中国电机工程学报2025，Vol.45Issue(10)：3902-3911,中插18,11.DOI:10.13334/j.0258-8013.pcsee.240058
蒸汽环境下纯氢纯氧微混喷嘴掺混特性数值研究
Numerical Investigation on the Mixing Characteristics of Pure Hydrogen and Oxygen Micro-mixing Nozzles Under Steam Environment
摘要
Abstract
Addressing the challenges of combustion completion in near-stoichiometric hydrogen-oxygen-steam mixtures,micro-mix combustion,with its rapid mixing attributes,emerges as a promising solution.This paper presents a numerical simulation study on the mixing characteristics of a hydrogen-oxygen-steam micro-mix nozzle.Initially,employing a chemical reaction network model,the influence of mixing uniformity on combustion efficiency is analyzed.The results indicate that combustion efficiency increases with enhanced mixing uniformity,thereby establishing the required mixing criteria.Subsequently,computational fluid dynamics(CFD)methods are utilized to investigate the multi-component mixing characteristics within a micro-mix single nozzle and its underlying mechanisms.It is discovered that horseshoe vortices inducing strong turbulence are the primary mechanism controlling the mixing of steam and hydrogen.The uniform mixing of oxygen with the hydrogen-steam mixture is primarily associated with the relative position of counter-rotating swirl vortices and regions of high oxygen concentration.关键词
氢-氧-蒸汽/掺混特性/动量比/涡系结构Key words
hydrogen-oxygen-steam/mixing characteristics/momentum ratio/vortex structure分类
化学化工引用本文复制引用
郑思齐,撒博文,邵卫卫,刘策..蒸汽环境下纯氢纯氧微混喷嘴掺混特性数值研究[J].中国电机工程学报,2025,45(10):3902-3911,中插18,11.基金项目
航空发动机及燃气轮机基础科学中心重点项目(P2022-AB-Ⅱ-006-003) （P2022-AB-Ⅱ-006-003）
中国科学院青年创新促进会项目(Y2021054).Project Supported by the Science Center for Gas Turbines Project(P2022-AB-Ⅱ-006-003) （Y2021054）
Youth Innovation Promotion Association,Chinese Academy of Sciences(Y2021054). （Y2021054）
