A comprehensive review of modeling water solidification for droplet freezing applications

S Akhtar, M Xu, M Mohit, AP Sasmito - Renewable and Sustainable Energy …, 2023 - Elsevier
Various mathematical approaches undertaken to model all stages of droplet freezing are
reviewed. The literature is rife with theoretical, experimental, and numerical treatments of the …

Unsteady hybrid nanofluid (, MWCNTs/blood) flow between two rotating stretchable disks with chemical reaction and activation energy under the influence of …

M Qayyum, S Afzal, MR Ali, M Sohail, N Imran… - Scientific Reports, 2023 - nature.com
Hybrid nanofluids are extensively analyzed in recent studies due to their better performance
in numerous areas such as heat and mass transfer enhancement, biological fluid movement …

Experimental and unified mathematical frameworks of water-ice phase change for cold thermal energy storage

M Xu, Y Gao, F Fang, S Akhtar, BA Chaedir… - International Journal of …, 2022 - Elsevier
Cold thermal energy storage (CTES) is a process that supplies cold thermal energy to a
medium for storage and extracts it whenever is needed. The storage medium is phase …

Asymptotic analysis of a two-phase Stefan problem in annulus: Application to outward solidification in phase change materials

M Xu, S Akhtar, AF Zueter, MA Alzoubi… - Applied Mathematics …, 2021 - Elsevier
Stefan problems provide one of the most fundamental frameworks to capture phase change
processes. The problem in cylindrical coordinates can model outward solidification, which …

Consistent description of phase-change processes in substances with density contrast: a finite volume based approach

I Ahmad, R Kumar, U Ghosh, A Bhargav - International Journal of Thermal …, 2023 - Elsevier
Phase-change is an important phenomenon and usually it causes a concomitant change in
the density of the underlying materials. As applications of phase-change grow, it is important …

Development of a multi-stage model for freezing of a suspended binary solution droplet

M Xu, S Akhtar, M Mohit, AP Sasmito - … Journal of Heat and Mass Transfer, 2024 - Elsevier
The importance of developing spray freeze-drying technology for extending the shelf life of
biological and pharmaceutical materials has never been greater, given the increasing food …

3-D computational study of a single droplet impacting the random rough surface: Hydromechanical solidification

F Wang, F Guo, M Tang, X Zhang, Z Zhang, S Li… - International Journal of …, 2024 - Elsevier
The spontaneous spreading of water droplets on a low-temperature solid surface is
ubiquitous in nature and critical to numerous industrial applications, but its mechanism …

Asymptotic analysis of a two-phase Stefan problem in an annulus with the convective boundary

M Xu, S Akhtar, M Mohit, AF Zueter… - International Journal of …, 2024 - Elsevier
The Stefan problem (whether in its classical form or not) has assumed that the interface
moves instantaneously with time as a prescribed initial condition. This assumption is valid in …

Real-time observation of the freezing stage of the mannitol solution using high-resolution optical microscopy

L Chun, M Sha, Z Naijun, L Zhiqiang… - International Journal of …, 2023 - Elsevier
Vacuum freeze-drying has been expanding its influence in many fields, and the freezing
stage is of utmost importance for the freeze-drying process. However, the limited …

A novel crystal growth model with nonlinear interface kinetics and curvature effects: sensitivity analysis and optimization

S Akhtar, M Xu, AP Sasmito - Crystal Growth & Design, 2021 - ACS Publications
With the ever-increasing engineering and biological applications of rapid droplet
solidification on superhydrophobic surfaces, developing accurate dendritic growth models …