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机构地区:[1]南京理工大学
出 处:《燃烧科学与技术》1998年第2期186-192,共7页Journal of Combustion Science and Technology
摘 要:针对由柴油机轴针式喷油系统喷出的瞬态燃油喷注,利用由KIVA-2软件拓展和改进而成的NMS-ICE计算机软件进行了深入的多维数值模拟。分别研究了蒸发和非蒸发燃油喷注,给出了各种情况下瞬态喷注的贯穿和蒸发特性,揭示了瞬态喷注粒子间的相互作用和运动特征。还研究了计算网络的合理确定,指出了TAB雾化模型不适于处理本文喷注的雾化和2次分裂。お? The transient diesel sprays injected from a ZS4S1 injector fuel injections system into atmospheric and high temperature environments are numerically characterized in detail.The computer code NMSICE,which is originated from KIVA2 and is incorporated with a new combustion model,a new selfignition model and soot formation and oxidation model,was accepted.Four conditions of vaporizing and nonvaporizing transient sprays were examined in the simulation.Some calculated results were compared with the experimental data.The penetration,the vaporization,the spray droplet movements and the interactions between spray droplets were clearly clarified.For improving the computational accuracy and efficiency,the reasonable distribution of computational grids and the suitability of atomization model were also studied.
分 类 号:TK421.43[动力工程及工程热物理—动力机械及工程] TK421.2
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