Shock & Detonation Toolbox
GRI 3.0 Mechanism Results

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This study examines the chemical basis for simplified chemical reaction models. As a part of this study, we have examined the question of the existence of a temperature cutoff which has been proposed as the basis for formulating previous 3-step models. More details about this study are given in our 2005 Combustion Institute Sectional paper.

Detailed and Simplified Chemical Reaction Mechanisms for Detonation Simulation

Below are results of constant volume explosion simulations for hydrogen, methane, and ethane using the GRI 3.0 mechanism.

Stoichiometric Hydrogen-Air

Tecplot file: h2air_gri30_ArrheniusSurface.plt

Reduced Effective Activation Energy	Ratio: Induction Time/Energy Release Time

Contour Range: 6-42 Contour Increment: 2	Contour Range: 1000-12000 Contour Increment: 1000

Lean Hydrogen-Air (Phi = 0.8)

Tecplot file: h2air8_gri30_ArrheniusSurface.plt

Reduced Effective Activation Energy

Contour Range: 6-44
Contour Increment: 2

Rich Hydrogen-Air (Phi = 3.0)

Tecplot file: h2air30_gri30_ArrheniusSurface.plt

Reduced Effective Activation Energy

Contour Range: 6-30
Contour Increment: 2

Stoichiometric Methane-Air

Tecplot file: ch4air_gri30_ArrheniusSurface.plt

Reduced Effective Activation Energy	Ratio: Induction Time/Energy Release Time

Contour Range: 12.6-15.6 Contour Increment: 0.2	Contour Range: 2000-22000 Contour Increment: 2000

Stoichiometric Ethane-Air

Tecplot file: c2h6air_gri30_ArrheniusSurface.plt

Reduced Effective Activation Energy	Ratio: Induction Time/Energy Release Time

Contour Range: 13-25 Contour Increment: 1	Contour Range: 2000-24000 Contour Increment: 2000