T.G. Myers

Centre de Recerca Matemàtica

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Co-Authors

Francesc Font

Centre de Recerca Matemàtica

Sarah Mitchell

University of Limerick

Marc Calvo-Schwarzwälder

Zayed University

Abel Valverde

University of Oxford

Matthew G. Hennessy

University of Bristol

J. P. F. Charpin

University of Limerick

María Aguareles

University of Girona

Helena Ribera

Northwestern University

Alba Cabrera‐Codony

University of Girona

Brian Wetton

University of British Columbia

Cooperative Institutions

University of Wisconsin–Madison

133

Pacific Northwest National Laboratory

Columbia University

Los Alamos National Laboratory

Presbyterian Hospital

Synod Hospital

Lawrence Berkeley National Laboratory

Lawrence Livermore National Laboratory

Nevada National Security Site

Sandia National Laboratories California

Author Statistics

Papers

Citation

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A practical evaluation of the performance of Al2O3-water, TiO2-water and CuO-water nanofluids for convective cooling

International Journal of Heat and Mass Transfer (2018)

Fahad S. Alkasmoul Mushtaq T. Al-Asadi T.G. Myers H.M. Thompson Mark C. T. Wilson

Heat transfer enhancement

10.1016/j.ijheatmasstransfer.2018.05.072

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Citations (41)

Modeling the flow of water on aircraft in icing conditions

AIAA Journal (1998)

T.G. Myers Chris Thompson

10.2514/3.13926

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Citations (4)

Synthesis of Monodisperse Spherical Nanocrystals

T.G. Myers Vincent Cregan Revathi Bacsa Marc Calvo-Schwarzwälder Mario Fernández-Pendás

Nanoparticles, small units of matter with dimensions in the range1-100 nm, exhibit many advantageous size-dependent magnetic, electrical, chemical and optical properties, which are not observed at the micro scale or bulk. These properties are extremely sensitive to particle size, and thus the ability to produce monodisperse particles is critical. Due to its ease of use and flexibility, precipitation of nanoparticles from solution is one of the most widely used synthesis methods. The main disadvantage of this method is that the relationship between particle growth and system conditions is not fully understood. In practice, the optimal reaction conditions are usually ascertained empirically or intuitively. In this report we consider several different applied mathematical techniques to explain nanoparticle growth via the precipitation method. In particular, we describe the impact of size focussing and defocussing (or Ostwald ripening) on the evolution of the nanoparticle size distribution.

Dispersity

Ostwald ripening

Particle (ecology)

Length scale

10.33774/miir-2021-2qws1

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Citations (0)

A time-dependent model to determine the thermal conductivity of a nanofluid

Journal of Nanoparticle Research (2013)

T.G. Myers M. M. MacDevette Helena Ribera

Volume fraction

10.1007/s11051-013-1775-2

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Citations (16)

Cellular automaton model for substitutional binary diffusion in solids

arXiv (Cornell University) (2019)

Helena Ribera Brian Wetton T.G. Myers

In this paper we use the cellular automaton (CA) approach to model one-dimensional binary diffusion in solids. Employing a very simple state change rule we define an asynchronous CA model and take its continuum limit to obtain the governing equations of the problem. We show that in the limit where the number of cells tends to infinity the CA model approaches a continuous model derived in previous work. Thus, showing that the CA approach provides a new, simple method to study and model binary diffusion.

10.48550/arxiv.1911.08322

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Piped water cooling of concrete dams

J. P. F. Charpin T.G. Myers A. D. Fitt Neville Fowkes Y. Ballim

Piped water is used to remove hydration heat from concrete dams during construction. By examining simple models we obtain an estimate for the temperature rise along the pipe network and within the concrete. To leading order, for practically useful networks, the temperature distribution is quasi-steady, so that exact analytic solutions are obtained. The temperature in the water increases linearly with distance along the pipe and varies logarithmically with radial distance from the pipe in the concrete. Using these results we obtained estimates for the optimal spacing of pipes and pipe length. Some preliminary work on optimal network design has been done. This is work in progress.

Pipe network analysis

Water pipe

Source

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Citations (5)

The flow of power law fluids between parallel plates with shear heating

WIT transactions on engineering sciences (2006)

M. S. Tshehla T.G. Myers J. P. F. Charpin

A mathematical model for the flow and heat transfer between two parallel plates is studied, using the power law model.The flow due to a pressure gradient and flow due to a moving upper plate are investigated.In the derivation the Navier-Stokes and energy equations is reduced in line with the lubrication theory to provide scalar differential equations.The velocity and temperature profiles are determined analytically and the results show that the power law index n = 1 compares favourably with Newtonian profiles.The temperature field is increasing when n increases.The Brinkman number Br, also shows a significance increase of the temperature field when Br increases.

Power-law fluid

Temperature Gradient

Pressure gradient

Lubrication theory

10.2495/afm06042

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Citations (0)

Variable viscosity squeeze films and bubble removal in the manufacture of panel material

International Journal of Non-Linear Mechanics (2002)

T.G. Myers

10.1016/s0020-7462(01)00039-7

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Integrated Application of the Collaborative Trajectory Options Program

2015 IEEE/AIAA 34th Digital Avionics Systems Conference (DASC) (2019)

Philip J. Smith Mark Evans Amy Spencer Robert V. Hoffman T.G. Myers

This paper presents use cases for a Concept of Operations (CONOPS) to support more effective pre-departure reroutes in order to reduce departure delays. It describes three different use cases characterizing the use of the Collaborative Trajectory Options Program (CTOP) [1] to manage traffic flows in order to deal with convective weather impacting departures. The first illustrates how CTOP could be used as a replacement for the use of Playbook plays, supporting a more surgical approach to deal with an en route convective weather constraint. The second illustrates how CTOP could be used for the tactical management of departures from a single airport, indicating how it could be integrated with TBFM, PDRR and airport surface management. The third use case provides a detailed example of an interaction design to support the planning of a CTOP Traffic Management Initiative (TMI) focusing on the management of departures in an integrated manner from a number of departure airports. In the discussion of the third use case, a prototype interface is presented to indicate requirements for the supporting interaction design.

Air Traffic Management

10.1109/dasc43569.2019.9081801

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Citations (0)

Time-dependent modelling of nanofluid-based direct absorption parabolic trough solar collectors

Solar Energy (2018)

G.J. O’Keeffe Sarah Mitchell T.G. Myers Vincent Cregan

Parabolic trough

Dimensionless quantity

10.1016/j.solener.2018.08.073

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Citations (14)