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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/23998

Title: Effect of Velocity Field on Drop Formation of a Capillary Jet in the Rayleigh Regime
Authors: Stephen G. Chuech;Ming-Ming Yan
Contributors: NTOU:Department of Mechanical and Mechatronic Engineering
Keywords: velocity field;breakup;capillary jet
Date: 2006
Issue Date: 2011-10-20T08:09:16Z
Publisher: Journal of the Chinese Institute of Engineers
Abstract: Abstract:A numerical analysis was carried out to investigate the effect of velocity field at the jet interface on the breakup process of a capillary jet. The present numerical model uses one‐dimensional formulation in an axisymmetric system, but preserves axial and radial velocities in the computation to exhibit a quasi two‐dimensional feature. For the validation of the calculated velocity fields, drop formation during the jet breakup was also simulated and compared with other measurements or analyses from past studies. The comparison shows that the present simulations are consistent with the experimental data for the main and satellite drop sizes. In the computed velocity field, the velocity vectors at the pinch points demonstrate that the fluid is driven in opposite directions and toward the jet centerline to form a satellite drop before the jet breakup. This indicates that the present one‐dimensional model is capable of analyzing the dynamics of drop formation without the need of fine grids or large amounts of computer time required by the two‐dimensional computations.
Relation: 29(1), pp.135-144
URI: http://ntour.ntou.edu.tw/handle/987654321/23998
Appears in Collections:[機械與機電工程學系] 期刊論文

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