Stability of the film flow passing round the cross-section elements in the area of high density irrigation

Abstract

The paper studies the loss of stability of a liquid film using regular surface roughness. The model of the breakdown process is described and the conditions for the formation of a liquid film breakdown are determined experimentally. It was found that there are two characteristic modes, namely drop and film regimes. Using the methods of thermal anemometry, data were obtained on the distribution of the droplet sizes after a film breakdown and the dependence of the We number on the projection arrangement height was plotted. © Published under licence by IOP Publishing Ltd.This work was supported by the Russian Foundation for Basic Research, grant No. 17-38-50069