具有不同气态烃燃料的钝体稳定2D，V形湍流预混火焰的动力学与吹脱特性实验研究

2019/07/17   下载量： 0 次

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应用领域 能源/新能源
检测样本 其他
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采用LaVision的 FlowMaster-3S相机和DaVis软件构成粒子成像测速系统，对具有不同气态烃燃料的钝体稳定2D，V形湍流预混火焰的动力学与吹脱特性进行了实验研究

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‘Fire’ is unequivocally one of the greatest discoveries in human history. Anthropological
evidences say that the early ancestors of ‘Homo sapiens’ had a lot of interest in this particular
process of chemical reaction between aerial oxygen and fuel (essentially called fire) over
thousands of years for cooking food, keeping predators away and most importantly to stay warm during the coldest periods of years. In present days, the above-mentioned chemical reaction process popularly known as ‘combustion’ finds most of its application in power generation and propulsion applications. Of different kinds of combustion processes, extensive amount of research related to turbulent premixed combustion has been conducted so far because of its widespread application in propulsion and energy devices such as spark ignition engines, aviation and landbased gas turbines etc. All these devices include a flame during the process of combustion and hence, the study of flames is one of the most important aspects of combustion research. Flames are primarily divided in two different categories, popularly known as ‘laminar’ and ‘turbulent’ flames. However, for the requirement of compact size and efficient mixing, most practical combustors include turbulent flames. For any combustor, mixing and flame stabilization is extremely important from the point of view of design. Commonly used flame stabilization methods involve bluff body stabilization, swirl stabilization or combination of both. Bluff body flame stabilization is found generally in afterburner applications such as in military aircrafts and in a few jet engines to provide an increased amount of thrust.

上一篇 在一个双稳湍流涡旋火焰中，对间歇性动态的时间-频率定位
下一篇 基于激光的分层环境燃烧的层流和湍流测量研究

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北京欧兰科技发展有限公司
金牌会员 丨 第17年
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