Molten drop formation from metal wires

Desforges, C. D.; Charles, J. A.

doi:10.1088/0508-3443/15/8/315

Cited by 1 publication

(1 citation statement)

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“…It is possible to measure surface tension coefficients of molten drops produced by heating the tip of different wires. Such measurements were performed by Calverley [13] (tungsten), Peterson et al [14] (titanium, zirconium and hafnium), Tille and Kelly [15] (titanium) and Desforges and Charles [16] (iron). Moreover, Vinet et al [17] applied the method to some refractory materials and developed the Harkins and Brown correction factor in its untabulated range.…”

Section: Introductionmentioning

confidence: 99%

Effects of injection angle on the measurement of surface tension coefficient by drop weight method

Moradian

Mostaghimi

2011

Physics and Chemistry of Liquids

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The drop weight method for surface tension measurement is based on the weight of drops detached from a nozzle. The original idea was based on a postulate introduced by Tate (On the Magnitude of a Drop of Liquid Formed Under Different Circumstances, Philos. Mag. 27, 176-180, 1864), assuming that the weights of an ideal pendant drop and a detached ideal drop are identical, and that this weight is equal to the surface force that holds a drop attached to the nozzle. To consider the real volume of a drop that detaches from a nozzle, the method required a correction factor. Harkins and Brown suggested such correction factors for vertical injection from a nozzle. In this study, a correction factor for injection at different angles is presented and some of the hydrodynamic effects on surface tension measurement based on the drop weight method are studied. In addition, a model is introduced for the detachment time of drops in directions other than the vertical direction

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