Eos_bifluid Class Reference
[Equations of state]

2-fluids equation of state base class. More...

#include <eos_bifluid.h>

Inheritance diagram for Eos_bifluid:
Eos_bf_poly Eos_bf_poly_newt

List of all members.

Public Member Functions

virtual ~Eos_bifluid ()
 Destructor.
void operator= (const Eos_bifluid &)
 Assignment to another Eos_bifluid.
string get_name () const
 Returns the EOS name.
double get_m1 () const
 Return the individual particule mass $m_1$.
double get_m2 () const
 Return the individual particule mass $m_2$.
virtual bool operator== (const Eos_bifluid &) const =0
 Comparison operator (egality).
virtual bool operator!= (const Eos_bifluid &) const =0
 Comparison operator (difference).
virtual int identify () const =0
 Returns a number to identify the sub-classe of Eos_bifluid the object belongs to.
virtual void sauve (FILE *) const
 Save in a file.
void calcule_tout (const Cmp &ent1, const Cmp &ent2, const Cmp &delta2, Cmp &nbar1, Cmp &nbar2, Cmp &ener, Cmp &press, int nzet, int l_min=0) const
 General computational method for Cmp 's, it computes both baryon densities, energy and pressure profiles.
virtual bool nbar_ent_p (const double ent1, const double ent2, const double delta2, double &nbar1, double &nbar2) const =0
 Computes both baryon densities from the log-enthalpies (virtual function implemented in the derived classes).
virtual double nbar_ent_p1 (const double ent1) const =0
 Computes baryon density out of the log-enthalpy asuming that only fluid 1 is present (virtual function implemented in the derived classes).
virtual double nbar_ent_p2 (const double ent2) const =0
 Computes baryon density out of the log-enthalpy assuming that only fluid 2 is present (virtual function implemented in the derived classes).
void nbar_ent (const Cmp &ent1, const Cmp &ent2, const Cmp &delta2, Cmp &nbar1, Cmp &nbar2, int nzet, int l_min=0) const
 Computes both baryon density fields from the log-enthalpy fields and the relative velocity.
virtual double ener_nbar_p (const double nbar1, const double nbar2, const double delta2) const =0
 Computes the total energy density from the baryonic densities and the relative velocity.
Cmp ener_ent (const Cmp &ent1, const Cmp &ent2, const Cmp &delta2, int nzet, int l_min=0) const
 Computes the total energy density from the log-enthalpy fields and the relative velocity.
virtual double press_nbar_p (const double nbar1, const double nbar2, const double delta2) const =0
 Computes the pressure from the baryonic densities and the relative velocity.
Cmp press_ent (const Cmp &ent1, const Cmp &ent2, const Cmp &delta2, int nzet, int l_min=0) const
 Computes the pressure from the log-enthalpy fields and the relative velocity.
virtual double get_K11 (const double n1, const double n2, const double x) const =0
 Computes the derivative of the energy with respect to (baryonic density 1)$^2$.
virtual double get_K12 (const double n1, const double n2, const double x) const =0
 Computes the derivative of the energy with respect to $x^2=n_1n_2\Gamma_\Delta$.
virtual double get_K22 (const double n1, const double n2, const double x) const =0
 Computes the derivative of the energy/(baryonic density 2)$^2$.
Cmp get_Knn (const Cmp &nbar1, const Cmp &nbar2, const Cmp &x2, int nzet, int l_min=0) const
 Computes the derivatives of the energy/(baryonic density 1)$^2$.
Cmp get_Kpp (const Cmp &nbar1, const Cmp &nbar2, const Cmp &x2, int nzet, int l_min=0) const
 Computes the derivatives of the energy/(baryonic density 2)$^2$.
Cmp get_Knp (const Cmp &nbar1, const Cmp &nbar2, const Cmp &x2, int nzet, int l_min=0) const
 Computes the derivatives of the energy with respect to $x^2=n_1n_2\Gamma_\Delta^2$.
void calcule (const Cmp &nbar1, const Cmp &nbar2, const Cmp &x2, int nzet, int l_min, double(Eos_bifluid::*fait)(double, double, double) const, Cmp &resu) const
 General computational method for Cmp 's ($K^{ij}$'s).
virtual Eos * trans2Eos () const =0
 Makes a translation from Eos_bifluid to Eos .

