def sensitivity_analysis(self,
initial_mole_fractions,
sensitive_species,
T,
P,
termination_time,
sensitivity_threshold=1e-3,
number=10,
fileformat='.png'):
"""
Run sensitivity analysis using the RMG solver in a single ReactionSystem object
initial_mole_fractions is a dictionary with Species objects as keys and mole fraction initial conditions
sensitive_species is a list of sensitive Species objects
number is the number of top species thermo or reaction kinetics desired to be plotted
"""
from rmgpy.solver import SimpleReactor, TerminationTime
from rmgpy.quantity import Quantity
from rmgpy.rmg.listener import SimulationProfileWriter, SimulationProfilePlotter
from rmgpy.rmg.settings import ModelSettings, SimulatorSettings
T = Quantity(T)
P = Quantity(P)
termination = [TerminationTime(Quantity(termination_time))]
reaction_system = SimpleReactor(
T=T,
P=P,
initial_mole_fractions=initial_mole_fractions,
termination=termination,
sensitive_species=sensitive_species,
sensitivity_threshold=sensitivity_threshold)
# Create the csv worksheets for logging sensitivity
util.make_output_subdirectory(self.output_directory, 'solver')
sens_worksheet = []
reaction_system_index = 0
for spec in reaction_system.sensitive_species:
csvfile_path = os.path.join(
self.output_directory, 'solver',
'sensitivity_{0}_SPC_{1}.csv'.format(reaction_system_index + 1,
spec.index))
sens_worksheet.append(csvfile_path)
reaction_system.attach(
SimulationProfileWriter(self.output_directory,
reaction_system_index, self.species_list))
reaction_system.attach(
SimulationProfilePlotter(self.output_directory,
reaction_system_index, self.species_list))
simulator_settings = SimulatorSettings() # defaults
model_settings = ModelSettings() # defaults
model_settings.tol_move_to_core = 0.1
model_settings.tol_interrupt_simulation = 1.0
model_settings.tol_keep_in_edge = 0.0
reaction_system.simulate(
core_species=self.species_list,
core_reactions=self.reaction_list,
edge_species=[],
edge_reactions=[],
surface_species=[],
surface_reactions=[],
model_settings=model_settings,
simulator_settings=simulator_settings,
sensitivity=True,
sens_worksheet=sens_worksheet,
)
plot_sensitivity(self.output_directory,
reaction_system_index,
reaction_system.sensitive_species,
number=number,
fileformat=fileformat)
def simulate(rmg, diffusion_limited=True):
"""
Simulate the RMG job and run the sensitivity analysis if it is on, generating
output csv files
diffusion_limited=True implies that if it is a liquid reactor diffusion limitations will be enforced
otherwise they will not be in a liquid reactor
"""
util.make_output_subdirectory(rmg.output_directory, 'solver')
for index, reaction_system in enumerate(rmg.reaction_systems):
if reaction_system.sensitive_species:
logging.info(
'Conducting simulation and sensitivity analysis of reaction system %s...'
% (index + 1))
if reaction_system.sensitive_species == ['all']:
reaction_system.sensitive_species = rmg.reaction_model.core.species
else:
logging.info('Conducting simulation of reaction system %s...' %
(index + 1))
reaction_system.attach(
SimulationProfileWriter(rmg.output_directory, index,
rmg.reaction_model.core.species))
reaction_system.attach(
SimulationProfilePlotter(rmg.output_directory, index,
rmg.reaction_model.core.species))
sens_worksheet = []
for spec in reaction_system.sensitive_species:
csvfile_path = os.path.join(
rmg.output_directory, 'solver',
'sensitivity_{0}_SPC_{1}.csv'.format(index + 1, spec.index))
sens_worksheet.append(csvfile_path)
pdep_networks = []
for source, networks in rmg.reaction_model.network_dict.items():
pdep_networks.extend(networks)
model_settings = ModelSettings(tol_keep_in_edge=0,
tol_move_to_core=1,
tol_interrupt_simulation=1)
simulator_settings = rmg.simulator_settings_list[-1]
if isinstance(reaction_system, LiquidReactor):
if diffusion_limited:
rmg.load_database()
solvent_data = rmg.database.solvation.get_solvent_data(
rmg.solvent)
diffusion_limiter.enable(solvent_data, rmg.database.solvation)
# Store constant species indices
if reaction_system.const_spc_names is not None:
reaction_system.get_const_spc_indices(
rmg.reaction_model.core.species)
elif rmg.uncertainty is not None:
rmg.verbose_comments = True
rmg.load_database()
reaction_system.simulate(
core_species=rmg.reaction_model.core.species,
core_reactions=rmg.reaction_model.core.reactions,
edge_species=rmg.reaction_model.edge.species,
edge_reactions=rmg.reaction_model.edge.reactions,
surface_species=[],
surface_reactions=[],
pdep_networks=pdep_networks,
sensitivity=True if reaction_system.sensitive_species else False,
sens_worksheet=sens_worksheet,
model_settings=model_settings,
simulator_settings=simulator_settings,
)
if reaction_system.sensitive_species:
plot_sensitivity(rmg.output_directory, index,
reaction_system.sensitive_species)
rmg.run_uncertainty_analysis()