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Open Access research which pushes advances in bionanotechnology

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SIPBS is a major research centre in Scotland focusing on 'new medicines', 'better medicines' and 'better use of medicines'. This includes the exploration of nanoparticles and nanomedicines within the wider research agenda of bionanotechnology, in which the tools of nanotechnology are applied to solve biological problems. At SIPBS multidisciplinary approaches are also pursued to improve bioscience understanding of novel therapeutic targets with the aim of developing therapeutic interventions and the investigation, development and manufacture of drug substances and products.

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Diffuse reflection boundary condition for high-order lattice Boltzmann models with streaming-collision mechanism

Meng, Jian-Ping and Zhang, Yonghao (2014) Diffuse reflection boundary condition for high-order lattice Boltzmann models with streaming-collision mechanism. Journal of Computational Physics, 258. pp. 601-612. ISSN 0021-9991

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Abstract

For lattice Boltzmann (LB) models, their particle feature is ensured by the streaming–collision mechanism. However, this mechanism is often discarded for high-order LB models due to multi-speed lattices. Here, we propose a new way of implementing the diffuse reflection boundary condition that can maintain the characteristic streaming–collision mechanism for high-order models. It is then tested on four lattice models, namely D2Q16, D2Q17, D2Q37 and D3Q121 for isothermal and thermal Couette flows and lid-driven cavity flows. Our implementation is shown to be able to achieve second-order accuracy globally.