Article
Geochemistry & Geophysics
F. Paglialunga, F. Passelegue, S. Latour, A. Gounon, M. Violay
Summary: Fluids in the Earth's crust affect the stability and dynamics of faults, and viscous fluids have been found to play a significant role in fault reactivation and earthquake ruptures. In experiments using analogue material, it was discovered that the presence of viscous lubricants along faults reduces frictional resistance, increases nucleation length, and decreases fracture energy. Furthermore, the higher the viscosity of the fluids, the greater the reduction in frictional strength and increase in nucleation length.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2023)
Article
Engineering, Chemical
K. Foo, Y. Y. Liang, C. K. Tan, G. A. Fimbres Weihs
Summary: This study used CFD to simulate the effect of different spacer profiles and configurations on flux enhancement generated by unsteady shear strategies, and found that combining a submerged spacer with forced-slip resulted in the largest flux increase.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Physics, Multidisciplinary
Nur Azlina Mat Noor, Sharidan Shafie, Mohd Ariff Admon
Summary: This study investigates the influences of chemical reaction and viscous dissipation on the hydromagnetic squeeze flow of Jeffrey fluid in porous medium using numerical approach. The results show that wall shear stress and fluid velocity increase as the plates approach each other. Additionally, an increase in Hartmann number and ratio of relaxation/retardation times leads to a decrease in velocity, temperature, and concentration profile.
Article
Engineering, Multidisciplinary
A. Al-Zubaidi, Hajar Abutuqayqah, Bilal Ahmad, Sadaf Bibi, Tasawar Abbas, S. Saleem
Summary: In this study, the mathematical analysis of slip conditions on electrically conducting nanofluid over a vertically stretching sheet is presented, with consideration of various influencing factors. By making suitable transformations to the model equations, the calculations are made more convenient. The effects of different parameters on velocity, concentration, and temperature are investigated, and the rates of momentum, heat, and mass transfer near the stretching surface are observed.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Thermodynamics
N. Parveen, M. Awais, Saeed Ehsan Awan, Sayyar Ali Shah, Aihua Yuan, M. Nawaz, Rizwan Akhtar, M. Y. Malik
Summary: The study evaluates the credibility of numerical results for the peristaltic mechanism of conductive nanofluid flowing through an asymmetric channel, considering heat and mass transfer mechanisms. Non-magnetic chemotactic microorganisms are used to enhance the stability of the nanofluid. Viscous dissipation plays a significant role in diffusion of momentum of the wall and entropy generation in the system.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Mechanics
Christopher C. Tisdell
Summary: Recently, Mandal and Ghosh (Phys. Fluids 35, 047121, 2023) presented perturbation solutions for viscous flow in porous channels with a slip condition limited to slow wall dilation-contraction rates. In this study, we demonstrate that this slowness assumption can be completely eliminated. By doing so, we develop a more widely applicable and accurate perturbation scheme for all dilation-contraction rates. Our approach involves generating new exact solutions to the linear, inviscid problem with slip condition and utilizing them to construct more accurate perturbation expansions for the nonlinear flow model.
Article
Engineering, Multidisciplinary
Suhong Liu, Dariush Bahrami, Rasool Kalbasi, Mehdi Jahangiri, Ye Lu, Xuelan Yang, Shahab S. Band, Kwok-Wing Chau, Amir Mosavi
Summary: This study investigated laminar nanofluid flow in a microchannel with a discontinuous-boundary condition. The results showed that applying the discontinuous-boundary condition can enhance heat transfer and entropy generation, especially at higher Reynolds numbers.
ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS
(2022)
Article
Mathematics, Applied
M. Ijaz Khan, Faris Alzahrani
Summary: This study focuses on the optimization of nanoparticles in thermal applications, with an emphasis on the impact of curvature and slip parameters on velocity changes and Bejan number increases.
