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为研究三旋流高温升燃烧组织技术,借助CFD技术对三旋流单头部燃烧室进行了数值模拟,采用结构化网格生成技术、realizable k-ε湍流模型、PDF(概率密度)燃烧模型等对其进行模拟计算,获得了燃烧室内流场和燃烧场分布及各方面的燃烧性能参数,同时试验研究了三旋流单头部燃烧室的火焰筒壁温、出口温度分布、燃烧效率、排气冒烟数。结果表明:三旋流燃烧室的温升高达1 130K,燃烧效率超过99%,火焰筒壁温分布较好,冒烟数不高于20;所采用的数学模型合理、计算方法可行,与试验数据基本吻合,其结果可为三旋流燃烧室设计提供参考。
In order to study the three-swirl high-temperature combustion technology, a three-swirl single-head combustion chamber was numerically simulated by using CFD technology. Structured grid generation technology, realizable k-ε turbulence model, PDF The simulation results show that the distribution of the flow field and the combustion field in the combustion chamber and the combustion performance parameters of the combustion chamber are obtained. In addition, the combustion chamber wall temperature, outlet temperature distribution, combustion efficiency, Exhaust smoke number. The results show that the temperature rise of the three-cyclone combustor is as high as 1 130K, the combustion efficiency is over 99%, the wall temperature distribution of the flame tube is good, and the number of fumes is not higher than 20. The mathematical model is reasonable and the calculation method is feasible. The data are in good agreement with each other, and the result can provide reference for the design of three-swirl combustor.