2                    ! ipea: =0 -> no PEA; =1 -> PEA_1 -> =2 -> PEA_2
'CH4'                ! name of the fuel species
1 4 0                ! number of carbon and hydrogen atoms in fuel
'C'                  ! atom retained for mixture fraction calculation
'N2'  0.d0 0.767d0   !
'O2'  0.d0 0.233d0   !
'H2O' 0.d0 0.d0      !
'CO2' 0.d0 0.d0      !
'CO'  0.d0 0.d0      !
'CH4' 1.d0 0.d0      ! species, mass fractions in fuel tank and oxydizer tank

-- PEA on fuel oxidation reaction only -------------------------------------------------------
-- f=f1+f2
-- f1 = 1/2*{1+tanh[(phi0-phi)/sigma0]}
-- f2 = B*1/4*{1+tanh[(phi-phi1)/sigma1]}*{1+tanh[(phi2-phi)/sigma2]}
PEA_1
0.00d0               ! phi0
0.00d0               ! sigma0
0.00d0               ! B
0.00d0               ! phi1
0.00d0               ! sigma1
0.00d0               ! phi2
0.00d0               ! sigma2


-- PEA on fuel oxidation (1) and CO-CO2 equilibrium (2) reactions ---------------------------
-- f1 = 2/[{1+tanh[(phi0,1-phi)/sigma0,1]}+B1{1+tanh[(phi-phi1,1)/sigma1,1]}+C1{1+tanh[(phi-phi2,1)/sigma2,1]}]
-- f2 = 0.5*{1+tanh[(phi0,2-phi)/sigma0,2]}+B2/2*{1+tanh[(phi-phi1,2)/sigma1,2]}+C2/2*{1+tanh[(phi-phi2,2)/sigma2,2]}*{1+tanh[(phi3,2-phi)/sigma3,2]}
PEA_2
1.10d0               ! phi01
0.09d0               ! sigma01
0.37d0               ! B1
1.13d0               ! phi11
0.03d0               ! sigma11
6.7d0                ! C1
1.6d0               ! phi21
0.22d0               ! sigma21
0.95d0               ! phi02
0.08d0               ! sigma02
2.5e-5               ! B2
1.3d0                ! phi12
0.04d0               ! sigma12
0.0087d0             ! C2
1.2d0                ! phi22
0.04d0               ! sigma22
1.2d0                ! phi32
0.05d0               ! sigma32