Yuan, Q, Jia, X and Williams, RA (2012) Validation of a multi-component digital dissolution model for irregular particles. Powder Technology, 240. 25 - 30. ISSN 0032-5910
Abstract
A new mesoscale simulation model for solids dissolution based on an computationally efficient and versatile digital modelling approach (DigiDiss) is considered and validated against analytical solutions and published experimental data for simple geometries. As the digital model is specifically designed to handle irregular shapes and complex multi-component structures, use of the model is explored for single crystals (sugars) and clusters. Single crystals and the cluster were first scanned using X-ray microtomography to obtain a digital version of their structures. The digitised particles and clusters were used as a structural input to digital simulation. The same particles were then dissolved in water and the dissolution process was recorded by a video camera and analysed yielding: the overall dissolution times and images of particle size and shape during the dissolution. The results demonstrate the coherence of simulation method to reproduce experimental behaviour, based on known chemical and diffusion properties of constituent phase. The paper discusses how further sophistications to the modelling approach will need to include other important effects such as complex disintegration effects (particle ejection, uncertainties in chemical properties). The nature of the digital modelling approach is well suited to for future implementation with high speed computation using hybrid conventional (CPU) and graphical processor (GPU) systems.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2012, Elsevier. NOTICE: this is the author’s version of a work that was accepted for publication in Powder Technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Powder Technology, 240, 2012. http://dx.doi.org/10.1016/j.powtec.2012.07.011 |
Keywords: | CPU–GPU computation; dissolution; lattice boltzmann method; simulation; x-ray microtomography |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) > Institute for Particle Science and Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 03 Apr 2014 17:05 |
Last Modified: | 23 Jun 2023 21:38 |
Published Version: | http://dx.doi.org/10.1016/j.powtec.2012.07.011 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.powtec.2012.07.011 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:78352 |