Symmetry-breaking-induced internal mixing enhancement of droplet collision

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dc.contributor.authorLeng, Yupeng
dc.contributor.authorHe, Chenging
dc.contributor.authorWang, Qian
dc.contributor.authorHe, Zhixia
dc.contributor.authorSimms, Nigel
dc.contributor.authorZhang, Peng
dc.date.accessioned2024-02-21T14:12:16Z
dc.date.available2024-02-21T14:12:16Z
dc.date.issued2023-12-29
dc.description.abstractBinary droplet collision is a basic fluid phenomenon for many spray processes in nature and industry involving lots of discrete droplets. It exists an inherent mirror symmetry between two colliding droplets. For specific cases of the collision between two identical droplets, the head-on collision and the off-center collision, respectively, show the axisymmetric and rotational symmetry characteristics, which is useful for the simplification of droplet collision modeling. However, for more general cases of the collision between two droplets involving the disparities of size ratio, surface tension, viscosity, and self-spin motions, the axisymmetric and rotational symmetry droplet deformation and inner flow tend to be broken, leading to many distinct phenomena that cannot occur for the collision between two identical droplets owing to the mirror symmetry. This review focused on interpreting the asymmetric droplet deformation and the collision-induced internal mixing that was affected by those symmetry breaking factors, such as size ratio effects, Marangoni Effects, non-Newtonian effects, and droplet self-spin motion. It helps to understand the droplet internal mixing for hypergolic propellants in the rocket engineering and microscale droplet reactors in the biological engineering, and the modeling of droplet collision in real combustion spray processes.en_UK
dc.identifier.citationLeng Y, He C, Wang Q, et al., (2024) Symmetry-breaking-induced internal mixing enhancement of droplet collision. Symmetry, Volume 16, Issue 1, January 2024, Article number 47en_UK
dc.identifier.eissn2073-8994
dc.identifier.urihttps://doi.org/10.3390/sym16010047
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/20848
dc.language.isoenen_UK
dc.publisherMDPIen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectdroplet collisionen_UK
dc.subjectsymmetryen_UK
dc.subjectsymmetry breakingen_UK
dc.subjectinternal mixingen_UK
dc.subjectbouncingen_UK
dc.subjectcoalescenceen_UK
dc.subjectseparationen_UK
dc.titleSymmetry-breaking-induced internal mixing enhancement of droplet collisionen_UK
dc.typeArticleen_UK
dcterms.dateAccepted2023-12-28

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