Simulation of non‑dilute fibre suspensions using RBF‑based macro–micro multiscale method
Article
Article Title | Simulation of non‑dilute fibre suspensions using RBF‑based macro–micro multiscale method |
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ERA Journal ID | 4959 |
Article Category | Article |
Authors | Nguyen, Hung Quoc (Author) and Tran, Canh‑Dung (Author) |
Journal Title | Korea-Australia Rheology Journal |
Journal Citation | 34 (1), pp. 1-15 |
Number of Pages | 15 |
Year | 2022 |
Place of Publication | Korea |
ISSN | 1226-119X |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s13367-022-00022-1 |
Web Address (URL) | https://link.springer.com/article/10.1007/s13367-022-00022-1 |
Abstract | The multiscale stochastic simulation method based on the marriage of the Brownian Configuration Field (BCF) and the Radial Basis Function mesh-free approximation for dilute fibre suspensions by our group, is further developed to simulate non-dilute fibre suspensions. For the present approach, the macro and micro processes proceeded at each time step are linked to each other by a fibre contributed stress formula associated with the used kinetic model. Due to the feature of non-dilute fibre suspensions, the interaction between fibres is introduced into the evolution equation to determine fibre configurations using the BCF method. The fibre stresses are then determined based on the fibre configuration fields using the Phan–Thien–Graham model. The efficiency of the simulation method is demonstrated by the analysis of the two challenging problems, the axisymmetric contraction and expansion flows, for a range of the fibre concentration from semi-dilute to concentrated regimes. Results evidenced by numerical experiments show that the present method would be potential in analysing and simulating various suspensions in food and medical industries. |
Keywords | 1D-Integrated Radial Basis Function-based approximation; Brownian configuration field; Multiscale macro–micro stochastic simulation; Non-dilute fibre suspension; Radial basis function |
ANZSRC Field of Research 2020 | 401706. Numerical modelling and mechanical characterisation |
490399. Numerical and computational mathematics not elsewhere classified | |
Byline Affiliations | School of Engineering |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q71yw/simulation-of-non-dilute-fibre-suspensions-using-rbf-based-macro-micro-multiscale-method
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