Numerical study on the effects of turbulence scale on spherically propagating hydrogen flames within multiple flame radii

Hazim Skekab; Hiroaki Watanabe; Ryoichi Kurose; Toshiaki Kitagawa

doi:10.20485/jsaeijae.10.4_292

Numerical study on the effects of turbulence scale on spherically propagating hydrogen flames within multiple flame radii

Hazim Skekab, Hiroaki Watanabe, Ryoichi Kurose, Toshiaki Kitagawa

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Abstract

Three-dimensional direct numerical simulations of spherically propagating premixed turbulent hydrogen flames were carried out to clarify the influence of turbulence scale on propagating hydrogen air flame. In a previous study 4 results suggested that an optimum integral length scale exists to promote flame propagation, with which the maximum burning velocity was obtained. This study investigates the influence of variation of turbulence scale on turbulent flame propagation and burning velocity within multiple turbulent flame radii. Results of the work suggest that an integral length scale was found where the maximum turbulent burning velocity exist. Also, it got larger as flame propagated.

Original language	English
Pages (from-to)	292-298
Number of pages	7
Journal	International Journal of Automotive Engineering
Volume	10
Issue number	4
DOIs	https://doi.org/10.20485/jsaeijae.10.4_292
Publication status	Published - Jan 1 2019

All Science Journal Classification (ASJC) codes

Human Factors and Ergonomics
Automotive Engineering
Safety, Risk, Reliability and Quality
Fluid Flow and Transfer Processes

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Skekab, H., Watanabe, H., Kurose, R., & Kitagawa, T. (2019). Numerical study on the effects of turbulence scale on spherically propagating hydrogen flames within multiple flame radii. International Journal of Automotive Engineering, 10(4), 292-298. https://doi.org/10.20485/jsaeijae.10.4_292

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