Modelling of heat and mass transfer from spheroidal drops with non-uniform surface temperature. (June 2018)

• Record Type: Journal Article
• Authors: Tonini, Simona; Cossali, Gianpietro Elvio
• Is Part Of: International journal of heat and mass transfer. Volume 121(2018)
• Page Start: 747
• Page End: 758
• Publication Date: 2018-06
• Subjects: Heat -- Transmission -- Periodicals; Mass transfer -- Periodicals; Chaleur -- Transmission -- Périodiques; Transfert de masse -- Périodiques; Electronic journals; 621.4022
• DOI: 10.1016/j.ijheatmasstransfer.2018.01.040
• Languages: English
• ISSNs: 0017-9310

Abstract

Highlights: Effect of non-uniform surface temperature on drop heat and mass transfer. Heat and mass transfer modelling of single-component spheroidal drops. Analytical/numerical coupled solution of species/energy conservation equations. Effect of temperature disuniformity on local and global heat transfer coefficient. Abstract: The heating and evaporation of single component spherical and spheroidal (oblate and prolate) drops in gaseous quiescent environment are modelled, accounting for the effect of a non-uniform distribution of the temperature at the drop surface. The analytical solution to the species conservation equations in the proper coordinate system (spherical/spheroidal) is used to numerically solve the energy equation. The effect of temperature disuniformity on the local non-dimensional heat transfer coefficient and global heat and evaporation rates is calculated for different drop temperature disuniformity, mean surface temperature, drop deformation, gas temperature and pressure and liquid species.