() ;
double wgrav = dens2.integrale() ;
p_tsw = new double( tcin / fabs(wgrav) ) ;
}
}
return *p_tsw ;
}
}
Lorene::Cmp
Component of a tensorial field *** DEPRECATED : use class Scalar instead ***.
Definition cmp.h:446
Lorene::Cmp::va
Valeur va
The numerical value of the Cmp.
Definition cmp.h:464
Lorene::Cmp::std_base_scal
void std_base_scal()
Sets the spectral bases of the Valeur va to the standard ones for a scalar.
Definition cmp.C:644
Lorene::Cmp::mult_r
void mult_r()
Multiplication by r everywhere.
Definition cmp_r_manip.C:91
Lorene::Cmp::integrale
double integrale() const
Computes the integral over all space of *this .
Definition cmp_integ.C:55
Lorene::Et_rot_diff::tsw
virtual double tsw() const
Ratio T/W.
Definition et_rot_diff_global.C:67
Lorene::Et_rot_diff::omega_field
Tenseur omega_field
Field .
Definition et_rot_diff.h:105
Lorene::Etoile_rot::uuu
Tenseur uuu
Norm of u_euler.
Definition etoile.h:1518
Lorene::Etoile_rot::logn
Tenseur & logn
Metric potential = logn_auto.
Definition etoile.h:1521
Lorene::Etoile_rot::mass_g
virtual double mass_g() const
Gravitational mass.
Definition et_rot_global.C:157
Lorene::Etoile_rot::bbb
Tenseur bbb
Metric factor B.
Definition etoile.h:1504
Lorene::Etoile_rot::p_tsw
double * p_tsw
Ratio T/W.
Definition etoile.h:1632
Lorene::Etoile_rot::b_car
Tenseur b_car
Square of the metric factor B.
Definition etoile.h:1507
Lorene::Etoile::nbar
Tenseur nbar
Baryon density in the fluid frame.
Definition etoile.h:459
Lorene::Etoile::gam_euler
Tenseur gam_euler
Lorentz factor between the fluid and Eulerian observers.
Definition etoile.h:471
Lorene::Etoile::ener
Tenseur ener
Total energy density in the fluid frame.
Definition etoile.h:460
Lorene::Etoile::press
Tenseur press
Fluid pressure.
Definition etoile.h:461
Lorene::Etoile::relativistic
bool relativistic
Indicator of relativity: true for a relativistic star, false for a Newtonian one.
Definition etoile.h:437
Lorene::Etoile::ener_euler
Tenseur ener_euler
Total energy density in the Eulerian frame.
Definition etoile.h:465
Lorene::Etoile::a_car
Tenseur a_car
Total conformal factor .
Definition etoile.h:515
Lorene
Lorene prototypes.
Definition app_hor.h:64