Influence of downstream distance on the drop size characteristics of an evaporative liquid spray in a convective gaseous medium

Journal Article · Sun Mar 01 04:00:00 EST 1992 · Journal of Energy Resources Technology; (United States)

OSTI ID:5320699

Som, S K; Sengupta, S P; Mitra, A K; Dash, S K ^[1]

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1. Design Analysis Div., Central Mechanical Engineering Research Inst., Durgapur (IN)

This paper reports that numerical studies have been made to evaluate the interdependence of drop size characteristics and evaporation histories of an atomized liquid spray in a convective medium of uniform free stream at high temperature. With the help of a discrete droplet evaporation model, both the actual drop size distribution and the apparent one, that could have been obtained in practice by light-scattering technique, have been determined numerically at different downstream locations perpendicular to the spray axis. Variations of actual and apparent mass mean diameter and the evaporation rate with the axial distance of the spray have been established. Finally, the influences of pertinent input parameters, namely, the initial Reynolds number of the spray, the ratio of free stream to initial drop temperature and the ratio of free stream to initial drop velocity on the mean diameter and evaporation histories have been recognized.

• OSTI ID: 5320699
• Journal Information: Journal of Energy Resources Technology; (United States), Journal Name: Journal of Energy Resources Technology; (United States) Vol. 114:1; ISSN 0195-0738; ISSN JERTD
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
ATOMIZATION
CONVECTION
DISTANCE
DROPLETS
ENERGY TRANSFER
EVAPORATION
HEAT TRANSFER
MASS TRANSFER
PARTICLES
PHASE TRANSFORMATIONS
REYNOLDS NUMBER
SIMULATION
SIZE
SPRAYS