[+] Author and Article Information
Jyoti Prakash

Sector 125, Amity University Uttar Pradesh NOIDA E1- bllock, Room No 112A NOIDA, UP 201313 India jprakash@amity.edu

Basant Singh Sikarwar

Amity University Noida Noida, UP 201313 India bssikarwar@amity.edu

1Corresponding author.

Contributed by the Heat Transfer Division of ASME for publication in the Journal of Thermal Science and Engineering Applications. Manuscript received October 17, 2018; final manuscript received March 3, 2019; published online xx xx, xxxx. Assoc. Editor: Gerard F. Jones.

ASME doi:10.1115/1.4043093 History: Received October 17, 2018; Accepted March 04, 2019


The evaporation of sessile drop has a wide range of application that includes printing, washing, cooling and coating. Due to the complex nature of drop evaporation process, this phenomenon is reliant on several parameters like ambience and physio-chemical properties of liquid and surface. In the present study, a mathematical model of water droplet evaporation on an engineered Aluminum surface is developed. The data obtained from the simulation is validated against the data obtained from an experimental study and the results already accessible from the literature demonstrating similar experiments. Post-validation, the effect of surface wettability and environment conditions on the evaporation rate is estimated. It is inferred from the outcomes that the temperature at the apex of the drop vary linearly with increasing relative humidity. Droplet volume has a significant impact on the evaporation rate and comparatively higher evaporative flux for smaller volume of the drop with large contact angles. This unveils the possibility of achieving the required evaporation rate by controlling surface wettability and relative humidity conditions near the drop.

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