Static Public Member Functions

static Eos_bifluid * eos_from_file (FILE *)
 Construction of an EOS from a binary file.
static Eos_bifluid * eos_from_file (const char *fname)
 Construction of an EOS from a formatted file.

Protected Member Functions

 Eos_bifluid ()
 Standard constructor.
 Eos_bifluid (const char *name_i, double mass1, double mass2)
 Standard constructor with name and the two masses per particle.
 Eos_bifluid (const Eos_bifluid &)
 Copy constructor.
 Eos_bifluid (FILE *)
 Constructor from a binary file (created by the function sauve(FILE*) ).
 Eos_bifluid (const char *fname)
 Constructor from a formatted file.
virtual ostream & operator>> (ostream &) const =0
 Operator >>.

Protected Attributes

string name
 EOS name.
double m_1
 Individual particle mass $m_1$ [unit: $m_B = 1.66\ 10^{-27} \ {\rm kg}$].
double m_2
 Individual particle mass $m_2$ [unit: $m_B = 1.66\ 10^{-27} \ {\rm kg}$].

Friends

ostream & operator<< (ostream &, const Eos_bifluid &)
 Display.

Detailed Description

2-fluids equation of state base class.

Fluid 1 is supposed to correspond to neutrons, whereas fluid 2 corresponds to e.g. protons. Neutron 4-velocity is $u^\alpha_{\rm n}$ and proton one is $u^\alpha_{\rm p}$

Therefore, the EOS is defined by giving two log-enthalpies AND a relative velocity as inputs. The output are then: two baryonic densities, the total energy density and pressure The enthalpies $f_1$ and $f_2$ are obtained through the formula

\[ {\rm d}{\cal E}=f^1{\rm d}n_1+f^2{\rm d}n_2+\alpha{\rm d}\Delta^2 \label{eeosbfdefent} \]

see Comer, Novak & Prix. Log-enthalpies are then defined as $H_1 = \ln\left( \frac{f^1}{m_1c^2} \right)$, where $m_1$ is the mass of a particle of the first fluid. (same for $H_2$) The relative velocity $\Delta^2$ is defined as in Comer, Novak & Prix. It can be seen as the neutron velocity seen in the frame of protons (or vice-versa): $\Gamma_\Delta = -g_{\alpha\beta} u^\alpha_{\rm n} u^\beta_{\rm p}$ ()

Definition at line 160 of file eos_bifluid.h.

Constructor & Destructor Documentation

Eos_bifluid::Eos_bifluid (  )  [protected]

Standard constructor.

Definition at line 132 of file eos_bifluid.C.

Eos_bifluid::Eos_bifluid ( const char *  name_i,
double  mass1,
double  mass2 
) [explicit, protected]

Standard constructor with name and the two masses per particle.

Definition at line 138 of file eos_bifluid.C.

Eos_bifluid::Eos_bifluid ( const Eos_bifluid &  eos_i  )  [protected]

Copy constructor.

Definition at line 144 of file eos_bifluid.C.

Eos_bifluid::Eos_bifluid ( FILE *  fich  )  [protected]

Constructor from a binary file (created by the function sauve(FILE*) ).

This constructor is protected because any EOS construction from a binary file must be done via the function Eos_bifluid::eos_from_file(FILE*) .

Definition at line 150 of file eos_bifluid.C.

References fread_be(), m_1, m_2, and name.

Eos_bifluid::Eos_bifluid ( const char *  fname  )  [protected]

Constructor from a formatted file.

This constructor is protected because any EOS construction from a formatted file must be done via the function Eos_bifluid::eos_from_file(const char*).

The following fields have to be present in the config-file:\ name: [string] name of the EOS m_1, m_2: [double] baryon masses of the 2-fluids

Definition at line 162 of file eos_bifluid.C.

References m_1, m_2, name, and read_variable().

Eos_bifluid::~Eos_bifluid (  )  [virtual]

Destructor.

