Modern Trends in Multi-Phase Flow and Heat Transfer

Dear Colleagues,

Heat transfer and multi-phase flows are fundamental in classic and burgeoning engineering branches respectively. When generating new engineering innovations, it is always necessary to understand the basics and theories of multiphase flow and heat transfer. Heat transfer and multi-phase flows research are advancing more quickly than ever before as a result of the explosive rise of numerous essential multidisciplinary fields and technologies. Miniaturization of equipment and components, for instance, is increasing across a broad variety of engineering applications as a result of the continuous development of manufacturing procedures. Since the late twentieth century, the prominence of microscopic level and nanostructured multi-phase flow and thermal phenomenon has increased in both conventional industries and highly technical fields notably micro-fabricated fluidic devices, high heat flux cooling, microelectronics, and micro-heat transfer. In contrary, multi-phase flow and thermal transmission processes at the micro- and nanoscales differ significantly from those in typical and large-scale systems. Numerous research has been undertaken over the last several decades to investigate complex multi-phase and thermal transport processes and to suggest novel mechanisms, models, and theories. However, there are still a great deal of theoretical and practical questions to be answered in this significant field. Additionally, multidisciplinary research fields pertinent to Heat transfer and multi-phase flows are expanding quickly. Nanotechnology research in the areas of multi-phase nano - fluid flow and thermal dynamics has grown rapidly during the last decade. However, it has also presented additional obstacles since the current research has produced contradictory findings. Since there is still a significant knowledge gap regarding the foundations and mechanics of two-phase nano - fluid flow and heat transfer, there is an essential need for study in this area. Furthermore, one of the greatest difficulties is discovering how to use multi-phase flow and thermal transport with nanofluids in real-world engineering conditions. This happened because the underlying physical processes are not completely known, and the findings of the available experimental research are inconsistent with one another. All of these growing academic specialties need expertise with the basics, concepts, and applications of microscale and nanoscale multiphase flow and heat conduction dynamics.

In this Special Issue, manuscripts on experimental and theoretical studies pertaining to contemporary developments in the disciplines of

1. Fundamental challenges, technological advancements, and problems in thermal transfer, critical heat flux, and multi-phase flow with nanofluids dynamics.
2. The significance of transient power spikes on the temperature transfer coefficient undergoing flow boiling throughout single micro-scale conduits.
3. Evaporation, Marangoni, nanofluids, and thermocapillary convection.
4. Drop impact on uneven or constructed, rough surfaces (i.e., flexible, textile surfaces, and porous)
5. Convective heat exchange in a porous thermally layer saturated with Newtonian and non-Newtonian nanofluids.
6. The influence of heat on thermophysical properties in sheared nanoparticle suspensions.
7. Advanced measurement techniques in this field.
8. Adhesion and Wettability of complex surfaces and/or fluids.

We believe that this issue will give readers in the scientific community with an overall perspective and up-to-date results that will eventually assist the industrial sector in terms of its specialized market niches and end consumers.

Prof. Dr. Mohammad Mehdi Rashidi
Dr. Muhammad Mubashir Bhatti
Guest Editors

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• entropy
• fluid flow towards a porous media
• heat and mass transfer
• nanofluids
• computational simulations of multi-phase flows
• thermal transferring in nanostructures
• thermal measurement technologies