scholarly journals Theoretical and experimental study of the vibration of axisymmetric viscous liquid bridges

1992 ◽  
Vol 4 (6) ◽  
pp. 1110-1130 ◽  
Author(s):  
J. M. Perales ◽  
J. Meseguer
Keyword(s):  
Experimental Study ◽  
Viscous Liquid ◽  
Liquid Bridges

Tribological Study of Polymer Composite Forming Using Model Experiments and Real Composites

2014 ◽  
Vol 611-612 ◽  
pp. 300-305 ◽  
Author(s):  
Olga Smerdova ◽  
Michael P.F. Sutcliffe
Keyword(s):  
Experimental Study ◽  
Polymer Composites ◽  
Viscous Liquid ◽  
Polymer Composite ◽  
Contact Area ◽  
Essential Feature ◽  
The Other ◽  
Carbon Fabric ◽  
Simultaneous Application ◽  
Composite Forming

This experimental study is focused on identification of tribological mechanisms acting during forming of polymer composites. The range of relevant processes includes fibre placement, tape lay-up, moulding, draping, and RTM. Two types of tribological experiments, relying both on simultaneous application of compression and shear loadings, are carried out. Firstly, model macromechanical tests are undertaken on plastic rods of millimetric diameter immersed in a viscous liquid, representing composite fibres and matrix, respectively. By careful simulation of forming conditions, this experiment helps to identify the friction phenomena occurring in real composites. On the other hand, the micromechanics of forming processes is studied through a microscopic experiment on real carbon fabric. This material is clamped between two glass plates and pulled in opposing directions in the plane of the fabric. It is hypothesized that the evolution of contact area due to shearing that can be measured in this experiment is an essential feature of the tribology of forming processes, a topic which hitherto has not been investigated.

scholarly journals Формирование и деформация капель жидкости в микроканалах

2020 ◽  
Vol 46 (15) ◽  
pp. 18
Author(s):  
Ф.В. Роньшин ◽  
Ю.А. Дементьев ◽  
Е.А. Чиннов
Keyword(s):  
Experimental Study ◽  
Flow Regime ◽  
Cross Section ◽  
Weber Number ◽  
Rectangular Cross Section ◽  
Critical Value ◽  
Drop Formation ◽  
Liquid Bridges ◽  
Liquid Moving ◽  
Side Walls

An experimental study of drop formation in narrow horizontal microchannels with rectangular cross section and a height from 50 to 150 micrometers was performed. It is shown that in these channels there is a new flow regime when drops moving along the microchannel, which are vertical liquid bridges. Three mechanisms of the formation of such drops are distinguished: the formation directly near the liquid nozzle, the separation of droplets from the liquid moving along the side walls of the channel, and due to the destruction of strongly deformed drops and horizontal liquid bridges. It was found that the deformation of drops increases with an increase in the Weber number. It is shown that when the first critical value of the Weber number is reached, the drops begin to deform, and when the second Weber number is reached, they break.

A Numerical and Experimental Study of Bubble Deformation on the Surface in a Shear Flow of Viscous Liquid

2019 ◽  
Vol 45 (12) ◽  
pp. 1194-1196
Author(s):  
Yu. A. Pityuk ◽  
S. P. Sametov ◽  
A. I. Mullayanov ◽  
O. A. Abramova
Keyword(s):  
Experimental Study ◽  
Shear Flow ◽  
Viscous Liquid ◽  
Bubble Deformation

scholarly journals Linear oscillations of axisymmetric viscous liquid bridges

2000 ◽  
Vol 51 (5) ◽  
pp. 701-731 ◽  
Author(s):  
J. A. Nicolás ◽  
J. M. Vega
Keyword(s):  
Viscous Liquid ◽  
Liquid Bridges

Experimental study on the cavity dynamics of oblique impact of sphere on a viscous liquid floating on water

2019 ◽  
Vol 194 ◽  
pp. 106597 ◽  
Author(s):  
Tiezhi Sun ◽  
Heng Wang ◽  
Li Zou ◽  
Zhi Zong ◽  
Haitao Li
Keyword(s):  
Experimental Study ◽  
Viscous Liquid ◽  
Oblique Impact

One‐dimensional models for slender axisymmetric viscous liquid bridges

1996 ◽  
Vol 8 (11) ◽  
pp. 2837-2846 ◽  
Author(s):  
F. Javier García ◽  
Antonio Castellanos
Keyword(s):  
Viscous Liquid ◽  
Liquid Bridges ◽  
One Dimensional ◽  
Dimensional Models
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