Definition at line 192 of file eos_bifluid.C.

Member Function Documentation

void Eos_bifluid::calcule ( const Cmp &  nbar1,
const Cmp &  nbar2,
const Cmp &  x2,
int  nzet,
int  l_min,
double(Eos_bifluid::*)(double, double, double) const   fait,
Cmp &  resu 
) const

General computational method for Cmp 's ($K^{ij}$'s).

Parameters:
nbar1 [input, unit $n_{\rm nuc} := 0.1 \ {\rm fm}^{-3}$] baryonic density field of fluid 1 at which the derivatives are to be computed.
nbar2 [input, unit $n_{\rm nuc} := 0.1 \ {\rm fm}^{-3}$] baryonic density field of fluid 2 at which the derivatives are to be computed
x2 [input, unit $n_{\rm nuc}^2c^2$] relative velocity$\times$both densities at which the derivative is to be computed
nzet [input] number of domains where resu is to be computed.
l_min [input] index of the innermost domain is which resu is to be computed [default value: 0]; resu is computed only in domains whose indices are in [l_min,l_min+nzet-1] . In the other domains, it is set to zero.
fait [input] pointer on the member function of class Eos_bifluid which performs the pointwise calculation.
resu [output] result of the computation.

Definition at line 619 of file eos_bifluid.C.

References Cmp::annule(), Valeur::c, Valeur::coef_i(), Tbl::get_etat(), Cmp::get_etat(), Cmp::get_mp(), Mg3d::get_nzone(), Tbl::get_taille(), Valeur::set_etat_c_qcq(), Tbl::set_etat_qcq(), Mtbl::set_etat_qcq(), Cmp::set_etat_qcq(), Cmp::set_etat_zero(), Tbl::t, Mtbl::t, and Cmp::va.

void Eos_bifluid::calcule_tout ( const Cmp &  ent1,
const Cmp &  ent2,
const Cmp &  delta2,
Cmp &  nbar1,
Cmp &  nbar2,
Cmp &  ener,
Cmp &  press,
int  nzet,
int  l_min = 0 
) const

General computational method for Cmp 's, it computes both baryon densities, energy and pressure profiles.

Parameters:
ent1 [input] the first log-enthalpy field $H_1$.
ent2 [input] the second log-enthalpy field $H_2$.
delta2 [input] the relative velocity field $\Delta^2 $
nbar1 [output] baryonic density of the first fluid
nbar2 [output] baryonic density of the second fluid [unit: $n_{\rm nuc} := 0.1 \ {\rm fm}^{-3}$]
ener [output] total energy density $\cal E$ of both fluids together
press [output] pressure p of both fluids together
nzet [input] number of domains where resu is to be computed.
l_min [input] index of the innermost domain is which resu is to be computed [default value: 0]; resu is computed only in domains whose indices are in [l_min,l_min+nzet-1] . In the other domains, it is set to zero.

Definition at line 246 of file eos_bifluid.C.

References Cmp::allocate_all(), Cmp::annule(), ener_nbar_p(), Cmp::get_etat(), Cmp::get_mp(), Mg3d::get_nzone(), identify(), nbar_ent_p(), nbar_ent_p1(), nbar_ent_p2(), press_nbar_p(), Cmp::set(), and Cmp::set_etat_zero().

Cmp Eos_bifluid::ener_ent ( const Cmp &  ent1,
const Cmp &  ent2,
const Cmp &  delta2,
int  nzet,
int  l_min = 0 
) const

Computes the total energy density from the log-enthalpy fields and the relative velocity.

Parameters:
ent1 [input, unit: $c^2$] log-enthalpy $H_1$
ent2 [input, unit: $c^2$] log-enthalpy $H_2$
delta2 [input, unit: $c^2$] relative velocity $\Delta^2$
nzet number of domains where the energy density is to be computed.
l_min index of the innermost domain is which the energy density is to be computed [default value: 0]; the energy density is computed only in domains whose indices are in [l_min,l_min+nzet-1] . In the other domains, it is set to zero.
Returns:
energy density field [unit: $\rho_{\rm nuc} c^2$], where $\rho_{\rm nuc} := 1.66\ 10^{17} \ {\rm kg/m}^3$

Definition at line 462 of file eos_bifluid.C.

