Reversal and Inversion of Capillary Jet Breakup at Large Excitation Amplitudes
Reversal and Inversion of Capillary Jet Breakup at Large Excitation Amplitudes
复制标题
大激励幅度下毛细管射流破裂的反转和反转
DOI:
10.1007/s10494-021-00291-w
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Denner F
中科院分区:
文献类型:
--
作者:
Denner F
The evolution of the capillary breakup of a liquid jet under large excitation amplitudes in a parameter regime relevant to inkjet printing is analysed using three-dimensional numerical simulations. The results exhibit a reversal of the breakup length of the jet occurring when the velocity scales associated with the excitation of the jet and surface tension are comparable, and an inversion of the breakup from front-pinching to back-pinching at sufficiently large excitation amplitudes. Both phenomena are shown to be associated with the formation of vortex rings and a local flow obstruction inside the jet, which modify the evolution of the jet by locally reducing or even reversing the growth of the capillary instability. Hence, this study provides a mechanism for the well-known breakup reversal and breakup inversion, which are both prominent phenomena in inkjet printing. An empirical similarity model for the reversal breakup length is proposed, which is shown to be valid throughout the considered range of characteristic parameters. Hence, even though the fluid dynamics observed in capillary jet breakup with large excitation amplitudes are complex, the presented findings allow an accurate prediction of the behaviour of jets in many practically relevant situations, especially continuous inkjet printing.
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影响因子:
2.4
作者:
Castrejon-Pita, J. R.;Morrison, N. F.;Hutchings, I. M.
通讯作者:
Hutchings, I. M.
影响因子:
4.1
作者:
BRACKBILL, JU;KOTHE, DB;ZEMACH, C
通讯作者:
ZEMACH, C
DOI:
10.1016/j.jcp.2020.109348
发表时间:
2020
期刊:
J. Comput. Phys.
影响因子:
--
作者:
Fabian Denner;Fabien Evrard;B. Wachem
通讯作者:
B. Wachem
影响因子:
4.1
作者:
Fabian Denner;B. Wachem
通讯作者:
B. Wachem
影响因子:
3.7
作者:
Pritish M. Kamat;Brayden W. Wagoner;A. A. Castrejón;J. Castrejón;Christopher R. Anthony;O. Basaran
通讯作者:
O. Basaran