Browsing by Author "WEAIRE, DENIS"
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Adaptation of the Zcone model to the estimation of the energy of a bcc foam
HUTZLER, STEFAN; WEAIRE, DENIS (2015) 
Applications and extensions of the Zcone model for the energy of a foam
WEAIRE, DENIS; HUTZLER, STEFAN (2015)We present an extended analysis of the Z cone model for the estimation of the energy of an ordered foam. In particular, we show that it results in an interaction potential with an expone ... 
Bubblebubble interactions in a 2D foam, close to the wet limit
HUTZLER, STEFAN; WEAIRE, DENIS (2017) 
The continuum theory of shear localization in twodimensional foam
HUTZLER, STEFAN; WEAIRE, DENIS (2010)We review some recent advances in the rheology of twodimensional liquid foams, which should have implications for threedimensional foams, as well as other mechanical systems that have a yield stress. We focus primarily ... 
Dense packings of spheres in cylinders: Simulations
CHAN, HOKEI; HUTZLER, STEFAN; WEAIRE, DENIS (2012)We study the optimal packing of hard spheres in an infinitely long cylinder, using simulated annealing, and compare our results with the analogous problem of packing disks on the unrolled surface of a cylinder. The densest ... 
An experimental realisation of the WeairePhelan structure in monodisperse liquid foam
HUTZLER, STEFAN; WEAIRE, DENIS (2012)The WeairePhelan (WP) structure is the lowest energy structure known of an ideal monodisperse foam in the dry limit. To date, it has not been realized in the laboratory. Instead Lord Kelvin's 1887 structure, which it ... 
Foam as a complex system
WEAIRE, DENIS; HUTZLER, STEFAN (2009)What is a `complex system?? The twodimensional foam, as originally popularized by Cyril Stanley Smith, provides an ideal context in which to explore this question. 
Instabilities in liquid foams
WEAIRE, DENIS (2007)Instabilities play a central role in the physics of foams. Some that change the topology of a dry foam are indicated by the laws promulgated by Plateau in his 1873 book. Their occurrence is less clearly predictable in ... 
The mechanics of liquid foams: history and new developments
WEAIRE, DENIS; HUTZLER, STEFAN (2011)The story of some recent developments in foam rheology is related at key points to the remarkable early contributions of Henry Princen, who pioneered the rigorous modern development of the subject. His general approach of ... 
Phyllotactic Description of Hard Sphere Packing in Cylindrical Channels
CHAN, HOKEI; WEAIRE, DENIS (2011)We develop a simple analytical theory that relates dense sphere packings in a cylinder to corresponding disk packings on its surface. It applies for ratios R=D/d (where d and D are the diameters of the hard spheres and the ... 
Phyllotaxis, disk packing, and Fibonacci numbers
WEAIRE, DENIS (2017) 
Rearrangement and elimination of ordered surface layers of crystalline bubble structures due to gas diffusion
HUTZLER, STEFAN; WEAIRE, DENIS (2009)We describe a hitherto unknown selforganising effect in wet crystalline bubble structures exposed to air. Due to the escape of gas from the bubbles in the top surface layer, bubbles shrink and create space for the bubbles ... 
The relative energy of fcc and hcp foams
HUTZLER, STEFAN; WEAIRE, DENIS (2015) 
Rheological properties of the soft disk model of 2D foams
HUTZLER, STEFAN; WEAIRE, DENIS (2008)The softdisk model previously developed and applied by Durian D. J. Durian, Phys. Rev. Lett. 75, 4780 1995 is brought to bear on problems of foam rheology of longstanding and current interest, using twodimensional systems. ... 
Simulation and observation of lineslip structures in columnar structures of soft spheres
HUTZLER, STEFAN; WEAIRE, DENIS (2017) 
Slow crystallisation of a monodisperse foam stabilised against coarsening
HUTZLER, STEFAN; WEAIRE, DENIS (2015) 
Statistics and topological changes in 2D foam from the dry to the wet limit
HUTZLER, STEFAN; WEAIRE, DENIS (2017) 
Structure and energy of liquid foams
WEAIRE, DENIS; HUTZLER, STEFAN; HUTZLER, STEFAN; WEAIRE, DENIS LAWRENCE (2015)We present an overview of recent advances in the understanding of foam structure and energy and their depen dence on liquid volume fraction. We consider liquid foams in equilibrium for which the relevant energy is ... 
The surface tells it all: relationship between volume and surface fraction of liquid dispersions
HUTZLER, STEFAN; WEAIRE, DENIS (2016) 
Theoretical analysis of the performance of a foam fractionation column
WEAIRE, DENIS; HUTZLER, STEFAN (2014)A model system for theory and experiment which is relevant to foam fractionation consists of a column of foam moving through an inverted Utube between two pools of surfactant solution. The foam drainage equation is used ...