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.
|Number of pages||6|
|Journal||American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD|
|State||Published - 1 Dec 1988|
|Event||ASME Proceedings of the 1988 National Heat Transfer Conference - Houston, TX, USA|
Duration: 24 Jul 1988 → 27 Jul 1988