All Outputs (14)

Numerical investigation of bubble dynamics and flow boiling heat transfer in cylindrical micro-pin-fin heat exchangers (2024)
Journal Article

Micro-pin-fin evaporators are a promising alternative to multi-microchannel heat sinks for two-phase cooling of high power-density devices. Within pin-fin evaporators, the refrigerant flows through arrays of obstacles in cross-flow and is not restric... Read More about Numerical investigation of bubble dynamics and flow boiling heat transfer in cylindrical micro-pin-fin heat exchangers.

Coupled atomistic–continuum simulations of nucleate boiling (2024)
Journal Article

Boiling is a striking example of a multiscale process, where the dynamics of bubbles is governed by the interplay between the molecular interactions responsible for nucleation, and the macroscale hydrodynamic and thermal boundary layers. A complete d... Read More about Coupled atomistic–continuum simulations of nucleate boiling.

Understanding Inconsistencies in Thermohydraulic Characteristics Between Experimental and Numerical Data for DI Water Flow Through a Rectangular Microchannel (2024)
Journal Article

Facing discrepancies between numerical simulation, experimental measurement, and theory is common in studies of fluid flow and heat transfer in microchannels. The cause of these discrepancies is often linked to the transition from the macroscale to t... Read More about Understanding Inconsistencies in Thermohydraulic Characteristics Between Experimental and Numerical Data for DI Water Flow Through a Rectangular Microchannel.

Dynamics of long bubbles propagating through cylindrical micro-pin fin arrays (2023)
Journal Article

The dynamics of two-phase flows confined within complex and non-straight geometries is of interest for a variety of applications such as micro-pin fin evaporators and flow in unsaturated porous media. Despite the propagation of bubbles in straight ch... Read More about Dynamics of long bubbles propagating through cylindrical micro-pin fin arrays.

Conjugate heat transfer effects on flow boiling in microchannels (2022)
Journal Article

This article presents a computational study of saturated flow boiling in non-circular microchannels. The unit channel of a multi-microchannel evaporator, consisting of the fluidic channel and surrounding evaporator walls, is simulated and the conjuga... Read More about Conjugate heat transfer effects on flow boiling in microchannels.

Stochastic design for additive manufacture of true biomimetic populations (2022)
Journal Article

Current biomimetic designs do not incorporate naturally occurring variance. Instead, the same unit cell is repeatedly copied and pasted to create a pattern. Existing stochastic designs use the same randomness for all parameters. However, nature teach... Read More about Stochastic design for additive manufacture of true biomimetic populations.

Liquid film distribution around long gas bubbles propagating in rectangular capillaries (2022)
Journal Article

We present a systematic analysis of the bubble and liquid film dynamics corresponding to the propagation of long, isolated gas bubbles, within rectangular capillary channels of cross-sectional aspect-ratio ranging from 1 to 8. Direct numerical simula... Read More about Liquid film distribution around long gas bubbles propagating in rectangular capillaries.

Five simple tools for stochastic lattice creation (2021)
Journal Article

Lattices are increasingly used in engineering applications. They can reduce weight in aircraft components, increase the efficiency of heat exchangers and are used as medical implants. Typically a regular and graded lattice, where the unit cells are i... Read More about Five simple tools for stochastic lattice creation.

Dynamics of long gas bubbles rising in a vertical tube in a cocurrent liquid flow (2019)
Journal Article

© 2019 American Physical Society. When a confined long gas bubble rises in a vertical tube in a cocurrent liquid flow, its translational velocity is the result of both buoyancy and mean motion of the liquid. A thin film of liquid is formed on the tub... Read More about Dynamics of long gas bubbles rising in a vertical tube in a cocurrent liquid flow.

Numerical analysis of slug flow boiling in square microchannels (2018)
Journal Article

© 2018 Elsevier Ltd Boiling heat transfer in micro-geometries has been studied extensively in the recent years as an efficient heat removal mechanism. Numerical simulations have been traditionally employed to resolve the small spatial and temporal sc... Read More about Numerical analysis of slug flow boiling in square microchannels.

Pore-scale analysis of the minimum liquid film thickness around elongated bubbles in confined gas-liquid flows (2017)
Journal Article

© 2017 Elsevier Ltd The fluid mechanics of elongated bubbles in confined gas-liquid flows in micro-geometries is important in pore-scale flow processes for enhanced oil recovery and mobilization of colloids in unsaturated soil. The efficiency of such... Read More about Pore-scale analysis of the minimum liquid film thickness around elongated bubbles in confined gas-liquid flows.

Undulations on the surface of elongated bubbles in confined gas-liquid flows (2017)
Journal Article

© 2017 American Physical Society. A systematic analysis is presented of the undulations appearing on the surface of long bubbles in confined gas-liquid flows. CFD simulations of the flow are performed with a self-improved version of the open-source s... Read More about Undulations on the surface of elongated bubbles in confined gas-liquid flows.

A CFD study of the parameters influencing heat transfer in microchannel slug flow boiling (2016)
Journal Article

© 2016 Elsevier Masson SAS Boiling heat transfer in microchannels has been investigated extensively in the last two decades. However, most results from independent experimental studies display a substantial disagreement on the influence of the flow c... Read More about A CFD study of the parameters influencing heat transfer in microchannel slug flow boiling.

Dynamics of isolated confined air bubbles in liquid flows through circular microchannels: an experimental and numerical study (2015)
Journal Article