Onset of turbulence in a regular porous medium : An experimental study

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General shallow water equations (GSWEs)

Acknowledgments The author would like to thank Vladimir Nikora and Mohamed Ghidaoui for the invitation to write this Vision Paper. Rui Ferreira and Francesco Ballio have provided thorough reviews of the initial draft. Their time and effort, thoughtful comments, and helpful suggestions are gratefully acknowledged. The application of the double-averaging methodology to open channel flows had been developed and discussed with an informal group of researchers, who held eight workshops in the period between 2002 and 2010. The author would like to thank Vladimir Nikora for the leadership of this group and all group members for many enjoyable, challenging and productive discussions. Funding The author is grateful to the UK's Engineering and Physical Sciences Research Council (EPSRC, grants GR/R51865/01, EP/E0113301, and EP/K013513/1) and School of Engineering at the University of Aberdeen for the funding support towards this work.Peer reviewedPublisher PD

Numerical study of the effects of contact angle and viscosity ratio on the dynamics of snap-off through porous media

Acknowledgements This work was jointly sponsored by EPSRC (EP/I010971/1) and NSFC China. The authors would like to acknowledge the support of the Maxwell compute cluster funded by the University of Aberdeen.Peer reviewedPostprin

Components of the spatially-averaged turbulent stress in open channel flows over rough beds

River hydrodynamicsTurbulent open channel flow and transport phenomen

Spatially averaged flows over mobile rough beds : definitions, averaging theorems, and conservation equations

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Impact of grain roughness on residual nonwetting phase cluster size distribution in packed columns of uniform spheres

This material contains work supported by an Aberdeen Formation Evaluation Society student bursary and a Society of Petrophysicists and Well Log Analysts Foundation grant. A.I. was supported by the University of Aberdeen School of Engineering Elphinstone Ph.D. studentship. Pore-scale imaging was performed in the Oil & Gas Academy of Scotland x-ray microcomputed tomography facility at University of Aberdeen. The authors thank the two anonymous reviewers for their comments.Peer reviewedPublisher PD

Cleat structure analysis and permeability simulation of coal samples based on micro-computed tomography (micro-CT) and scan electron microscopy (SEM) technology

This paper utilised opportunistic coal samples and characterisation data as a part of a study into multiphase flow in coal for Southern Qinshui coal basin. The University of Aberdeen School of Engineering and School of Geosciences are thanked for their support. The authors also thank John Still from The University of Aberdeen School of Geosciences for his support regarding SEM data analysis and Amir Golparvar from The University of Aberdeen School of Engineering for his help with Matlab.Peer reviewedPostprin

Permeability upscaling using cubic law based on the analysis of multi-resolution micro-CT images of intermediate rank coal

Acknowledgements This paper used opportunistic coal samples and characterization data as a part of a study into multiphase flow in coal for the Southern Qinshui coal basin. The measurement of this work was supported by the Royal Society through the National Natural Science Foundation of China (NSFC) Cost Share Project, and Alexandra Roslin thanks the Ministry of Education of Russia to support her Ph.D. work at the University of Aberdeen. The University of Aberdeen School of Engineering and School of Geosciences are thanked for their support. The authors also thank John Still from the University of Aberdeen School of Geosciences for his support regarding SEM data analysis.Peer reviewedPostprin

Automated extraction of in situ contact angles from micro-computed tomography images of porous media

This material contains work supported by an Aberdeen Formation Evaluation Society student bursary, a Society of Petrophysicist and Well-Log Analysts Foundation grant, and a Messel travel bursary from the Society of Chemical Industry. AI was supported by the University of Aberdeen School of Engineering Elphinstone Ph.D. studentship . The authors gratefully acknowledge Alhammadi et al. (2017) for helpful suggestions on the segmentation and Kamaljit Singh for providing unpublished in situ contact angle measurements (Fig. 11a) for oil ganglion SSa. The authors thank the two anonymous reviewers for their comments.Peer reviewedPostprin

A low-cost, non-hazardous protocol for surface texturing of glass particles

Acknowledgements This material contains work supported by an Aberdeen Formation Evaluation Society student bursary and a Society of Petrophysicists and Well Log Analysts Foundation grant. AI was supported by a University of Aberdeen School of Engineering Elphinstone Ph.D. studentship. Electron microscopy was performed in the ACEMAC Facility at University of Aberdeen; the authors thank John Still for the acquisition of the SEM images. The authors gratefully acknowledge Alfred R. Akisanya and Mark Gourlay for helpful suggestions on the texturing protocol. The authors thank the anonymous reviewer for his/her comments. All data used in this study are available from the corresponding author on reasonable request.Peer reviewedPublisher PD