/usr/include/lorene/C++/Include/et_rot_diff.h is in liblorene-dev 0.0.0~cvs20161116+dfsg-1ubuntu4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 | /*
* Definition of Lorene class Et_rot_diff
*
*/
/*
* 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
*
*/
#ifndef __ET_ROT_DIFF_H_
#define __ET_ROT_DIFF_H_
/*
* $Id: et_rot_diff.h,v 1.5 2014/10/13 08:52:34 j_novak Exp $
* $Log: et_rot_diff.h,v $
* Revision 1.5 2014/10/13 08:52:34 j_novak
* Lorene classes and functions now belong to the namespace Lorene.
*
* Revision 1.4 2005/10/05 15:14:47 j_novak
* Added a Param* as parameter of Etoile_rot::equilibrium
*
* Revision 1.3 2004/03/22 13:12:41 j_novak
* Modification of comments to use doxygen instead of doc++
*
* Revision 1.2 2002/09/13 09:17:33 j_novak
* Modif. commentaires
*
* Revision 1.1.1.1 2001/11/20 15:19:27 e_gourgoulhon
* LORENE
*
* Revision 1.2 2001/10/25 09:20:35 eric
* Ajout de la fonction virtuelle display_poly.
*
* Revision 1.1 2001/10/19 08:17:59 eric
* Initial revision
*
*
* $Header: /cvsroot/Lorene/C++/Include/et_rot_diff.h,v 1.5 2014/10/13 08:52:34 j_novak Exp $
*
*/
// Headers Lorene
#include "etoile.h"
namespace Lorene {
/**
* Class for differentially rotating stars. \ingroup (star)
*
*
*/
class Et_rot_diff : public Etoile_rot {
// Data :
// -----
protected:
/** Function \f$F(\Omega)\f$ defining the rotation profile.
* This function is linked to the components of the fluid 4-velocity
* by
* \f[
* F(\Omega) = u^t u_\varphi \ .
* \f]
* The first argument of \c frot must be \f$\Omega\f$; the second
* argument contains the parameters, the first of which being
* necessarily the central value of \f$\Omega\f$.
*/
double (*frot)(double, const Tbl&) ;
/** Primitive of the function \f$F(\Omega)\f$, which vanishes at the
* stellar center.
* The first argument of \c primfrot must be \f$\Omega\f$; the second
* argument contains the parameters, the first of which being
* necessarily the central value of \f$\Omega\f$.
*/
double (*primfrot)(double, const Tbl&) ;
/** Parameters of the function \f$F(\Omega)\f$.
*
* To be used as the second argument of functions \c frot
* and \c primfrot .
* The parameter \c par_frot(0) must always be the central angular
* velocity.
*/
Tbl par_frot ;
/// Field \f$\Omega(r,\theta)\f$
Tenseur omega_field ;
double omega_min ; ///< Minimum value of \f$\Omega\f$
double omega_max ; ///< Maximum value of \f$\Omega\f$
/// Field \f$\int_{\Omega_{\rm c}}^\Omega F(\Omega') \, d\Omega' \f$
Tenseur prim_field ;
// Constructors - Destructor
// -------------------------
public:
/** Standard constructor.
*
* @param mp_i Mapping on which the star will be defined
* @param nzet_i Number of domains occupied by the star
* @param relat should be \c true for a relativistic
* star, \c false for a Newtonian one
* @param eos_i Equation of state of the stellar matter
* @param frot_i Function \f$F(\Omega)\f$ defining the rotation profile.
* @param primfrot_i Primitive of \f$F(\Omega)\f$ which vanishes at the
* stellar center
* @param par_frot_i Parameters of functions \c frot_i
* and \c primfrot_i ,
* \c par_frot_i(0) being the central value of
* \f$\Omega\f$.
*/
Et_rot_diff(Map& mp_i, int nzet_i, bool relat, const Eos& eos_i,
double (*frot_i)(double, const Tbl&),
double (*primfrot_i)(double, const Tbl&),
const Tbl& par_frot_i) ;
Et_rot_diff(const Et_rot_diff& ) ; ///< Copy constructor
/** Constructor from a file (see \c sauve(FILE*) ).
*
* @param mp_i Mapping on which the star will be defined
* @param eos_i Equation of state of the stellar matter
* @param fich input file (must have been created by the function
* \c sauve )
* @param frot_i Function \f$F(\Omega)\f$ defining the rotation profile.
* @param primfrot_i Primitive of \f$F(\Omega)\f$ which vanishes at the
* stellar center
*/
Et_rot_diff(Map& mp_i, const Eos& eos_i, FILE* fich,
double (*frot_i)(double, const Tbl&),
double (*primfrot_i)(double, const Tbl&) ) ;
virtual ~Et_rot_diff() ; ///< Destructor
// Memory management
// -----------------
// Everything is inherited from Etoile_rot
// Mutators / assignment
// ---------------------
public:
/// Assignment to another \c Et_rot_diff
void operator=(const Et_rot_diff& ) ;
// Accessors
// ---------
public:
/// Returns the angular velocity field \f$\Omega\f$
const Tenseur& get_omega_field() const {return omega_field;} ;
/** Returns the central value of the rotation angular velocity
* (\c [f_unit] )
*/
virtual double get_omega_c() const ;
// Outputs
// -------
public:
virtual void sauve(FILE *) const ; ///< Save in a file
/// Display in polytropic units
virtual void display_poly(ostream& ) const ;
protected:
/// Operator >> (virtual function called by the operator <<).
virtual ostream& operator>>(ostream& ) const ;
// Computational routines
// ----------------------
public:
virtual double tsw() const ; ///< Ratio T/W
/** Computes the hydrodynamical quantities relative to the Eulerian
* observer from those in the fluid frame.
