Characterisation, Modification and Mathematical Modelling of Sudsing
Lead Research Organisation:
Aberystwyth University
Department Name: Inst of Mathematical and Physical Sci
Abstract
An integrated research programme is described treating thecharacterisation, modification and mathematical modelling of sudsing:the research will elucidate the fundamental science underpinninglaundry detergent products. The foamability of a primary surfactantin admixture with co-surfactants, polymers and fatty soildrops/particles will be measured, and correlated with interfacialtransport properties of foam films. Formulations which foam well willbe targeted. Optical, drainage and rheological properties of the bulkfoams formed during sudsing will be measured and characterised.Bubble scale modelling will be used to describe bubble shapes andstability. Finally continuum level mathematical models of sudsing,described in terms of average foam properties (foam volume, averagebubble size, average liquid content), will be developed incorporatingthe key research findings.
Publications
Cox S
(2009)
The viscous froth model: steady states and the high-velocity limit
in Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
Cox S
(2013)
Instability of stretched and twisted soap films in a cylinder
in Journal of Engineering Mathematics
Jones S
(2011)
Two-dimensional constriction flows of foams
in Colloids and Surfaces A: Physicochemical and Engineering Aspects
Jones S
(2012)
On the effectiveness of a quasistatic bubble-scale simulation in predicting the constriction flow of a two-dimensional foam
in Journal of Rheology
Jones SA
(2011)
The transition from three-dimensional to two-dimensional foam structures.
in The European physical journal. E, Soft matter
Ran L
(2011)
Characterisation, modification and mathematical modelling of sudsing
in Colloids and Surfaces A: Physicochemical and Engineering Aspects
| Description | * the presence of calcium mixed into a surfactant solution leads to the production of mesophases, that hinder surfactant transport and suppress foaming, * the presence of sebum soil mixed into surfactant solution also greatly hinders foaming (the effects of sebum can be reproduced by a simple particle-oil mixture) * in many cases, quasistatic simulations reproduce stress fields in flowing foam experiments, * for faster foam flows however, it is necessary to consider the effects of surfactant accumulation on foam flow, * a capillary-suction based model for film failure rates in foam predicts the experimental evolution of the bubble-size distribution. |
| Exploitation Route | This was a collaboration with a partner in industry. The industrial partner is well placed to use the project outcomes. |
| Sectors | Agriculture, Food and Drink,Chemicals |
| Description | British Council |
| Amount | £3,400 (GBP) |
| Funding ID | SC/BD |
| Organisation | British Council |
| Sector | Charity/Non Profit |
| Country | United Kingdom |
| Start | |
| Description | British Council |
| Amount | £3,400 (GBP) |
| Funding ID | SC/BD |
| Organisation | British Council |
| Sector | Charity/Non Profit |
| Country | United Kingdom |
| Start | |