ID_Bin_BH

Erik Schnetter <schnetter@cct.lsu.edu>

November 24 2009

Abstract

1 Introduction

2 Physical System

3 Numerical Implementation

4 Using This Thorn

4.1 Obtaining This Thorn

4.2 Basic Usage

4.3 Special Behaviour

4.4 Interaction With Other Thorns

4.5 Examples

4.6 Support and Feedback

5 History

5.1 Thorn Source Code

5.2 Thorn Documentation

5.3 Acknowledgements

References

6 Parameters

eos_precision
 Scope: private REAL
Description: precision of EOS calculations in EOSOmni
Range Default: 1.e-8
0:*
any positive number

eos_table
 Scope: private STRING
Description: Initial data EOS identifyer
Range Default: 2D_Polytrope
Any valid EOS name in EOSOmni

eos_table_filepath
 Scope: private STRING
Description: Directory containing the EOS file used to generate the initial data
Range Default: (none)
Directory name, default (empty string) is ’do not tell Lorene to overwrite info found in Lorene data’

filename
 Scope: private STRING
Description: Input file name containing LORENE data
Range Default: (none)
Any filename, potentially including path

recalculate_eps
 Scope: private BOOLEAN
Description: Should eps be recalculated (default), or taken from Lorene data?
Default: yes

initial_hydro
 Scope: shared from HYDROBASE KEYWORD
Extends ranges:
Meudon_Bin_NS
LORENE Binary Neutron Star initial data

7 Interfaces

General

Implements:

meudon_bin_ns

Inherits:

grid

summationbyparts

admbase

hydrobase

Grid Variables

7.0.1 PUBLIC GROUPS

  Group Names     Variable Names   Details    
init_eos_key init_eos_key compact 0
description Initial data eos handle for EOS_Omni
dimensions 0
distribution CONSTANT
group type SCALAR
timelevels 1
variable type INT

8 Schedule

This section lists all the variables which are assigned storage by thorn EinsteinInitialData/Meudon_Bin_NS. Storage can either last for the duration of the run (Always means that if this thorn is activated storage will be assigned, Conditional means that if this thorn is activated storage will be assigned for the duration of the run if some condition is met), or can be turned on for the duration of a schedule function.

Storage

 

  Conditional:
  init_eos_key
   

Scheduled Functions

HydroBase_Initial (conditional)

  meudon_bin_ns_initialise

  set up binary neutron star initial data

 

  Language: c
  Reads: grid::coordinates(everywhere)
  Type: function
  Writes: init_eos_key(everywhere)
    admbase::metric(everywhere)
    admbase::shift(everywhere)
    admbase::dtshift(everywhere)
    admbase::curv(everywhere)
    admbase::alp(everywhere)
    admbase::dtalp(everywhere)
    hydrobase::eps(everywhere)
    hydrobase::rho(everywhere)
    hydrobase::vel(everywhere)
    hydrobase::press(everywhere)
    hydrobase::y_e(everywhere)
    hydrobase::temperature(everywhere)