References ener_nbar_p(), Cmp::get_etat(), Map::get_mg(), Cmp::get_mp(), Mg3d::get_nzone(), nbar_ent_p(), nbar_ent_p1(), and nbar_ent_p2().

virtual double Eos_bifluid::ener_nbar_p ( const double  nbar1,
const double  nbar2,
const double  delta2 
) const [pure virtual]

Computes the total energy density from the baryonic densities and the relative velocity.

(virtual function implemented in the derived classes).

Parameters:
nbar1 [input] baryonic density of the first fluid
nbar2 [input] baryonic density of the second fluid [unit: $n_{\rm nuc} := 0.1 \ {\rm fm}^{-3}$]
delta2 [input, unit: $c^2$] relative velocity $\Delta^2$
Returns:
energy density $\cal E$ [unit: $\rho_{\rm nuc} c^2$], where $\rho_{\rm nuc} := 1.66\ 10^{17} \ {\rm kg/m}^3$

Implemented in Eos_bf_poly, and Eos_bf_poly_newt.

Eos_bifluid * Eos_bifluid::eos_from_file ( const char *  fname  )  [static]

Construction of an EOS from a formatted file.

The following field has to be present:\ ident: [int] identifying the type of 2-fluid EOS 1 = relativistic polytropic EOS (class Eos_bf_poly ). \ 2 = Newtonian polytropic EOS (class Eos_bf_poly_newt ).

Definition at line 126 of file eos_bf_file.C.

References read_variable().

Eos_bifluid * Eos_bifluid::eos_from_file ( FILE *  fich  )  [static]

Construction of an EOS from a binary file.

The file must have been created by the function sauve(FILE*) .

Definition at line 94 of file eos_bf_file.C.

References fread_be().

virtual double Eos_bifluid::get_K11 ( const double  n1,
const double  n2,
const double  x 
) const [pure virtual]

Computes the derivative of the energy with respect to (baryonic density 1)$^2$.

(virtual function implemented in the derived classes).

Parameters:
n1 [input, unit $n_{\rm nuc} := 0.1 \ {\rm fm}^{-3}$] baryonic density of fluid 1 at which the derivative is to be computed
n2 [input, unit $n_{\rm nuc} := 0.1 \ {\rm fm}^{-3}$] baryonic density of fluid 2 at which the derivative is to be computed
x [input, unit $n_{\rm nuc}^2c^2$] relative Lorentz factor$\times$both densities at which the derivative is to be computed
Returns:
derivative $K^{11}=2\frac{\partial{\cal{E}}}{\partial{n_1^2}}$

Implemented in Eos_bf_poly, and Eos_bf_poly_newt.

virtual double Eos_bifluid::get_K12 ( const double  n1,
const double  n2,
const double  x 
) const [pure virtual]

Computes the derivative of the energy with respect to $x^2=n_1n_2\Gamma_\Delta$.

(virtual function implemented in the derived classes).

Parameters:
n1 [input, unit $n_{\rm nuc} := 0.1 \ {\rm fm}^{-3}$] baryonic density of fluid 1 at which the derivative is to be computed
n2 [input, unit $n_{\rm nuc} := 0.1 \ {\rm fm}^{-3}$] baryonic density of fluid 2 at which the derivative is to be computed
x [input, unit $n_{\rm nuc}^2c^2$] relative Lorentz factor$\times$both densities at which the derivative is to be computed
Returns:
derivative $K^{12}=\frac{\partial {\cal E}}{\partial (n_1n_2\Gamma_\Delta)}$

Implemented in Eos_bf_poly, and Eos_bf_poly_newt.

virtual double Eos_bifluid::get_K22 ( const double  n1,
const double  n2,
const double  x 
) const [pure virtual]

Computes the derivative of the energy/(baryonic density 2)$^2$.

(virtual function implemented in the derived classes).

