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Communication Dans Un Congrès Année : 2015

Comparison of different approaches to determine the effect of uncertainties in detailed chemistry on auto-ignition delay for air-hydrogen mixtures

Résumé

The propagation of uncertainties in the chemical reaction rate constants onto the auto-ignition delay of an air-hydrogen mixture is studied with different approaches. An analysis of variance is carried out to reduce the number of stochastic dimensions of the problem to three reactions for the investigated case. Comparisons between Monte-Carlo method, adaptative cubature method and Polynomial Chaos expansion are then made, regarding both the accuracy and the computational cost.
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Dates et versions

hal-01780996 , version 1 (23-07-2020)

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  • HAL Id : hal-01780996 , version 1

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Nicolas Dumont, Ronan Vicquelin, Olivier Gicquel. Comparison of different approaches to determine the effect of uncertainties in detailed chemistry on auto-ignition delay for air-hydrogen mixtures. 7th European Combustion Meeting, Mar 2015, Budapest, Hungary. ⟨hal-01780996⟩
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