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[Examples] Fix refinement check in ic_engine.py

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The previous refinement check didn't work because the loop never
reached n2 == 4. Replace is checks with == checks.
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CyberDrudge 2019-01-11 03:14:00 +05:30 • committed by Bryan W. Weber
parent 05eaa0a5e4
commit d9b95b2efb
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1 changed files with 6 additions and 3 deletions
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9
interfaces/cython/cantera/examples/reactors/ic_engine.py
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@ -141,16 +141,19 @@ for n1, t_i in enumerate(t):
injector_mfc.set_mass_flow_rate(0) injector_mfc.set_mass_flow_rate(0)
# perform time integration, refine time step if necessary # perform time integration, refine time step if necessary
solved = False
for n2 in range(4): for n2 in range(4):
if n2 is 4:
raise 'Error: Refinement limit reached'
try: try:
sim.advance(t_i) sim.advance(t_i)
solved = True
break
except ct.CanteraError: except ct.CanteraError:
sim.set_max_time_step(1e-6 * 10. ** -n2) sim.set_max_time_step(1e-6 * 10. ** -n2)
n_last_refinement = n1 n_last_refinement = n1
if not solved:
raise ct.CanteraError('Refinement limit reached')
# coarsen time step if too long ago # coarsen time step if too long ago
if n1 - n_last_refinement is n_wait_coarsening: if n1 - n_last_refinement == n_wait_coarsening:
sim.set_max_time_step(1e-5) sim.set_max_time_step(1e-5)
# write output data # write output data