Effect of spinning on the shape and stability of a pendent drop

Autor:	P. Lin, X. Lin, L. E. Johns, Ranga Narayanan
Rok vydání:	2020
Předmět:	Physics::Fluid Dynamics Physics Surface tension Lighter fluid Drop (liquid) 0103 physical sciences Observable Mechanics 010306 general physics 01 natural sciences Instability Spinning 010305 fluids & plasmas
Zdroj:	Physical Review E. 101
ISSN:	2470-0053 2470-0045
DOI:	10.1103/physreve.101.043116
Popis:	Assuming that we wish to measure the surface tension between two liquids by running a pendent drop experiment, we present calculations supporting the case for spinning the drop. For bridges, jets, etc., spinning a heavy fluid surrounded by a lighter fluid is strictly destabilizing. But we find that spinning a drop may be stabilizing and, if this is so, it leads to larger critical volumes, volumes where stability is lost, and thus more accurate measurements of surface tension. There are two observable patterns, one symmetric and the other unsymmetric, at the point of instability. The symmetric pattern leads to larger critical volumes. Our aim is to show how spinning can be used to achieve the symmetric pattern.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72c07259b788f89c966ed67c8b6887ae https://doi.org/10.1103/physreve.101.043116 Zobrazit plný text záznamu