Water bells formed on the underside of a horizontal plate. Part 1. Experimental investigation

Autor:	Eleanor C. Button, John E. Sader, Graeme J. Jameson, Claire E. Jenkins
Rok vydání:	2010
Předmět:	Jet (fluid) business.industry Mechanical Engineering Flow (psychology) Radius Mechanics Condensed Matter Physics Volumetric flow rate Surface tension Optics Volume (thermodynamics) Mechanics of Materials business Axial symmetry Falling (sensation)
Zdroj:	Journal of Fluid Mechanics. 649:19-43
ISSN:	1469-7645 0022-1120
DOI:	10.1017/s0022112009993351
Popis:	In this study we report discovery of a new type of water bell. This is formed by impinging a vertical liquid jet on to the underside of a large horizontal flat plate. After impact, the liquid spreads radially along the plate before falling at an abrupt unspecified radius. This falling liquid may then coalesce to form a curtain which encloses a volume of air. When the flow rate of the impinging jet is altered from the value at initial formation, a pronounced hysteretic effect in the water bell shape can be observed. We present detailed observations of these new phenomena, including the size and nature of the flow underneath the plate and the shape of the liquid curtain. These observations are interpreted theoretically in a companion paper (Part 2, Button et al. vol. 649, 2010, pp. 45–68).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::070d36e992585316b894b989035ec359 https://doi.org/10.1017/s0022112009993351 Zobrazit plný text záznamu