The Dripping Phenomena of a Rotating Liquid Jet

  • 郭 宇杰

Student thesis: Master's Thesis

Abstract

This research analyzes the breakup patterns of the ethanol-water jet of different volume concentration and the characteristic of a liquid jet under various conditions (e g various flow rates and rotating speeds) In the first part of the study various concentrations of ethanol are used to analyze the characteristics of a liquid jet for various fluid properties and jet diameters The surface tension is the main factor which causes the jet breakup A smaller surface tension leads to a longer breakup length The viscosity also has an effect The breakup length of the fluid will slightly become longer if the fluid has a larger viscosity A new correlation function is found based on the experimental data The correlation works well for ethanol-water mixture but it fails to predict the breakup length of water for small-diameter nozzles In the second part of the study the characteristics of a dripping flow in a breakup process for various flow rates rotating speeds and inner nozzle diameters are investigated It was found that the rotating speed and flow rate affect the breakup time A high rotating speed causes an obvious deviation of the liquid column from the center-line of the nozzle A more significant capillary rise occurs when the nozzle diameter is smaller The parameters that make the breakup of the liquid column less stable are discussed
Date of Award2018 Aug 21
Original languageEnglish
SupervisorTa-Hui Lin (Supervisor)

Cite this

The Dripping Phenomena of a Rotating Liquid Jet
宇杰, 郭. (Author). 2018 Aug 21

Student thesis: Master's Thesis