Self-turbulization in cellularly unstable laminar flames
Self-turbulization in cellularly unstable laminar flames
复制标题
细胞不稳定层流火焰中的自湍流
DOI:
10.1017/jfm.2021.330
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发表时间:
2021
影响因子:
3.7
通讯作者:
Saha, Abhishek
中科院分区:
文献类型:
--
作者:
Liu, Zirui;Unni, Vishnu R.;Chaudhuri, Swetaprovo;Sui, Ran;Law, Chung K.;Saha, Abhishek
It has been suggested that a cellularly unstable laminar flame, which is freely propagating in unbounded space, can accelerate and evolve into a turbulent flame with the neighbouring flow exhibiting the basic characteristics of turbulence. Famously known as self-turbulization, this conceptual transition in the flow regime, which arises from local interactions between the propagating wrinkled flamefront and the flow, is critical in extreme events such as the deflagration-to-detonation transition (DDT) leading to supernova explosions. Recognizing that such a transition in the flow regime has not been conclusively demonstrated through experiments, in this work, we present experimental measurements of flow characteristics of flame-generated ‘turbulence’ for expanding cellular laminar flames. The energy spectra of such ‘turbulence’ at different stages of cellular instability are analysed. A subsequent scaling analysis points out that the observed energy spectra are driven by the fractal topology of the cellularly unstable flamefront.
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影响因子:
2.4
作者:
R. Lamioni;P. E. Lapenna;G. Troiani;F. Creta
通讯作者:
F. Creta
DOI:
--
发表时间:
2019
期刊:
Doklady physics (Print)
影响因子:
--
作者:
A. Kiverin;I. Yakovenko;V. Fortov
通讯作者:
V. Fortov
DOI:
10.1103/physreve.88.033005
发表时间:
2012-03
期刊:
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子:
--
作者:
Swetaprovo Chaudhuri;Fujia Wu;C. Law
通讯作者:
Swetaprovo Chaudhuri;Fujia Wu;C. Law
影响因子:
1.3
作者:
W. Ashurst
通讯作者:
W. Ashurst
DOI:
10.1016/j.proci.2020.06.118
发表时间:
2020-08
期刊:
--
影响因子:
--
作者:
Zirui Liu;Vishnu R Unni;Swetaprovo Chaudhuri;C. Law;A. Saha
通讯作者:
Zirui Liu;Vishnu R Unni;Swetaprovo Chaudhuri;C. Law;A. Saha