Parameters:
n1 [input, unit $n_{\rm nuc} := 0.1 \ {\rm fm}^{-3}$] baryonic density of fluid 1 at which the derivative is to be computed
n2 [input, unit $n_{\rm nuc} := 0.1 \ {\rm fm}^{-3}$] baryonic density of fluid 2 at which the derivative is to be computed
x [input, unit $n_{\rm nuc}^2c^2$] relative Lorentz factor$\times$both densities at which the derivative is to be computed
Returns:
derivative $K^{22} = 2\frac{\partial {\cal E}}{\partial n_2^2}$

Implemented in Eos_bf_poly, and Eos_bf_poly_newt.

Cmp Eos_bifluid::get_Knn ( const Cmp &  nbar1,
const Cmp &  nbar2,
const Cmp &  x2,
int  nzet,
int  l_min = 0 
) const

Computes the derivatives of the energy/(baryonic density 1)$^2$.

Parameters:
nbar1 [input, unit $n_{\rm nuc} := 0.1 \ {\rm fm}^{-3}$] baryonic density field of fluid 1 at which the derivatives are to be computed
nbar2 [input, unit $n_{\rm nuc} := 0.1 \ {\rm fm}^{-3}$] baryonic density field of fluid 2 at which the derivatives are to be computed
x2 [input, unit $n_{\rm nuc}^2c^2$] relative velocity$\times$both densities at which the derivative is to be computed
nzet number of domains where the derivatives are to be computed.
l_min index of the innermost domain is which the derivatives are to be computed [default value: 0]; the derivatives are computed only in domains whose indices are in [l_min,l_min+nzet-1] . In the other domains, it is set to zero.
Returns:
derivative $K^{11}$ field (see get_K11 )

Definition at line 706 of file eos_bifluid.C.

References calcule(), get_K11(), and Cmp::get_mp().

Cmp Eos_bifluid::get_Knp ( const Cmp &  nbar1,
const Cmp &  nbar2,
const Cmp &  x2,
int  nzet,
int  l_min = 0 
) const

Computes the derivatives of the energy with respect to $x^2=n_1n_2\Gamma_\Delta^2$.

Parameters:
nbar1 [input, unit $n_{\rm nuc} := 0.1 \ {\rm fm}^{-3}$] baryonic density field of fluid 1 at which the derivatives are to be computed
nbar2 [input, unit $n_{\rm nuc} := 0.1 \ {\rm fm}^{-3}$] baryonic density field of fluid 2 at which the derivatives are to be computed
x2 [input, unit $n_{\rm nuc}^2c^2$] relative velocity$\times$both densities at which the derivative is to be computed
nzet number of domains where the derivatives are to be computed.
l_min index of the innermost domain is which the derivatives are to be computed [default value: 0]; the derivatives are computed only in domains whose indices are in [l_min,l_min+nzet-1] . In the other domains, it is set to zero.
Returns:
derivative $K^{12}$ field (see get_K12 )

Definition at line 717 of file eos_bifluid.C.

References calcule(), get_K12(), and Cmp::get_mp().

Cmp Eos_bifluid::get_Kpp ( const Cmp &  nbar1,
const Cmp &  nbar2,
const Cmp &  x2,
int  nzet,
int  l_min = 0 
) const

Computes the derivatives of the energy/(baryonic density 2)$^2$.

Parameters:
nbar1 [input, unit $n_{\rm nuc} := 0.1 \ {\rm fm}^{-3}$] baryonic density field of fluid 1 at which the derivatives are to be computed
nbar2 [input, unit $n_{\rm nuc} := 0.1 \ {\rm fm}^{-3}$] baryonic density field of fluid 2 at which the derivatives are to be computed
x2 [input, unit $n_{\rm nuc}^2c^2$] relative velocity$\times$both densities at which the derivative is to be computed
nzet number of domains where the derivatives are to be computed.
l_min index of the innermost domain is which the derivatives are to be computed [default value: 0]; the derivatives are computed only in domains whose indices are in [l_min,l_min+nzet-1] . In the other domains, it is set to zero.
Returns:
derivative $K^{22}$ field (see get_K12 )

Definition at line 728 of file eos_bifluid.C.

