Difference between revisions of "Multi-inlet CH 4/Air flame with scheme GRI12"
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0.00365571 H2O2 | 0.00365571 H2O2 | ||
0.00537274 C2H4 | 0.00537274 C2H4 | ||
| − | 0.00537274 C2H5 | + | 0.00537274 C2H5 |
0.00543792 CH2(S) | 0.00543792 CH2(S) | ||
0.00598963 CH2 | 0.00598963 CH2 | ||
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From a detailed 32 species scheme, we obtain reduced schemes (31 to 11 species). and we choose the one with 14 species for the next step. With 13 species, the trajectories of the targets and the temperature are too different from the detailed ones to easily optimised. | From a detailed 32 species scheme, we obtain reduced schemes (31 to 11 species). and we choose the one with 14 species for the next step. With 13 species, the trajectories of the targets and the temperature are too different from the detailed ones to easily optimised. | ||
| − | [[File:CO2_13species.jpg]]. [[File: | + | [[File:CO2_13species.jpg]]. [[File:CO2_14species.jpg]] |
=== QSS Step === | === QSS Step === | ||
Revision as of 10:43, 21 June 2017
Contents
Objectives
The Stochastic_GRI12 test case shows a reduction of the GRI1.2 scheme for a 0D 2-inlet configuration. Started with 32 species and 177 reactions, we reduce to -- species and -- reactions.
Principle
Key parameters
Results
DRGEP Step
While running the DRGEP species step, your terminal should display the following information :
Reading initial mechanism "mechanisms/gri12.xml" with description "gri12" ----------> OK Number of species: 32 Number of reactions: 177 Set the mole fraction of inlet 0 Set the mole fraction of inlet 1 Set the mole fraction of inlet 2
Composition to enter For the equilibrium computation to get the Burned gases Compo_H_mixed 334274 X_O2: 0.16931 X_H2O: 0.019848 X_CH4: 0.0418227 X_CO2: 0.0193304 X_N2: 0.749689 T_mixed 1063.63 Nb particles 0 500 Nb particles 1 17 Nb particles 2 200 Nmix 35 Set the mole fraction of inlet 0 Set the mole fraction of inlet 1 Set the mole fraction of inlet 2
followed by the the species associated with their rank :
0 AR 2.3181e-16 C 2.44619e-09 CH 2.59722e-09 HCCOH 5.68614e-09 C2H 1.49031e-08 CH2CO 1.27776e-07 C2H2 2.68843e-07 HCCO 3.69712e-05 C2H3 7.25527e-05 CH2OH 0.00365571 H2O2 0.00537274 C2H4 0.00537274 C2H5 0.00543792 CH2(S) 0.00598963 CH2 0.0100589 CH3OH 0.0179344 H2 0.0199904 HCO 0.0576166 O 0.145908 CH3O 0.342307 H 0.373973 C2H6 0.460535 OH 0.483807 CH2O 0.999998 HO2 0.999999 CH3 1 O2 1 H2O 1 CH4 1 CO 1 CO2 1 N2
From a detailed 32 species scheme, we obtain reduced schemes (31 to 11 species). and we choose the one with 14 species for the next step. With 13 species, the trajectories of the targets and the temperature are too different from the detailed ones to easily optimised.
File:CO2 13species.jpg. File:CO2 14species.jpg
