Atomization and droplet dynamics of a gas-liquid two-phase jet under different mass loading ratios

doi:10.1016/j.ijmultiphaseflow.2022.104043

CORC > 力学研究所 > 中国科学院力学研究所 > 高温气体动力学国家重点实验室

	Atomization and droplet dynamics of a gas-liquid two-phase jet under different mass loading ratios
	Wu, Hao 2; Zhang, Fujun 2; Zhang, Zhenyu 2; Hou, Lin 1
刊名	INTERNATIONAL JOURNAL OF MULTIPHASE FLOW
	2022-06-01
卷号	151 页码:18
关键词	Gas-liquid two-phase jet Mass loading ratio Stokes number Breakup Collision
ISSN号	0301-9322
DOI	10.1016/j.ijmultiphaseflow.2022.104043
通讯作者	Zhang, Zhenyu(zhenyu.zhang@bit.edu.cn)
英文摘要	Atomization and droplet dynamics of a gas-liquid two-phase jet were investigated experimentally, with the particular interest in the influence of mass loading ratio (the ratio of droplet mass flow rate to the carrier-phase mass flow rate, ranging from 0.60 to 3.23) on the jet atomization. Droplet size and velocity at selected positions were obtained by employing Phase Doppler Particle Analyzer (PDPA), combined with backlit illumination for spray visualization. Droplet transport characteristics are substantially influenced by the mass load ratio. Char-acterization of the local gas flow velocity by using droplets smaller than 5 mu m reveals a highly turbulent jet with Reynolds number exceeding 5 x 10(4), implying the possibility of droplet turbulent breakup. Critical equilibrium location x(crit )between droplet breakup and coalescence is close to the nozzle exit and a positive correlation is found between mass loading ratio and x(crit). Exaltation of mass loading ratio increases the droplet size and de-creases the velocity. Quantification of droplet collision outcome indicates a relatively high probability of coa-lescence, which explicates the downstream increasing of measured droplet Sauter mean diameter along the centerline of far-field jet.
资助项目	National Natural Science Foundation of China[51806013] ; Foundation research funds of the Ministry of Industry and Information Technology[JCKY2019602D018] ; Foundation research funds of the Ministry of Industry and Information Technology[WDZC-2019-JGKK-02] ; Beijing Institute of Technology Research Fund Program for Young Scholars[2020CX04047]
WOS关键词	TWIN-FLUID ATOMIZATION ; SPRAY ; VELOCITY ; LADEN ; BREAKUP ; SIZE ; DISTRIBUTIONS ; COALESCENCE ; FLOW
WOS研究方向	Mechanics
语种	英语
WOS记录号	WOS:000790897300003
资助机构	National Natural Science Foundation of China ; Foundation research funds of the Ministry of Industry and Information Technology ; Beijing Institute of Technology Research Fund Program for Young Scholars
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/89345]
专题	力学研究所_高温气体动力学国家重点实验室
通讯作者	Zhang, Zhenyu
作者单位	1.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China 2.Beijing Inst Technol, Sch Mech Engn, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Wu, Hao,Zhang, Fujun,Zhang, Zhenyu,et al. Atomization and droplet dynamics of a gas-liquid two-phase jet under different mass loading ratios[J]. INTERNATIONAL JOURNAL OF MULTIPHASE FLOW,2022,151:18.
APA	Wu, Hao,Zhang, Fujun,Zhang, Zhenyu,&Hou, Lin.(2022).Atomization and droplet dynamics of a gas-liquid two-phase jet under different mass loading ratios.INTERNATIONAL JOURNAL OF MULTIPHASE FLOW,151,18.
MLA	Wu, Hao,et al."Atomization and droplet dynamics of a gas-liquid two-phase jet under different mass loading ratios".INTERNATIONAL JOURNAL OF MULTIPHASE FLOW 151(2022):18.