Numerical study of the transient deformation and drag characteristics of a decelerating droplet

Qiulin Qu, Pingchang Ma, Peiqing Liu, Shaowei Li, Ramesh K. Agarwal

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A numerical study of the transient deformation and drag properties of impulsively started decelerating drops in axisymmetric flows is conducted. The incompressible Navier-Stokes equations coupled with VOF (Volume of Fraction) model are solved. The differences in the deformation and drag characteristics between the accelerating and decelerating drops are enunciated clearly. The Weber number We has a great influence on the drag properties of the round drops, however the effects of the Ohnesorge number Oh is small. A dynamic droplet drag model is provided based on the CFD results to predict the drag coefficient of a decelerating drop.

Original languageEnglish
Title of host publication45th AIAA Fluid Dynamics Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
Pages1-26
Number of pages26
ISBN (Print)9781624103629
DOIs
StatePublished - 2015
Event45th AIAA Fluid Dynamics Conference, 2015 - Dallas, United States
Duration: Jun 22 2015Jun 26 2015

Publication series

Name45th AIAA Fluid Dynamics Conference

Conference

Conference45th AIAA Fluid Dynamics Conference, 2015
Country/TerritoryUnited States
CityDallas
Period06/22/1506/26/15

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