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 Author | Zhang, Peng([email protected]) |
Source Publication | ATOMIZATION AND SPRAYS |
2021 | |
Volume | 31Issue:10Pages:43-61 |
ISSN | 1044-5110 |
Abstract | The 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. |
Keyword | spinning droplets droplet bouncing post-collision characteristics angular momentum volume-of-fluid |
Indexed By | SCI ; EI |
Language | 英语 |
WOS ID | WOS:000697643100003 |
WOS Keyword | IMPINGING SPRAYS ; COALESCENCE ; COLLISIONS ; SEPARATION ; SIMULATIONS ; DYNAMICS |
WOS Research Area | Engineering ; Materials Science ; Physics |
WOS Subject | Engineering, Multidisciplinary ; Engineering, Chemical ; Engineering, Mechanical ; Materials Science, Multidisciplinary ; Physics, Applied |
Funding Project | China Postdoctoral Science Foundation[2020M680 690] ; Hong Kong RGC/GRF[PolyU 152188/20E] ; Hong Kong Polytechnic University DGRF[G-UAHP] |
Funding Organization | China Postdoctoral Science Foundation ; Hong Kong RGC/GRF ; Hong Kong Polytechnic University DGRF |
Classification | Q4 |
Ranking | 1 |
Contributor | Zhang, Peng |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://dspace.imech.ac.cn/handle/311007/87472 |
Collection | 高温气体动力学国家重点实验室 |
Affiliation | 1.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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