Numerical assessment of subgrid scale models for scalar transport in large-eddy simulations of hydrogen-enriched fuels

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Numerical assessment of subgrid scale models for scalar transport in large-eddy simulations of hydrogen-enriched fuels. / Mira Martinez, Daniel; Jiang, Xi; Moulinec, C. et al.
In: International Journal of Hydrogen Energy, Vol. 39, No. 14, 05.05.2014, p. 7173-7189.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Mira Martinez, D, Jiang, X, Moulinec, C & Emerson, DR 2014, 'Numerical assessment of subgrid scale models for scalar transport in large-eddy simulations of hydrogen-enriched fuels', International Journal of Hydrogen Energy, vol. 39, no. 14, pp. 7173-7189. https://doi.org/10.1016/j.ijhydene.2014.03.018

APA

Mira Martinez, D., Jiang, X., Moulinec, C., & Emerson, D. R. (2014). Numerical assessment of subgrid scale models for scalar transport in large-eddy simulations of hydrogen-enriched fuels. International Journal of Hydrogen Energy, 39(14), 7173-7189. https://doi.org/10.1016/j.ijhydene.2014.03.018

Vancouver

Mira Martinez D, Jiang X, Moulinec C, Emerson DR. Numerical assessment of subgrid scale models for scalar transport in large-eddy simulations of hydrogen-enriched fuels. International Journal of Hydrogen Energy. 2014 May 5;39(14):7173-7189. doi: 10.1016/j.ijhydene.2014.03.018

Author

Mira Martinez, Daniel ; Jiang, Xi ; Moulinec, C. et al. / Numerical assessment of subgrid scale models for scalar transport in large-eddy simulations of hydrogen-enriched fuels. In: International Journal of Hydrogen Energy. 2014 ; Vol. 39, No. 14. pp. 7173-7189.

Bibtex

@article{ceb1dd8a0ea94f98be6db6de41190293,

title = "Numerical assessment of subgrid scale models for scalar transport in large-eddy simulations of hydrogen-enriched fuels",

abstract = "A comparison of two different models addressing the scalar transport in large-eddy simulations is conducted for a non-reacting jet and an experimental flame. A simple approach based on a gradient diffusion closure is compared against the linear-eddy model in the context of hydrogen-enriched non-reacting fuel jets and flames burning hydrogen-enriched mixtures. The results show that the gradient diffusion model is not valid as a subgrid scale model for large-eddy simulations of mixtures containing hydrogen. It produces unphysical scalar fields with unrealistic temperature distributions. Approaches based on the linear-eddy model can be used instead to obtain appropriate representation of the scalar field and more accurate predictions of the scalar transport and the temperature field.",

keywords = "Large-eddy simulation, Linear-eddy model , Eddy diffusivity , Scalar transport , Hydrogen , Counter-gradient diffusion",

author = "{Mira Martinez}, Daniel and Xi Jiang and C. Moulinec and Emerson, {D. R.}",

year = "2014",

month = may,

day = "5",

doi = "10.1016/j.ijhydene.2014.03.018",

language = "English",

volume = "39",

pages = "7173--7189",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

publisher = "Elsevier Limited",

number = "14",

}

RIS

TY - JOUR

T1 - Numerical assessment of subgrid scale models for scalar transport in large-eddy simulations of hydrogen-enriched fuels

AU - Mira Martinez, Daniel

AU - Jiang, Xi

AU - Moulinec, C.

AU - Emerson, D. R.

PY - 2014/5/5

Y1 - 2014/5/5

N2 - A comparison of two different models addressing the scalar transport in large-eddy simulations is conducted for a non-reacting jet and an experimental flame. A simple approach based on a gradient diffusion closure is compared against the linear-eddy model in the context of hydrogen-enriched non-reacting fuel jets and flames burning hydrogen-enriched mixtures. The results show that the gradient diffusion model is not valid as a subgrid scale model for large-eddy simulations of mixtures containing hydrogen. It produces unphysical scalar fields with unrealistic temperature distributions. Approaches based on the linear-eddy model can be used instead to obtain appropriate representation of the scalar field and more accurate predictions of the scalar transport and the temperature field.

AB - A comparison of two different models addressing the scalar transport in large-eddy simulations is conducted for a non-reacting jet and an experimental flame. A simple approach based on a gradient diffusion closure is compared against the linear-eddy model in the context of hydrogen-enriched non-reacting fuel jets and flames burning hydrogen-enriched mixtures. The results show that the gradient diffusion model is not valid as a subgrid scale model for large-eddy simulations of mixtures containing hydrogen. It produces unphysical scalar fields with unrealistic temperature distributions. Approaches based on the linear-eddy model can be used instead to obtain appropriate representation of the scalar field and more accurate predictions of the scalar transport and the temperature field.

KW - Large-eddy simulation

KW - Linear-eddy model

KW - Eddy diffusivity

KW - Scalar transport

KW - Hydrogen

KW - Counter-gradient diffusion

U2 - 10.1016/j.ijhydene.2014.03.018

DO - 10.1016/j.ijhydene.2014.03.018

M3 - Journal article

VL - 39

SP - 7173

EP - 7189

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

SN - 0360-3199

IS - 14

ER -

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