134 lines
6.8 KiB
Python
Executable File
134 lines
6.8 KiB
Python
Executable File
|
|
##################################################################
|
|
##
|
|
## Update puncture parameters from TwoPuncture output
|
|
## Author: Xiaoqu
|
|
## 2024/12/04
|
|
##
|
|
##################################################################
|
|
|
|
import AMSS_NCKU_Input as input_data
|
|
import numpy
|
|
import os
|
|
|
|
##################################################################
|
|
|
|
|
|
|
|
##################################################################
|
|
|
|
def read_TwoPuncture_Output(Output_File_directory):
|
|
|
|
dimensionless_mass_BH = numpy.zeros( input_data.puncture_number )
|
|
bare_mass_BH = numpy.zeros( input_data.puncture_number ) ## initialize bare mass for each black hole
|
|
position_BH = numpy.zeros( (input_data.puncture_number, 3) ) ## initialize initial position for each black hole
|
|
momentum_BH = numpy.zeros( (input_data.puncture_number, 3) ) ## initialize momentum for each black hole
|
|
angular_momentum_BH = numpy.zeros( (input_data.puncture_number, 3) ) ## initialize spin angular momentum for each black hole
|
|
|
|
# Read TwoPuncture output file
|
|
data = numpy.loadtxt( os.path.join(Output_File_directory, "puncture_parameters_new.txt") )
|
|
# Ensure data is parsed as a 1-D array
|
|
data = data.reshape(-1)
|
|
|
|
for i in range(input_data.puncture_number):
|
|
|
|
## Read parameters for the first two punctures from TwoPuncture output
|
|
## For additional punctures, read parameters from the input file
|
|
if i<2:
|
|
bare_mass_BH[i] = data[12*i]
|
|
dimensionless_mass_BH[i] = data[12*i+1]
|
|
position_BH[i] = [ data[12*i+3], data[12*i+4], data[12*i+5] ]
|
|
momentum_BH[i] = [ data[12*i+6], data[12*i+7], data[12*i+8] ]
|
|
angular_momentum_BH[i] = [ data[12*i+9], data[12*i+10], data[12*i+11] ]
|
|
else:
|
|
dimensionless_mass_BH[i] = input_data.parameter_BH[i,0]
|
|
bare_mass_BH[i] = input_data.parameter_BH[i,0]
|
|
position_BH[i] = input_data.position_BH[i]
|
|
momentum_BH[i] = input_data.momentum_BH[i]
|
|
## Read angular momentum according to symmetry
|
|
if ( input_data.Symmetry == "equatorial-symmetry" ):
|
|
angular_momentum_BH[i] = [ 0.0, 0.0, (input_data.parameter_BH[i,0]**2) * input_data.parameter_BH[i,2] ]
|
|
elif ( input_data.Symmetry == "no-symmetry" ):
|
|
angular_momentum_BH[i] = (dimensionless_mass_BH[i]**2) * input_data.dimensionless_spin_BH[i]
|
|
|
|
return bare_mass_BH, dimensionless_mass_BH, position_BH, momentum_BH, angular_momentum_BH
|
|
|
|
##################################################################
|
|
|
|
|
|
##################################################################
|
|
|
|
## Append the computed puncture information into the AMSS-NCKU input file
|
|
|
|
def append_AMSSNCKU_BSSN_input(File_directory, TwoPuncture_File_directory):
|
|
|
|
charge_Q_BH = numpy.zeros( input_data.puncture_number ) ## initialize charge for each black hole
|
|
|
|
## If using Ansorg-TwoPuncture to solve the initial-data problem, read
|
|
## bare masses, positions and angular momenta from TwoPuncture output
|
|