APPLIED MATHEMATICS AND COMPUTATION
(2022)
Article
Physics, Multidisciplinary
Bidyasagar Kumbhakar, Susmay Nandi, Ali J. Chamkha
Summary: The current study explores the unsteady stagnation point flow of a hybrid nanofluid over a moving and convectively heated stretching cylinder under the influence of oblique Lorentz force. The study considers various factors such as velocity slip, Joule dissipation, thermal radiation, viscous dissipation, and internal heat generation. Numerical solutions are obtained and the physical impacts of different parameters on the velocity and temperature of the nanofluid are explored. Regression analysis is also performed to determine the dominant physical parameters affecting the skin-friction coefficient and Nusselt number.
CHINESE JOURNAL OF PHYSICS
(2022)
Article
Thermodynamics
Shuguang Li, Sana Akbar, Muhammad Sohail, Umar Nazir, Abha Singh, Mashael Alanazi, Ahmed M. Hassan
Summary: This study focuses on the application of magnetized hybrid nanofluid in engineering and advanced industrial processes, and investigates the effect of suspended nano-size particles on the fluid flow using buoyancy and viscous dissipation. A numerical model of three-dimensional hybrid nanofluid flow is developed, considering the heat transmission phenomenon and the influence of parameters such as magnetic parameter M, slip parameter K, rotation parameter λ, and buoyancy parameter λb. The velocity and temperature distributions are determined using the Runge-Kutta (4th order) method, and the influence of various parameters on the flow behavior is graphically presented. The results are validated numerically and will contribute significantly to the field of fluid mechanics.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Engineering, Geological
Feili Wang, Kaiwen Xia, Wei Yao, Shuhong Wang, Chonglang Wang, Zhanguo Xiu
Summary: This study presents an experimental method to simulate slip shear failure along rock discontinuities, conducted by dynamic direct shear experiments using a dynamic shear apparatus combined with a high-speed digital camera. The effects of shear velocity and normal stress on rough rock discontinuities are analyzed, revealing that slip rate is linearly proportional to shear velocity and decreases with increasing normal stress. A dynamic failure criterion is developed considering both surface roughness and dynamic loading, providing a good prediction of the experimental data on the dynamic shear process of rock discontinuities.
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
(2021)
Article
Chemistry, Multidisciplinary
Jun-Xiang Xiang, Ze Liu
Summary: Understanding and controlling the flow of materials in confined channels is important in science and engineering. The no-slip boundary condition makes it more challenging to drive flow at the nanoscale, especially for highly viscous liquids. This study reports the observation of a large boundary slip in the nanoscale flow of highly viscous supercooled liquid metals, enabled by hydrophobic treatment of smooth nanochannels. The slip length depends on the pressure, which can be explained by shear-dependent viscosity.
Article
Engineering, Mechanical
Xiangbo Zhang, Shuiting Ding, Farong Du, Fenzhu Ji, Zheng Xu, Jiang Liu, Qi Zhang, Yu Zhou
Summary: This study investigates the gas lubrication performance of porous gas bearings (PGBs) under high Knudsen number conditions, with experimental verification of the derived theory and discussions on the effects of various parameters on pressure distribution and flow. Results show that an increase in speed and inlet pressure enhances the load capacity of PGBs, while an increase in permeability decreases load capacity.
Article
Engineering, Multidisciplinary
Abiodun O. Ajibade, Tafida M. Kabir
Summary: This article investigates the effect of viscous dissipation on steady natural convection Couette flow under convective boundary condition. The solutions of the energy and momentum equations were obtained using the homotopy perturbation method. The impacts of the controlling parameters were analyzed graphically. It was found that increasing viscous dissipation leads to higher fluid temperature and lower fluid velocity. Heat generation decreases the rate of heat transfer on the heated plate and increases it on the cold plate. Additionally, an increase in Biot number results in an increase in the velocity boundary layer thickness.