References calcule(), get_K22(), and Cmp::get_mp().

double Eos_bifluid::get_m1 (  )  const [inline]

Return the individual particule mass $m_1$.

[unit: $m_B = 1.66\ 10^{-27} \ {\rm kg}$].

Definition at line 234 of file eos_bifluid.h.

References m_1.

double Eos_bifluid::get_m2 (  )  const [inline]

Return the individual particule mass $m_2$.

[unit: $m_B = 1.66\ 10^{-27} \ {\rm kg}$].

Definition at line 240 of file eos_bifluid.h.

References m_2.

string Eos_bifluid::get_name (  )  const [inline]

Returns the EOS name.

Definition at line 224 of file eos_bifluid.h.

References name.

virtual int Eos_bifluid::identify (  )  const [pure virtual]

Returns a number to identify the sub-classe of Eos_bifluid the object belongs to.

Implemented in Eos_bf_poly, and Eos_bf_poly_newt.

void Eos_bifluid::nbar_ent ( const Cmp &  ent1,
const Cmp &  ent2,
const Cmp &  delta2,
Cmp &  nbar1,
Cmp &  nbar2,
int  nzet,
int  l_min = 0 
) const

Computes both baryon density fields from the log-enthalpy fields and the relative velocity.

Parameters:
ent1 [input, unit: $c^2$] log-enthalpy $H_1$
ent2 [input, unit: $c^2$] log-enthalpy $H_2$
delta2 [input, unit: $c^2$] relative velocity $\Delta^2$
nbar1 [output] baryonic density of the first fluid
nbar2 [output] baryonic density of the second fluid [unit: $n_{\rm nuc} := 0.1 \ {\rm fm}^{-3}$]
nzet number of domains where the baryon density is to be computed.
l_min index of the innermost domain is which the baryon density is to be computed [default value: 0]; the baryon density is computed only in domains whose indices are in [l_min,l_min+nzet-1] . In the other domains, it is set to zero.

Definition at line 374 of file eos_bifluid.C.

References Cmp::allocate_all(), Cmp::annule(), Cmp::get_etat(), Cmp::get_mp(), Mg3d::get_nzone(), nbar_ent_p(), nbar_ent_p1(), nbar_ent_p2(), Cmp::set(), and Cmp::set_etat_zero().

virtual bool Eos_bifluid::nbar_ent_p ( const double  ent1,
const double  ent2,
const double  delta2,
double &  nbar1,
double &  nbar2 
) const [pure virtual]

Computes both baryon densities from the log-enthalpies (virtual function implemented in the derived classes).

Parameters:
ent1 [input, unit: $c^2$] log-enthalpy $H_1$
ent2 [input, unit: $c^2$] log-enthalpy $H_2$
delta2 [input, unit: $c^2$] relative velocity $\Delta^2$
nbar1 [output] baryonic density of the first fluid
nbar2 [output] baryonic density of the second fluid [unit: $n_{\rm nuc} := 0.1 \ {\rm fm}^{-3}$]
Returns:
true if the 2-fluids model is correct, false otherwise.

Implemented in Eos_bf_poly, and Eos_bf_poly_newt.

virtual double Eos_bifluid::nbar_ent_p1 ( const double  ent1  )  const [pure virtual]

Computes baryon density out of the log-enthalpy asuming that only fluid 1 is present (virtual function implemented in the derived classes).

Parameters:
ent1 [input, unit: $c^2$] log-enthalpy $H_1$
Returns:
nbar1 baryonic density of the first fluid

Implemented in Eos_bf_poly, and Eos_bf_poly_newt.

virtual double Eos_bifluid::nbar_ent_p2 ( const double  ent2  )  const [pure virtual]

Computes baryon density out of the log-enthalpy assuming that only fluid 2 is present (virtual function implemented in the derived classes).

Parameters:
ent2 [input, unit: $c^2$] log-enthalpy $H_1$
Returns:
nbar1 baryonic density of the first fluid

Implemented in Eos_bf_poly, and Eos_bf_poly_newt.

virtual bool Eos_bifluid::operator!= ( const Eos_bifluid &   )  const [pure virtual]

Comparison operator (difference).

void Eos_bifluid::operator= ( const Eos_bifluid &  eosi  ) 

Assignment to another Eos_bifluid.

