C3H6flux comp2.genext2(D_C3H6*comp2.C3H6py*y/rp) Boundary flux C3H6 COflux comp2.genext2(D_CO*comp2.COpy*y/rp) Boundary flux CO CO2flux comp2.genext2(D_CO2*comp2.CO2py*y/rp) Boundary flux CO2 H2Oflux comp2.genext2(D_H2O*comp2.H2Opy*y/rp) Boundary flux H2O O2flux comp2.genext2(D_O2*comp2.O2py*y/rp) Boundary flux O2