| Description of target | Sensitivity diagram | Prediction of GRI-Mech 3.0 |

DESCRIPTION OF THE TARGET

Target IG.1a: Shock tube ignition delay

Mixture: CH4-O2-Ar (9.1%-18.2%-72.7%), phi = 1.0, P = 1.8 atm, T = 1500 K

Reference: Seery, D.J., and Bowman, C.T., 'An Experimental and Analytical Study of Methane Oxidation Behind Shock Waves,' (1970) Combust. Flame 14, 37.

TARGET VALUES
Experimental
(microsec)		 GRI-Mech 2.11 Trial Mech GRI-Mech 3.0
800 725 1038 666

SENSITIVITY DIAGRAMS

The sensitivity spectra shown below were computed with a trial reaction mechanism composed of a set of 322 elementary reactions of 53 species.

Sensitivity coefficients with respect to rate coefficients Sensitivity coefficients with respect to heats of formation

Other targets