Shock & Detonation Toolbox
GRI 3.0 Mechanism Results


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


Stoichiometric Hydrogen-Air

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)

Reduced Effective Activation Energy

Contour Range: 6-44
Contour Increment: 2

Rich Hydrogen-Air (Phi = 3.0)

Reduced Effective Activation Energy

Contour Range: 6-30
Contour Increment: 2

Stoichiometric Methane-Air

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

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Reduced Effective Activation Energy Ratio: Induction Time/Energy Release Time
Contour Range: 13-25
Contour Increment: 1
Contour Range: 2000-24000
Contour Increment: 2000