CAJ | 학술논문

为分析辅助气流在双气流雾化喷嘴雾化燃油过程中所起的作用，以自行开发的一种用于高速燃气喷涂枪的双气流雾化喷嘴为例，运用计算流体动力学（Computatuinal Fluid Dynamics，CFD）模拟技术计算了该喷嘴气流场，分析了辅助气流对喷嘴气流场分布的影响规律。结果表明：辅助气流使气流喷射锥角和喷射锥空域都有所减小，气流场高速区扩大。这保证了喷嘴气流场结构的完整，增强了雾化效果，实现了雾化喷嘴在较大供气压力范围内的稳焰功能和优异的雾化,能。
위분석보조기류재쌍기류무화분취무화연유과정중소기적작용，이자행개발적일충용우고속연기분도창적쌍기류무화분취위례，운용계산류체동역학（Computatuinal Fluid Dynamics，CFD）모의기술계산료해분취기류장，분석료보조기류대분취기류장분포적영향규률。결과표명：보조기류사기류분사추각화분사추공역도유소감소，기류장고속구확대。저보증료분취기류장결구적완정，증강료무화효과，실현료무화분취재교대공기압력범위내적은염공능화우이적무화,능。
To analyze the assistant gas flow’s role in the process of atomizing fuel oil by double gas flow atomizing nozzel,the air flow field of the double gas flow atomizing nozzle which has been developed for high speed gas spraying independently is computed to analyze the assistant gas flow’s influence to the air flow field through Computational Fluid Dynamics(CFD).It is found that assistant gas minifies the cone angle and spraying area of spraying airflow,enlarges the high-speed field to make sure the air flow field’s structure intact and enhance atomizing property of the nozzle.These make the double gas flow nozzle steady flame and get superior oil spray under a wide range of gas inlet pressure.