Stability of an Isorotating Liquid Bridges between Equal Disks under Zero-gravity Conditions

Slobozhanin, L.A. and Perales Perales, José Manuel (1996). Stability of an Isorotating Liquid Bridges between Equal Disks under Zero-gravity Conditions. "Physics of Fluids", v. 8 (n. 9); pp. 2307-2318. ISSN 1070-6631.

Description

Title: Stability of an Isorotating Liquid Bridges between Equal Disks under Zero-gravity Conditions
Author/s:
  • Slobozhanin, L.A.
  • Perales Perales, José Manuel
Item Type: Article
Título de Revista/Publicación: Physics of Fluids
Date: August 1996
ISSN: 1070-6631
Volume: 8
Subjects:
Faculty: E.U.I.T. Aeronáutica (UPM)
Department: Vehículos Aeroespaciales [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (683kB) | Preview

Abstract

The stability of the relative equilibrium of an isorotating axisymmetric liquid bridge between two equal‐radius coaxial disks under zero‐gravity conditions has been investigated in detail. The free surface is assumed to be pinned to the edges of the disks and in equilibrium and only perturbations compatible with this pinning are considered. In the plane of the dimensionless variables characterizing the liquid bridge length and the liquid bridge volume, the stability regions for a set of values of the Weber number have been calculated. The stability region structure and the nature of critical perturbations change when the Weber number, W, passes through the values W0 (2.05<W0<2.06) and W1 (2.44<W1<2.45). It has been found that, for W<W0, the stability region is connected, and the neutral stability may take place with respect to nonaxisymmetric perturbations as well as to axisymmetric ones. In the latter case, it has been established whether the critical axisymmetric perturbations are reflectively symmetric or reflectively antisymmetric about the equatorial plane. When the increasing Weber number passes through the value W0, the stability region breaks into two disconnected parts. The first exists for all Weber numbers larger than W0. For the states belonging to the boundary of this part, only nonaxisymmetric perturbations are critical. The second part exists only for Weber numbers between W0 and W1. Its boundary is determined by the states that may be neutrally stable to nonaxisymmetric perturbations or to axisymmetric ones. The characteristics of the shape of the neutrally stable surfaces have been calculated for a wide range of the Weber number

More information

Item ID: 4843
DC Identifier: http://oa.upm.es/4843/
OAI Identifier: oai:oa.upm.es:4843
Deposited by: Memoria Investigacion
Deposited on: 05 Nov 2010 12:23
Last Modified: 17 Jan 2017 12:08
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM