################################################################## ## ## 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 #################################################