Resonance of Oscillations between the Reaction Products and Initial Mixture As a Reason for the Deflagration-to-Detonation Transition

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Resonance of Oscillations between the Reaction Products and Initial Mixture As a Reason for the Deflagration-to-Detonation Transition. / Vasil’ev, A. A.

In: Combustion, Explosion and Shock Waves, Vol. 58, No. 3, 06.2022, p. 318-326.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{a75e5ddded604dddb71b994cc3b1dd56,

title = "Resonance of Oscillations between the Reaction Products and Initial Mixture As a Reason for the Deflagration-to-Detonation Transition",

abstract = "Qualitative transformation of a low-velocity laminar flow to a turbulent state (owing to natural or artificial instability) and formation of compression waves passing ahead have been studied in much detail. A disputable issue is the nature of the emergence of a reaction pocket in the region between the bow compression wave and the flame front moving at a certain distance behind this wave, as well as the dynamics of interaction of this pocket with the main structural elements. It is the type of this pocket (slow or explosive combustion) that defines its subsequent interaction with the compression wave front: shockless or shock-induced expansion capable of forming a detonation wave. As a method of transforming the reaction pocket to an explosion pocket, its amplification owing to the resonance of streamwise acoustic oscillations of hot reaction products with the initial combustible mixture induced by flame propagation is discussed. It is the resonance with its multiple enhancement of the amplitude of gas-dynamic parameters that can effectively initiate the deflagration-to-detonation transition. Various stages of this transition are discussed; the corresponding estimates are made and are found to be consistent with experiments.",

keywords = "deflagration-to-detonation transition, reacting media, resonance of oscillations, subsonic and supersonic flows",

author = "Vasil{\textquoteright}ev, {A. A.}",

note = "Publisher Copyright: {\textcopyright} 2022, Pleiades Publishing, Ltd.",

year = "2022",

month = jun,

doi = "10.1134/S0010508222030078",

language = "English",

volume = "58",

pages = "318--326",

journal = "Combustion, Explosion and Shock Waves",

issn = "0010-5082",

publisher = "Springer New York",

number = "3",

}

RIS

TY - JOUR

T1 - Resonance of Oscillations between the Reaction Products and Initial Mixture As a Reason for the Deflagration-to-Detonation Transition

AU - Vasil’ev, A. A.

PY - 2022/6

Y1 - 2022/6

N2 - Qualitative transformation of a low-velocity laminar flow to a turbulent state (owing to natural or artificial instability) and formation of compression waves passing ahead have been studied in much detail. A disputable issue is the nature of the emergence of a reaction pocket in the region between the bow compression wave and the flame front moving at a certain distance behind this wave, as well as the dynamics of interaction of this pocket with the main structural elements. It is the type of this pocket (slow or explosive combustion) that defines its subsequent interaction with the compression wave front: shockless or shock-induced expansion capable of forming a detonation wave. As a method of transforming the reaction pocket to an explosion pocket, its amplification owing to the resonance of streamwise acoustic oscillations of hot reaction products with the initial combustible mixture induced by flame propagation is discussed. It is the resonance with its multiple enhancement of the amplitude of gas-dynamic parameters that can effectively initiate the deflagration-to-detonation transition. Various stages of this transition are discussed; the corresponding estimates are made and are found to be consistent with experiments.

AB - Qualitative transformation of a low-velocity laminar flow to a turbulent state (owing to natural or artificial instability) and formation of compression waves passing ahead have been studied in much detail. A disputable issue is the nature of the emergence of a reaction pocket in the region between the bow compression wave and the flame front moving at a certain distance behind this wave, as well as the dynamics of interaction of this pocket with the main structural elements. It is the type of this pocket (slow or explosive combustion) that defines its subsequent interaction with the compression wave front: shockless or shock-induced expansion capable of forming a detonation wave. As a method of transforming the reaction pocket to an explosion pocket, its amplification owing to the resonance of streamwise acoustic oscillations of hot reaction products with the initial combustible mixture induced by flame propagation is discussed. It is the resonance with its multiple enhancement of the amplitude of gas-dynamic parameters that can effectively initiate the deflagration-to-detonation transition. Various stages of this transition are discussed; the corresponding estimates are made and are found to be consistent with experiments.

KW - deflagration-to-detonation transition

KW - reacting media

KW - resonance of oscillations

KW - subsonic and supersonic flows

UR - http://www.scopus.com/inward/record.url?scp=85135511559&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/bb959c9e-696b-36ef-942b-d90ea1875cf6/

U2 - 10.1134/S0010508222030078

DO - 10.1134/S0010508222030078

M3 - Article

AN - SCOPUS:85135511559

VL - 58

SP - 318

EP - 326

JO - Combustion, Explosion and Shock Waves

JF - Combustion, Explosion and Shock Waves

SN - 0010-5082

IS - 3

ER -

ID: 36807422