Oscillatory incompressible fluid flow in a tapered tube with a free surface in an inkjet print head

Dong-Youn Shin, Paul Grassia, Brian Derby

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Oscillatory incompressible fluid flow with a free surface occurs in an inkjet print head. Due to complex physical fluid behavior, numerical simulations have been a common approach to characterize the pressure and velocity development in time and space. However, the cost of a numerical approach is high in terms of computational time such that approximate analytic approaches have been developed. In this paper, an approximate analytic solution for a tapered nozzle section is described with a proper downstream boundary condition and the physical behavior of the meniscus deformation is modeled with a simple "window" theory.
Original languageEnglish
Pages (from-to)98-109
Number of pages12
JournalJournal of Fluids Engineering
Volume127
Issue number1
DOIs
Publication statusPublished - 22 Mar 2005

Keywords

  • pressure
  • flow (dynamics)
  • computer simulation
  • nozzles
  • boundary-value problems
  • fluids
  • incompressible fluids
  • drops
  • deformation

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