*
* The calculation is performed starting from the quantities
* \c omega_field , \c ent , \c ener , \c press ,
* and \c a_car ,
* which are supposed to be up to date.
* From these, the following fields are updated:
* \c gam_euler , \c u_euler , \c ener_euler , \c s_euler .
*
*/
virtual void hydro_euler() ;
/** Computes \f$\Omega(r,\theta)\f$ (member \c omega_field ).
*
* The computation amounts to solving the equation
* \f[
* F(\Omega) - {B^2 r^2\sin^2\theta (\Omega - N^\varphi)
* \over N^2 - B^2 r^2 \sin^2(\Omega-N^\varphi)^2} = 0
* \f]
* for \f$\Omega\f$.
*
* @param omeg_min [input] Lower bound of the interval for
* searching omega
* @param omeg_max [input] Higher bound of the interval for
* searching omega
* @param precis [input] Required precision in the determination of
* the zero by the secant method
* @param nitermax [input] Maximum number of iterations in the secant
* method to compute the zero.
*/
void fait_omega_field(double omeg_min, double omeg_max,
double precis, int nitermax) ;
/// Computes the member \c prim_field from \c omga_field .
void fait_prim_field() ;
/** Evaluates \f$F(\Omega)\f$, where \e F is the function
* defining the rotation profile.
* This function is linked to the components of the fluid 4-velocity
* by
* \f[
* F(\Omega) = u^t u_\varphi \ .
* \f]
*
* \c funct_omega calls \c frot with the parameters
* \c par_frot .
*
* @param omeg [input] value of \f$\Omega\f$
* @return value of \f$F(\Omega)\f$
*
*/
double funct_omega(double omeg) const ;
/** Evaluates the primitive of \f$F(\Omega)\f$, where \e F is the function
* defining the rotation profile.
*
* @param omeg [input] value of \f$\Omega\f$
* @return value of
* \f$\int_{\Omega_{\rm c}}^\Omega F(\Omega') \, d\Omega' \f$
*
*/
double prim_funct_omega(double omeg) const ;
/** Computes an equilibrium configuration.
*
* @param ent_c [input] Central enthalpy
* @param omega0 [input] Requested central angular velocity
* (if \c fact_omega=1. )
* @param fact_omega [input] 1.01 = search for the Keplerian frequency,
* 1. = otherwise.
* @param nzadapt [input] Number of (inner) domains where the mapping
* adaptation to an iso-enthalpy surface
* should be performed
* @param ent_limit [input] 1-D \c Tbl of dimension \c nzet which
* defines the enthalpy at the outer boundary
* of each domain
* @param icontrol [input] Set of integer parameters (stored as a
* 1-D \c Itbl of size 8) to control the
* iteration:
* \li \c icontrol(0) = mer_max : maximum number of steps
* \li \c icontrol(1) = mer_rot : step at which the rotation is
* switched on
* \li \c icontrol(2) = mer_change_omega : step at which the rotation
* velocity is changed to reach the final one
* \li \c icontrol(3) = mer_fix_omega : step at which the final
* rotation velocity must have been reached
* \li \c icontrol(4) = mer_mass : the absolute value of
* \c mer_mass is the step from which the
* baryon mass is forced to converge,
* by varying the central enthalpy
* (\c mer_mass > 0 ) or the angular
* velocity (\c mer_mass < 0 )
* \li \c icontrol(5) = mermax_poisson : maximum number of steps in
* \c Map_et::poisson
* \li \c icontrol(6) = mer_triax : step at which the 3-D
* perturbation is switched on
* \li \c icontrol(7) = delta_mer_kep : number of steps
* after \c mer_fix_omega when \c omega
* starts to be increased by \c fact_omega
* to search for the Keplerian velocity
*
* @param control [input] Set of parameters (stored as a
* 1-D \c Tbl of size 7) to control the
* iteration:
* \li \c control(0) = precis : threshold on the enthalpy relative
* change for ending the computation
* \li \c control(1) = omega_ini : initial central angular velocity,
* switched on only if \c mer_rot < 0 ,
* otherwise 0 is used
* \li \c control(2) = relax : relaxation factor in the main
* iteration
* \li \c control(3) = relax_poisson : relaxation factor in
* \c Map_et::poisson
* \li \c control(4) = thres_adapt : threshold on dH/dr for
* freezing the adaptation of the mapping
* \li \c control(5) = ampli_triax : relative amplitude of
* the 3-D perturbation
* \li \c control(6) = precis_adapt : precision for
* \c Map_et::adapt
*
* @param mbar_wanted [input] Requested baryon mass (effective only
* if \c mer_mass > mer_max )
* @param aexp_mass [input] Exponent for the increase factor of the
* central enthalpy to converge to the
* requested baryon mass
* @param diff [output] 1-D \c Tbl of size 7 for the storage of
* some error indicators :
* \li \c diff(0) : Relative change in the enthalpy field
* between two successive steps
* \li \c diff(1) : Relative error in the resolution of the
* Poisson equation for \c nuf
* \li \c diff(2) : Relative error in the resolution of the
* Poisson equation for \c nuq
* \li \c diff(3) : Relative error in the resolution of the
* Poisson equation for \c dzeta
* \li \c diff(4) : Relative error in the resolution of the
* Poisson equation for \c tggg
* \li \c diff(5) : Relative error in the resolution of the
* equation for \c shift (x comp.)
* \li \c diff(6) : Relative error in the resolution of the
* equation for \c shift (y comp.)
*/
virtual void equilibrium(double ent_c, double omega0, double fact_omega,
int nzadapt, const Tbl& ent_limit,
const Itbl& icontrol, const Tbl& control,
double mbar_wanted, double aexp_mass,
Tbl& diff, Param* = 0x0) ;
};
}
#endif
|