物理学报Issue(12)：1-10,10.DOI:10.7498/aps.62.125207
等离子体合成射流能量效率及工作特性研究*
Energy efficiency and performance characteristics of plasma synthetic jet∗
摘要
Abstract
Based on the Joule heating effect of gas discharge in the working process of the plasma actuator, the plasma synthetic jet is simulated with a three-dimensional phenomenological model, under the assumption of local thermodynamic equilibrium plasma.The flow field evolution process of the plasma synthetic jet during a whole cycle is obtained. The results show that in the self-sustained periodical jet built by a single energy deposition, there is a maxium pulse frequency—saturated frequency which could relaize that the cavity is recovered sufficiently. Large energy deposition, small exit orifice diameter and high diameter-height ratio with the same cavity volume could induce higher speed jet, and the increase of the jet speed occurs concurrently with the decrease of the saturated frequency. During a saturated cycle, up to 16%of the mass in the cacity is expelled, but the recovery can only achieve about 90%of the initial mass in the cavity. Plasma synthetic jet actuator is supplied by a capacitive power supply at atmospheric pressure, the fractions of power that go into gas heating and jet kinetic energy are 5%and 1.6%respectively.关键词
等离子体激励器/合成射流/能量效率/饱和频率Key words
plasma actuator/synthetic jet/energy efficiency/saturation frequency引用本文复制引用
王林,罗振兵,夏智勋,刘冰..等离子体合成射流能量效率及工作特性研究*[J].物理学报,2013,(12):1-10,10.基金项目
国家自然科学基金(批准号:11002161)、全国优秀博士论文作者专项基金(批准号:201058)和高等学校博士学科点专项科研基金(批准号:20104307110007)资助的课题 （批准号:11002161）
