, Volume 49, Issue 1, pp 116-122
Date: 22 Feb 2011

Structure of pulse dispersed jet upon change in its frequency characteristics

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Intensities of heat and mass transfer for continuous and pulse spray in interaction with the vertical surface of a heat exchanger differ considerably from one another when the time-averaged spraying rate [1–6] is kept constant. This difference is determined by characteristic properties of gas-drop flows of continuous and pulse sprays and their interaction with the heat-exchanging surface. Results of experimental studies of basic hydrodynamic parameters of pulse drop flow are presented: velocity and drop size dispersions, spectral characteristics of the kinetic energy of the spray at various distances from the source, and influence of the gas concurrent flow on these parameters. A difference in the heat transfer is shown upon variation of the pulse drop flow parameters from the heat transfer at the stationary supply of spray.

Original Russian Text © A.D. Nazarov, A.F. Serov, V.I. Terekhov, 2011, published in Teplofizika Vysokikh Temperatur, 2011, Vol. 49, No. 1, pp. 116–121.