INTERNATIONAL JOURNAL OF NONLINEAR SCIENCES AND NUMERICAL SIMULATION
(2023)
Article
Geochemistry & Geophysics
Santiago Andres Triana, Antony Trinh, Jeremy Rekier, Ping Zhu, Veronique Dehant
Summary: The cause of the damping of the Earth's free core nutation and the free inner core nutation eigenmodes has been a debated issue. A 3D numerical model was developed to accurately describe viscous and Ohmic dissipation processes in the Earth's fluid core, showing that most energy is lost at the core-mantle interface. This study validates previous assumptions about energy dissipation.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2021)
Article
Geology
Patrick A. Meere, Kieran F. Mulchrone, Dave J. McCarthy, Martin J. Timmerman, John F. Dewey
Article
Geochemistry & Geophysics
Daniel Pastor-Galan, Kieran F. Mulchrone, Mathijs R. Koymans, Douwe J. J. van Hinsbergen, Cor G. Langereis
Article
Geosciences, Multidisciplinary
Brenton J. Fairey, Aidan Kerrison, Patrick A. Meere, Kieran F. Mulchrone, Mandy Hofmann, Andreas Gaertner, Benita-Lisette Sonntag, Ulf Linnemann, Klaudia F. Kuiper, Meg Ennis, Chris Mark, Nathan Cogne, David Chew
JOURNAL OF THE GEOLOGICAL SOCIETY
(2018)
Article
Geology
Mohit Tunwal, Kieran F. Mulchrone, Patrick A. Meere
Correction
Geosciences, Multidisciplinary
Brenton J. Fairey, Aidan Kerrison, Patrick A. Meere, Kieran F. Mulchrone, Mandy Hofmann, Andreas Gaertner, Benita-Lisette Sonntag, Ulf Linnemann, Klaudia F. Kuiper, Meg Ennis, Chris Mark, Nathan Cogne, David Chew
JOURNAL OF THE GEOLOGICAL SOCIETY
(2018)
Article
Computer Science, Interdisciplinary Applications
Mohit Tunwal, Kieran F. Mulchrone, Patrick A. Meere
COMPUTERS & GEOSCIENCES
(2020)
Article
Geosciences, Multidisciplinary
Kieran F. Mulchrone, Soumyajit Mukherjee
JOURNAL OF STRUCTURAL GEOLOGY
(2020)
Article
Engineering, Chemical
Mohit Tunwal, Kieran F. Mulchrone, Patrick A. Meere
Article
Nanoscience & Nanotechnology
Michael P. Mortell, Kieran F. Mulchrone
Summary: This study investigates the use of the Whitham equation as an alternative to the Korteweg-de Vries (KdV) equation, focusing on the impact of adjusting the parameter nu on solutions and shocks, and how well they represent KdV solutions and solutions of the underlying hyperbolic system through numerical examples.
Article
Mathematics, Applied
Markus Galler, Kathy Luedge, Rory Humphries, Kieran Mulchrone, Philipp Hoevel
Summary: BVD is a complex disease in cattle with transmission primarily from asymptomatic persistently infected hosts, making control challenging. Research suggests that identification and removal of persistently infected animals is an effective control strategy, especially when transmission rate of transiently infected animals is low.
Article
Computer Science, Theory & Methods
Rory Humphries, Kieran Mulchrone, Jamie Tratalos, Simon J. More, Philipp Hovel
Summary: This study introduces a modelling framework for epidemic spreading on temporal networks, from which both individual-based and pair-based models can be derived. The proposed pair-based model is an improvement over existing edge-centric descriptions, offering a concise and simple alternative. By shifting the focus from individual-based to pair-based quantities, exact modelling of Markovian epidemic processes on temporal tree networks is possible.
APPLIED NETWORK SCIENCE
(2021)
Article
Mathematical & Computational Biology
Rory Humphries, Mary Spillane, Kieran Mulchrone, Sebastian Wieczorek, Micheal O'Riordain, Philipp Hovel
Summary: This study presents a network modelling approach to simulate the spread of SARS-CoV-2 in Ireland. By considering various scenarios and dynamic interventions, the research found that dynamic interventions can limit the impact of future outbreaks, but such a strategy may take several years until herd immunity is reached.
INFECTIOUS DISEASE MODELLING
(2021)
Article
Geosciences, Multidisciplinary
Mohit Tunwal, Kieran F. Mulchrone, Patrick A. Meere
Article
Geosciences, Multidisciplinary
Kieran F. Mulchrone, Soumyajit Mukherjee
JOURNAL OF EARTH SYSTEM SCIENCE
(2019)
