Effect of non-equilibrium plasma on decreasing the detonation cell size

被引：13

作者：

Cherif, Mhedine Ali ^{[1
]}

Shcherbanev, Sergey A. ^{[1
,3
]}

Starikovskaia, Svetlana M. ^{[1
]}

Vidal, Pierre ^{[2
]}

机构：

[1] Ecole Polytech, CNRS, Lab Phys Plasmas, UMR 7648, Route Saclay, F-91128 Palaiseau, France

[2] Inst Pprime, ENSMA, UPR CNRS 3346, F-86034 Chasseneuil, France

[3] Swiss Fed Inst Technol, CAPS Lab, Dept Mech & Proc Engn, CH-8092 Zurich, Switzerland

来源：

COMBUSTION AND FLAME | 2020年 / 217卷

关键词：

IGNITION; DYNAMICS;

D O I：

10.1016/j.combustflame.2020.03.014

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The effect of a volumetric nanosecond discharge on detonation cell size was demonstrated experimentally in a detonation tube test rig. The experiments were performed in CH4:O-2:Ar=1:2:2 and CH4:O-2:Ar:H-2=3:7:8:2 mixtures, at 180 mbar and 120 mbar respectively and ambient temperature. The plasma was generated by two consecutive pulses of -50 and -32 kV amplitude on the high-voltage electrode and 25 ns pulse duration. The analysis of the detonation cell size with and without plasma generation was performed via sooted-plate technique. The detonation cell size was reduced by a factor of 1.5-3, while passing through the region of the discharge. (C) 2020 The Combustion Institute. Published by Elsevier Inc. All rights reserved.

引用

页码：1 / 3

页数：3

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