TY - GEN
T1 - Fast mixing by pulse discharge in high-speed flow
AU - Leonov, Sergey B.
AU - Isaenkov, Yuri I.
AU - Yarantsev, Dmitry A.
AU - Shneider, Mikhail N.
PY - 2006
Y1 - 2006
N2 - This paper presents results of experimental and analytic efforts on the filamentary transversal pulse discharge application for mixing intensification in high-speed airflow. At present, the plasma of electrical discharges in airflow is considered as a quite promising method for flow/flight control and combustion enhancement. In the case of combustion in a high-speed flow several important problems should be solved: fuel ignition by direct heating/active radicals deposition/flow structure modification, mixing in non-premixed flow, flame-holding, etc. Preliminary analysis has shown that the short-pulse repetitive transversal electric discharge is one of the most prospective solutions for the duct with circular cross-section. On the other hand the properties of the filamentary plasma are not well studied under such specific conditions. The effect of fast turbulent expansion of the post-discharge channel in high-speed flow was observed experimentally. The mechanism of the phenomena was described theoretically for quiescent ambient conditions. In this paper it is supposed that effect of fast turbulent expansion of the post-discharge channel is effective for an acceleration of mixing in the non-premixed multi-component flow.
AB - This paper presents results of experimental and analytic efforts on the filamentary transversal pulse discharge application for mixing intensification in high-speed airflow. At present, the plasma of electrical discharges in airflow is considered as a quite promising method for flow/flight control and combustion enhancement. In the case of combustion in a high-speed flow several important problems should be solved: fuel ignition by direct heating/active radicals deposition/flow structure modification, mixing in non-premixed flow, flame-holding, etc. Preliminary analysis has shown that the short-pulse repetitive transversal electric discharge is one of the most prospective solutions for the duct with circular cross-section. On the other hand the properties of the filamentary plasma are not well studied under such specific conditions. The effect of fast turbulent expansion of the post-discharge channel in high-speed flow was observed experimentally. The mechanism of the phenomena was described theoretically for quiescent ambient conditions. In this paper it is supposed that effect of fast turbulent expansion of the post-discharge channel is effective for an acceleration of mixing in the non-premixed multi-component flow.
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U2 - 10.2514/6.2006-8129
DO - 10.2514/6.2006-8129
M3 - Conference contribution
AN - SCOPUS:33947227852
SN - 1563478269
SN - 9781563478260
T3 - A Collection of Technical Papers - 14th AIAA/AHI International Space Planes and Hypersonic Systems and Technologies Conference
SP - 2209
EP - 2216
BT - A Collection of Technical Papers - 14th AIAA/AHI International Space Planes and Hypersonics Systems Technologies Conference
PB - American Institute of Aeronautics and Astronautics Inc.
T2 - 14th AIAA/AHI International Space Planes and Hypersonics Systems Technologies Conference
Y2 - 6 November 2006 through 9 November 2006
ER -