Rivulet flow on the outer surface of an inclined cylinder

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A study of the three-dimensional flow of a liquid film (rivulet) over the external part of an inclined cylinder was conducted for liquids with various physical properties. Patterns of the flow regimes were constructed. Good agreement is observed between the experimental data on the thickness and wall friction with the calculation with an asymptotic model in the case of a waveless rivulet. A comparison of the evolution of natural waves on rivulets with the theory of waves of maximal growth shows good agreement for small Re numbers. During the experiments, the wave characteristics of excited waves on a rivulet were investigated. The thickness, amplitude, frequency, and phase velocity of the waves over a wide range of variable parameters are given. Phase velocity integrated functions of the amplitude are constructed for various liquids. The friction on the cylinder wall is measured in the presence of natural and excited waves. The effects of wave regimes on the average values and RMS (root-mean-square) friction pulsations are studied.

Original languageEnglish
Pages (from-to)259-272
Number of pages14
JournalJournal of Engineering Thermophysics
Volume17
Issue number4
DOIs
Publication statusPublished - 10 Nov 2008
Externally publishedYes

ASJC Scopus subject areas

  • Environmental Engineering
  • Modelling and Simulation
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Fingerprint Dive into the research topics of 'Rivulet flow on the outer surface of an inclined cylinder'. Together they form a unique fingerprint.

  • Cite this