Abstract
The current numerical study aimed for analayzing heat transfer of a spherical water droplet placed in a rectangular duct. The problem particularly deals with air-cooling of the droplet. The computational fluid dynamic technique is used to treat the problem. In order to study the problem, the effect of evaporation on the droplet's heat transfer is taken into consideration to make the problem more realistic. Moreover, various parameters like the inlet velocity and the temperature of the upstream are numerically checked. It is found out that with involving evaporation, the mean temperature of the droplets increases in comparison with the case that there is no evaporation involved. The outcomes of the current study offer useful and deep insight into the evaporative cooling of a water droplet.
Highlights
The problem of multi-phase flow and an air-water interface is seen in a wide variaty of natutal and engineering applications ranging from direct evaporative cooler to spray room to printers to human body (Mahdavi et al, 2020; Abed et al, 2020a, 2020b; Jia & Qiu, 2003; Betelin et al, 2012; Semenov et al, 2011)
The presence of a droplet in a surrounding environment with different features is of great importance (Jia & Qiu, 2003; Semenov et al, 201; Norouzi et al, 2019; Fisenko & Khodyko, 2009), The problem can be even more complicated with the existence of heat transfer between two lquids and cooling phenomenon which is somewhat pratical
Chen et al (2016) numerically assessed the dynamics and evaporative cooling of a droplet which is impinged to a heated surface
Summary
The problem of multi-phase flow and an air-water interface is seen in a wide variaty of natutal and engineering applications ranging from direct evaporative cooler to spray room to printers to human body (Mahdavi et al, 2020; Abed et al, 2020a, 2020b; Jia & Qiu, 2003; Betelin et al, 2012; Semenov et al, 2011). The presence of a droplet in a surrounding environment with different features is of great importance (Jia & Qiu, 2003; Semenov et al, 201; Norouzi et al, 2019; Fisenko & Khodyko, 2009), The problem can be even more complicated with the existence of heat transfer between two lquids and cooling phenomenon which is somewhat pratical. Pan et al (2013) studied the mechanisms of water droplet evaporation in case of hydrophobic and superhydrophobic condition. Chen et al (2016) numerically assessed the dynamics and evaporative cooling of a droplet which is impinged to a heated surface. The process takes place as air passess over a stationary droplet (water) located in an enclosure. The application of such problem can be seen in cooling towers and spraying.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
