IMECH-IR  > 高温气体动力学国家重点实验室
A COMPUTATIONAL MODEL FOR SPINNING EFFECTS ON POST-COLLISION VELOCITIES OF BOUNCING DROPLETS
He CM(何成明)1,2; Yue LJ(岳连捷)1,2; Zhang, Peng3
Corresponding AuthorZhang, Peng([email protected])
Source PublicationATOMIZATION AND SPRAYS
2021
Volume31Issue:10Pages:43-61
ISSN1044-5110
AbstractThe present study proposed a computational model for the spinning effects on the post-collision characteristics (particularly velocities) of the bouncing droplets. The modeling work is based on the computational discoveries by using the validated volume-of-fluid method to simulate droplet collisions with various collisional parameters. The physical foundation of the model is based on the fact that the interchange between the orbital angular momentum and the spin angular momentum plays an important role in determining the post-collision velocities. First, the conversion of the orbital angular momentum into its spinning counterpart varies nonmonotonically with the impact parameter of two nonspinning droplets. Second, the conversion of the spin angular momentum into its orbital counterpart is significant for the collision between two spinning droplets. Furthermore, this spin-to-orbital angular momentum conversion varies monotonically with the azimuthal angle and is approximately independent of the translational Weber number, the spinning Weber number, and the Ohnesorge number. These computational discoveries have been analyzed for their physical meaning and taken into account in the proposed model.
Keywordspinning droplets droplet bouncing post-collision characteristics angular momentum volume-of-fluid
Indexed BySCI ; EI
Language英语
WOS IDWOS:000697643100003
WOS KeywordIMPINGING SPRAYS ; COALESCENCE ; COLLISIONS ; SEPARATION ; SIMULATIONS ; DYNAMICS
WOS Research AreaEngineering ; Materials Science ; Physics
WOS SubjectEngineering, Multidisciplinary ; Engineering, Chemical ; Engineering, Mechanical ; Materials Science, Multidisciplinary ; Physics, Applied
Funding ProjectChina Postdoctoral Science Foundation[2020M680 690] ; Hong Kong RGC/GRF[PolyU 152188/20E] ; Hong Kong Polytechnic University DGRF[G-UAHP]
Funding OrganizationChina Postdoctoral Science Foundation ; Hong Kong RGC/GRF ; Hong Kong Polytechnic University DGRF
ClassificationQ4
Ranking1
ContributorZhang, Peng
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/87472
Collection高温气体动力学国家重点实验室
Affiliation1.Chinese Acad Sci, Inst Mech, Lab Aerosp Sci & Technol, Beijing, Peoples R China;
2.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing, Peoples R China;
3.Hong Kong Polytech Univ, Dept Mech Engn, Hung Hom, Kowloon, Hong Kong 999077, Peoples R China
Recommended Citation
GB/T 7714
He CM,Yue LJ,Zhang, Peng. A COMPUTATIONAL MODEL FOR SPINNING EFFECTS ON POST-COLLISION VELOCITIES OF BOUNCING DROPLETS[J]. ATOMIZATION AND SPRAYS,2021,31,10,:43-61.Rp_Au:Zhang, Peng
APA 何成明,岳连捷,&Zhang, Peng.(2021).A COMPUTATIONAL MODEL FOR SPINNING EFFECTS ON POST-COLLISION VELOCITIES OF BOUNCING DROPLETS.ATOMIZATION AND SPRAYS,31(10),43-61.
MLA 何成明,et al."A COMPUTATIONAL MODEL FOR SPINNING EFFECTS ON POST-COLLISION VELOCITIES OF BOUNCING DROPLETS".ATOMIZATION AND SPRAYS 31.10(2021):43-61.
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