IMPINGEMENT OF AN UNSTEADY 2-PHASE JET ON UNHEATED AND HEATED FLAT PLATES


OZDEMIR I. , WHITELAW J.

JOURNAL OF FLUID MECHANICS, vol.252, pp.499-523, 1993 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 252
  • Publication Date: 1993
  • Doi Number: 10.1017/s0022112093003854
  • Title of Journal : JOURNAL OF FLUID MECHANICS
  • Page Numbers: pp.499-523

Abstract

This paper is concerned with an experimental investigation of the oblique impingement of an unsteady, axisymmetric two-phase jet on heated surfaces. Size and velocity were measured simultaneously with a phase-Doppler velocimeter, and the spatial distributions over the wall jet were found to be correlated with the interfacial activities as inferred from vertical velocity measurements in the vicinity of the wall. These results are discussed together with size measurements by a laser-diffraction technique to quantify the effect of the approach conditions of the inflowing jet droplet field and wall temperature in relation to mechanisms of secondary atomization.