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(jet controlled compression ignition,JCCI)的方法,其通过射流喷入一定量的高温气体来触发缸内处于着火临界状态的预混合气自燃,从而实现着火相位的有效控制.采用三维CFD耦合简化化学反应机理的方法,研究高温气体JCCI方式的着火和燃烧过程,分析射流温度分别为700,800,900和1 000 K时对其燃烧和排放特性的影响.研究结果表明:在上止点附近射流喷入高温气体能触...)07-1729-07 Effects of jet temperature on high temperature gas jet controlled compression ignition ZHU Pei1, TIAN Hua1, MENG Xiangyu2, CUI Jingchen1, TIAN Jiangping1, LONG Wuqiang1 (1. Institute......
of oscillatory gas jet caused by oxygen lance arrangement in bottom blown bath LI Peng1, 2, WANG Shi-bo1, 2, WANG Hua1, 2, ZHANG Wen-hai3 (1. State Key Laboratory of Complex Nonferrous Metal Resources Clean.... China Nerin Engineering Co., Ltd., Nanchang 330002, China) Abstract: In order to clarify the enhanced stirring mechanism of oscillatory gas jet in bottom-blown bath, a new way based on Betti numbers......
激波在转炉炼钢中的应用杨文远1,邹节忠2,王明林1,卢凯3(1.北京市钢铁研究总院2.萍乡钢铁公司,河南萍乡 3370193.武汉钢铁(集团)公司,湖北武汉 430080)摘 要:激波是超音速气流中液体属性的不连续面,气流通过激波时速度下降,温度和压强升高.氧气转炉炼钢的氧气是通过拉瓦尔管以超音速射流状态吹入转炉.在氧枪喷头设计和制定供氧制度时要减小激波损失.在转炉的某些特殊吹炼工艺中要把激波控制在适当范围内,以取得良好的冶金效果.关键词:激波； 射流； 马赫数； 超音速喷嘴......
Numerical simulation of circular jet impinging on hot steel plateFengli Wang1), Mouwei Li1), Yanqiu Zhao2), and Fengfu Yin1)1) Mechanical Engineering School, University of Science and Technology... of an axisymmetric circular jet impinging on a hot 1Cr18Ni9Ti medium plate have been simulated numerically using computational fluid dynamic (CFD) code. The relation between flow field of jet......
by plasma jet surface metallurgy CHEN Hao1, 2, YANG Jian-gao2, CHEN Mi-song1, LI Hui-qi3 (1. School of Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000... and Engineering, University of Science and Technology Beijing, Beijing 100083, China) Abstract: By plasma jet surface metallurgy technology, Fe-based large area coating was produced on the low carbon......
words: pulse jet electrodeposition; nickel film; corrosion resistance; mechanical property ......
of bionic jet surface and mechanism analysis of drag reduction ZHAO Gang, LI Fang, DU Junwei (College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, China) Abstract: To solve the problem of the drag reduction on different jet surfaces, a bionic surface was built. The numerical simulation was completed by using the turbulence model of shear-stress transport SST k......
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Fluid flow characteristics of single inclined circular jet impingement for ultra-fast coolingWANG Bing-xing(王丙兴), XIE Qian(谢谦), WANG Zhao-dong(王昭东), WANG Guo-dong(王国栋) (State Key Laboratory of Rolling and Automation (Northeastern University), Shenyang 110819, China)Abstract:The fluid flow characteristics of the single bunch inclined jet impingement were investigated with different jet flow......
Characteristics of a coherent jet enshrouded in a supersonic fuel gasFei Zhao1,2,Rong Zhu3,Wen-rui Wang41. Key Laboratory of Fluid Interaction with Material, University of Science and Technology.... School of Mechanical Engineer, University of Science and Technology Beijing摘 要:Based on a current coherent jet, this study proposes a supersonic combustion(SC......