if (input_data.Initial_Data_Method == "Ansorg-TwoPuncture" ):
|
|
bare_mass_BH, dimensionless_mass_BH, position_BH, momentum_BH, angular_momentum_BH = read_TwoPuncture_Output(TwoPuncture_File_directory)
|
|
# set charge for each black hole
|
|
for i in range(input_data.puncture_number):
|
|
charge_Q_BH[i] = dimensionless_mass_BH[i] * input_data.parameter_BH[i,1]
|
|
|
|
## If using another method for initial data, read parameters directly from input
|
|
else:
|
|
position_BH = input_data.position_BH
|
|
momentum_BH = input_data.momentum_BH
|
|
## angular_momentum_BH = input_data.angular_momentum_BH
|
|
angular_momentum_BH = numpy.zeros( (input_data.puncture_number, 3) ) ## initialize spin angular momentum array
|
|
mass_BH = numpy.zeros( input_data.puncture_number ) ## initialize mass array
|
|
|
|
## Set charge and spin angular momentum for each puncture
|
|
for i in range(input_data.puncture_number):
|
|
|
|
if ( input_data.Symmetry == "octant-symmetry" ):
|
|
mass_BH[i] = input_data.parameter_BH[i,0]
|
|
charge_Q_BH[i] = mass_BH[i]* input_data.parameter_BH[i,1]
|
|
angular_momentum_BH[i] = [ 0.0, 0.0, (mass_BH[i]**2) * input_data.parameter_BH[i,2] ]
|
|
elif ( input_data.Symmetry == "equatorial-symmetry" ):
|
|
mass_BH[i] = input_data.parameter_BH[i,0]
|
|
charge_Q_BH[i] = mass_BH[i]* input_data.parameter_BH[i,1]
|
|
angular_momentum_BH[i] = [ 0.0, 0.0, (mass_BH[i]**2) * input_data.parameter_BH[i,2] ]
|
|
elif ( input_data.Symmetry == "no-symmetry" ):
|
|
mass_BH[i] = input_data.parameter_BH[i,0]
|
|
angular_momentum_BH[i] = (mass_BH[i]**2) * input_data.dimensionless_spin_BH[i]
|
|
charge_Q_BH[i] = mass_BH[i] * input_data.parameter_BH[i,1]
|
|
|
|
file1 = open( os.path.join(input_data.File_directory, "AMSS-NCKU.input"), "a") ## open file in append mode
|
|
|
|
## Output BSSN related settings
|
|
|
|
print( file=file1 )
|
|
print( "BSSN::chitiny = 1e-5", file=file1 )
|
|
print( "BSSN::time refinement start from level = ", input_data.refinement_level, file=file1 )
|
|
print( "BSSN::BH_num = ", input_data.puncture_number, file=file1 )
|
|
|
|
for i in range(input_data.puncture_number):
|
|
|
|
if (input_data.Initial_Data_Method == "Ansorg-TwoPuncture" ):
|
|
print( f"BSSN::Mass[{i}] = { bare_mass_BH[i] } ", file=file1 )
|
|
else:
|
|
print( f"BSSN::Mass[{i}] = { mass_BH[i] } ", file=file1 )
|
|
|
|
print( f"BSSN::Qchar[{i}] = { charge_Q_BH[i] } ", file=file1 )
|
|
print( f"BSSN::Porgx[{i}] = { position_BH[i,0] } ", file=file1 )
|
|
print( f"BSSN::Porgy[{i}] = { position_BH[i,1] } ", file=file1 )
|
|
print( f"BSSN::Porgz[{i}] = { position_BH[i,2] } ", file=file1 )
|
|
print( f"BSSN::Pmomx[{i}] = { momentum_BH[i,0] } ", file=file1 )
|
|
print( f"BSSN::Pmomy[{i}] = { momentum_BH[i,1] } ", file=file1 )
|
|
print( f"BSSN::Pmomz[{i}] = { momentum_BH[i,2] } ", file=file1 )
|
|
print( f"BSSN::Spinx[{i}] = { angular_momentum_BH[i,0] } ", file=file1 )
|
|
print( f"BSSN::Spiny[{i}] = { angular_momentum_BH[i,1] } ", file=file1 )
|
|
print( f"BSSN::Spinz[{i}] = { angular_momentum_BH[i,2] } ", file=file1 )
|
|
|
|
print( file=file1 )
|
|
|
|
file1.close()
|
|
|
|
return
|
|
|
|
#################################################
|
|
|