[Samples] Explicitly set transport model to 'Mix' for clarity

interfaces/cython/cantera/examples/onedim/adiabatic_flame.py

@@ -33,6 +33,7 @@ f.show_solution()
 
 # Solve with the energy equation disabled
 f.energy_enabled = False
+f.transport_model = 'Mix'
 f.set_max_jac_age(10, 10)
 f.set_time_step(1e-5, [2, 5, 10, 20])
 f.solve(loglevel=loglevel, refine_grid=False)

interfaces/cython/cantera/examples/onedim/burner_flame.py

@@ -31,6 +31,7 @@ f.flame.set_transient_tolerances(default=tol_ts)
 f.show_solution()
 
 f.energy_enabled = False
+f.transport_model = 'Mix'
 f.set_max_jac_age(10, 10)
 f.solve(loglevel, refine_grid=False)
 f.save('h2_burner_flame.xml', 'no_energy',

interfaces/cython/cantera/examples/onedim/flame_fixed_T.py

@@ -95,6 +95,7 @@ f.show_solution()
 f.energy_enabled = False
 
 # first solve the flame with mixture-averaged transport properties
+f.transport_model = 'Mix'
 f.set_refine_criteria(ratio=3.0, slope=0.3, curve=1)
 f.set_max_jac_age(50, 50)
 f.set_time_step(1.0e-5, [1, 2, 5, 10, 20])