EFCE Excellence Award in Mechanics of Particulate Solids

Award winners

 

Excellence Award winner 2019

 

Dr. Matthew Arran

His excellent paper "Intermittency between avalanche regimes on grain piles", published in conjunction with your PhD studies on "Avalanching on dunes and its effects: Size statistics, stratification, & seismic surveys", achieved the best evaluation results in terms of breadth and depth of the research undertaken, scientific impact, innovation and quality of publication.

Matthew Arran obtained his MMath and PhD degrees in Applied Mathematics from St. Catharine's College, University of Cambridge, United Kingdom. Currently, he hold a Postdoctoral Research Position at the Institut de Physique du Globe de Paris, France. The research topic is: Experimental and computational study of the acoustic waves produced by granular flows.

The award was presented on 10 April 2019 at the International Congress on Particle Technology - PARTEC 2019 - in Nuremberg, Germany.

Arran

Intermittency between avalanche regimes on grain piles
M. I. Arran and N. M. Vriend

Abstract: We experimentally investigate discrete avalanches of grains, driven by a low inflow rate, on an erodible pile in a channel. We observe intermittency between one regime, in which avalanches are quasiperiodic and system spanning, and another, in which they pass at irregular intervals and have a power-lawsize distribution. Observations are robust to changes of inflow rate and grain type and require no tuning of external parameters. We demonstrate that the state of the pile’s surface determines whether avalanche fronts propagate to the end of the channel or stop partway down, and we introduce a toy model for the latter case that reproduces the observed power-law size distribution.We suggest direct applications to avalanches of pharmaceutical and geophysical grains, and the possibility of reconciling the "self-organized criticality" predicted by several authors with the hysteretic behavior described by others.
DOI: 10.1103/PhysRevE.97.060901

Award-presentation-Arran-Partec2019

 
Excellence Award winner 2016

 

Mr. Christopher Ness, M.Eng.

His series of excellent papers, published in conjunction with his PhD studies on "Suspension rheology and extrusion studied by discrete element simulations",  achieved the best evaluation results in terms of innovativeness, breadth and depth of the study, quality of publications, and the transfer of know-how to industrial applications.

Christopher Ness obtained his Bachelor of Arts’ and Master of Engineering degrees from the University of Cambridge. He currently holds a doctoral position at the University of Edinburgh.

The award was presented on 20 April 2016 during the plenary session of the International Congress on Particle Technology - PARTEC 2016 - in Nuremberg, Germany.

Ness
Presentation-Excellence Award-Ness2016

Prof. Álvaro Ramírez Gomez (left) presents the Excellence Award certificate  to Christopher Ness
on the occasion of PARTEC 2016


Excellence Award winner 2013

 

Dr. CARLOS GONZÁLEZ MONTELLAN0

His PhD thesis on
"Applications of the Discrete Element Method to the Study of Granular Materials Stored in Silos and Hoppers",
completed at the Universidad Politecnica de Madrid, Spain, under the supervision of Professor Francisco Ayuga achieved the best evaluation results in terms of innovativeness, breadth and depth of the study, quality of publications, and the transfer of know-how to industrial applications.

Carlos Gonzalez Montellano obtained his Bachelor's degree and PhD in Agricultural Engineering from the Universidad Politécnica de Madrid. He currently holds a position at the Department of Engineering, Westeel EMEA S.L, Madrid, and has further research activities in silos, numerical methods, finite element method, discrete element method, structural engineering and rural infrastructures.

The award was presented on 24 April 2013 during the plenary session of the International Congress on Particle Technology - PARTEC 2013 - in Nuremberg, Germany.

Gonzalez Montellano

Excellence Award winner 2010

 

Dr.-ING. Johannes HÄrtl

His PhD thesis on
 "A study of granular solids in silos with and without an insert",
completed at the University of Edinburgh, UK, in collaboration with POSTEC, Telemark University College, Norway, under the supervision of Professor Jin Y. Ooi, UK, and Professor Gisle G. Enstad, Norway, received the best evaluation results in terms of innovativeness, breadth and depth of the study, quality of publications, and the transfer of know-how to industrial applications.

Johannes Härtl received his Dipl.-Ing. degree in Civil Engineering from the Regensburg University of Applied Sciences, Germany, and his PhD from the University of Edinburgh, UK. Currently, he is working as a research engineer at BASF SE, Germany, on research projects concerning the treatment and storage of granular solids.

The award was presented during the banquet of the World Congress of Particle Technology (supported by PARTEC), held in Nuremberg, Germany, from 26 to 29 April 2010.

Härtl