Reimplemented in Eos_bf_poly, and Eos_bf_poly_newt.

Definition at line 198 of file eos_bifluid.C.

References m_1, m_2, and name.

virtual bool Eos_bifluid::operator== ( const Eos_bifluid &   )  const [pure virtual]

Comparison operator (egality).

virtual ostream& Eos_bifluid::operator>> ( ostream &   )  const [protected, pure virtual]

Operator >>.

Implemented in Eos_bf_poly, and Eos_bf_poly_newt.

Cmp Eos_bifluid::press_ent ( const Cmp &  ent1,
const Cmp &  ent2,
const Cmp &  delta2,
int  nzet,
int  l_min = 0 
) const

Computes the pressure from the log-enthalpy fields and the relative velocity.

Parameters:
ent1 [input, unit: $c^2$] log-enthalpy $H_1$
ent2 [input, unit: $c^2$] log-enthalpy $H_2$
delta2 [input, unit: $c^2$] relative velocity $\Delta^2$
nzet number of domains where the pressure is to be computed.
l_min index of the innermost domain is which the pressure is to be computed [default value: 0]; the pressure is computed only in domains whose indices are in [l_min,l_min+nzet-1] . In the other domains, it is set to zero.
Returns:
pressure field [unit: $\rho_{\rm nuc} c^2$], where $\rho_{\rm nuc} := 1.66\ 10^{17} \ {\rm kg/m}^3$

Definition at line 542 of file eos_bifluid.C.

References Cmp::get_etat(), Map::get_mg(), Cmp::get_mp(), Mg3d::get_nzone(), nbar_ent_p(), nbar_ent_p1(), nbar_ent_p2(), and press_nbar_p().

virtual double Eos_bifluid::press_nbar_p ( const double  nbar1,
const double  nbar2,
const double  delta2 
) const [pure virtual]

Computes the pressure from the baryonic densities and the relative velocity.

(virtual function implemented in the derived classes).

Parameters:
nbar1 [input] baryonic density of the first fluid
nbar2 [input] baryonic density of the second fluid [unit: $n_{\rm nuc} := 0.1 \ {\rm fm}^{-3}$]
delta2 [input, unit: $c^2$] relative velocity $\Delta^2$
Returns:
pressure p [unit: $\rho_{\rm nuc} c^2$], where $\rho_{\rm nuc} := 1.66\ 10^{17} \ {\rm kg/m}^3$

Implemented in Eos_bf_poly, and Eos_bf_poly_newt.

void Eos_bifluid::sauve ( FILE *  fich  )  const [virtual]

Save in a file.

Reimplemented in Eos_bf_poly, and Eos_bf_poly_newt.

Definition at line 211 of file eos_bifluid.C.

References fwrite_be(), identify(), m_1, m_2, and name.

virtual Eos* Eos_bifluid::trans2Eos (  )  const [pure virtual]

Makes a translation from Eos_bifluid to Eos .

(virtual function implemented in the derived classes).

This is only useful for the construction of a Et_rot_bifluid star and ought not to be used in other situations.

Parameters:
relat [input] Relativistic EOS or not.

Implemented in Eos_bf_poly, and Eos_bf_poly_newt.

Friends And Related Function Documentation

ostream& operator<< ( ostream &  ,
const Eos_bifluid &   
) [friend]

Display.

Member Data Documentation

double Eos_bifluid::m_1 [protected]

Individual particle mass $m_1$ [unit: $m_B = 1.66\ 10^{-27} \ {\rm kg}$].

Definition at line 171 of file eos_bifluid.h.

double Eos_bifluid::m_2 [protected]

Individual particle mass $m_2$ [unit: $m_B = 1.66\ 10^{-27} \ {\rm kg}$].

Definition at line 176 of file eos_bifluid.h.

string Eos_bifluid::name [protected]

EOS name.

Definition at line 166 of file eos_bifluid.h.

The documentation for this class was generated from the following files:
Generated on 7 Oct 2014 for LORENE by  doxygen 1.6.1