Motion of an accelerating droplet

A. Ullmann, R. Letan

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations

Abstract

A time-dependent velocity was numerically obtained for the motion of a droplet in an immiscible liquid. The terms of 'added mass' and 'history' were included. The case of a droplet accelerated from rest was examined against solutions previously obtained by other researchers. The agreement was good. Visualization of the wake configuration and movement was conducted simultaneously. The experiments illustrated an asymmetric detachment of the wake and its effect on the droplet shape, position, and velocity. The theoretically prediced time-dependent and terminal velocities were the average velocities of the experimentally measured oscillatory motion. The conventional formulations of instantaneous velocity apparently did not account for all the effects in the process.

Original languageEnglish
Pages (from-to)455-460
Number of pages6
JournalAmerican Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
Volume96
StatePublished - 1 Dec 1988
EventASME Proceedings of the 1988 National Heat Transfer Conference - Houston, TX, USA
Duration: 24 Jul 198827 Jul 1988

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