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  • JOURNAL ARTICLE
    Percival JR, Pavlidis D, Xie Z, Gomes JLM, Sakai M, Shigeto Y, Takahashi H, Matar OK, Pain CCet al., 2014,

    Control volume finite element modelling of segregation of sand and granular flows in fluidized beds

    , INTERNATIONAL JOURNAL OF MULTIPHASE FLOW, Vol: 67, Pages: 191-199, ISSN: 0301-9322
  • JOURNAL ARTICLE
    Saenz PJ, Valluri P, Sefiane K, Karapetsas G, Matar OKet al., 2014,

    On phase change in Marangoni-driven flows and its effects on the hydrothermal-wave instabilities

    , PHYSICS OF FLUIDS, Vol: 26, ISSN: 1070-6631
  • JOURNAL ARTICLE
    Wray AW, Papageorgiou DT, Craster RV, Sefiane K, Matar OKet al., 2014,

    Electrostatic Suppression of the "Coffee Stain Effect"

    , LANGMUIR, Vol: 30, Pages: 5849-5858, ISSN: 0743-7463
  • JOURNAL ARTICLE
    Xie Z, Pavlidis D, Percival JR, Gomes JLMA, Pain CC, Matar OKet al., 2014,

    Adaptive unstructured mesh modelling of multiphase flows

    , International Journal of Multiphase Flow, Vol: 67, Pages: 104-110, ISSN: 0301-9322

    © 2013 Elsevier Ltd. Multiphase flows are often found in industrial and practical engineering applications, including bubbles, droplets, liquid film and waves. An adaptive unstructured mesh modelling framework is employed here to study interfacial flow problems, which can modify and adapt anisotropic unstructured meshes to better represent the underlying physics of multiphase problems and reduce computational effort without sacrificing accuracy. The numerical framework consists of a mixed control volume and finite element formulation, a 'volume of fluid'-type method for the interface capturing based on a compressive control volume advection method and second-order finite element methods. The framework also features a force-balanced algorithm for the surface tension implementation, minimising the spurious velocities often found in such flows. Numerical examples of the Rayleigh-Taylor instability and a rising bubble are presented to show the ability of this adaptive unstructured mesh modelling framework to capture complex interface geometries and also to increase the efficiency in multiphase flow simulations.

  • JOURNAL ARTICLE
    Xie Z, Pavlidis D, Percival JR, Gomes JLMA, Pain CC, Matar OKet al., 2014,

    Adaptive unstructured mesh modelling of multiphase flows

    , International Journal of Multiphase Flow, ISSN: 0301-9322

    Multiphase flows are often found in industrial and practical engineering applications, including bubbles, droplets, liquid film and waves. An adaptive unstructured mesh modelling framework is employed here to study interfacial flow problems, which can modify and adapt anisotropic unstructured meshes to better represent the underlying physics of multiphase problems and reduce computational effort without sacrificing accuracy. The numerical framework consists of a mixed control volume and finite element formulation, a 'volume of fluid'-type method for the interface capturing based on a compressive control volume advection method and second-order finite element methods. The framework also features a force-balanced algorithm for the surface tension implementation, minimising the spurious velocities often found in such flows. Numerical examples of the Rayleigh-Taylor instability and a rising bubble are presented to show the ability of this adaptive unstructured mesh modelling framework to capture complex interface geometries and also to increase the efficiency in multiphase flow simulations.

  • JOURNAL ARTICLE
    Xie Z, Pavlidis D, Percival JR, Gomes JLMA, Pain CC, Matar OKet al., 2014,

    Adaptive unstructured mesh modelling of multiphase flows

    , International Journal of Multiphase Flow, Vol: 67, Pages: 104-110, ISSN: 0301-9322

    © 2013 Elsevier Ltd. Multiphase flows are often found in industrial and practical engineering applications, including bubbles, droplets, liquid film and waves. An adaptive unstructured mesh modelling framework is employed here to study interfacial flow problems, which can modify and adapt anisotropic unstructured meshes to better represent the underlying physics of multiphase problems and reduce computational effort without sacrificing accuracy. The numerical framework consists of a mixed control volume and finite element formulation, a 'volume of fluid'-type method for the interface capturing based on a compressive control volume advection method and second-order finite element methods. The framework also features a force-balanced algorithm for the surface tension implementation, minimising the spurious velocities often found in such flows. Numerical examples of the Rayleigh-Taylor instability and a rising bubble are presented to show the ability of this adaptive unstructured mesh modelling framework to capture complex interface geometries and also to increase the efficiency in multiphase flow simulations.

  • JOURNAL ARTICLE
    Zadrazil I, Matar OK, Markides CN, 2014,

    An experimental characterization of downwards gas-liquid annular flow by laser-induced fluorescence: Flow regimes and film statistics

    , INTERNATIONAL JOURNAL OF MULTIPHASE FLOW, Vol: 60, Pages: 87-102, ISSN: 0301-9322
  • JOURNAL ARTICLE
    Karapetsas G, Sahu KC, Matar OK, 2013,

    Effect of Contact Line Dynamics on the Thermocapillary Motion of a Droplet on an Inclined Plate

    , LANGMUIR, Vol: 29, Pages: 8892-8906, ISSN: 0743-7463
  • JOURNAL ARTICLE
    Purvis JA, Mistry RD, Markides CN, Matar OKet al., 2013,

    An experimental investigation of fingering instabilities and growth dynamics in inclined counter-current gas-liquid channel flow

    , PHYSICS OF FLUIDS, Vol: 25, ISSN: 1070-6631
  • REPORT
    Smith E, Trevelyan D, Zaki T, 2013,

    Scalable coupling of Molecular Dynamics (MD) and Direct Numerical Simulation (DNS) of Multi-scale Flows — Part 2

    The objective of this project was the development and performance optimisation of a couplingapplication. The coupler library is intended for interfacing massively-parallel algorithmsfor multi-physics simulations. The development of the coupler library adopted the same philosophyof the Message Passing Interface (MPI) library: The coupler was engineered as a setof libraries that are accessible from various applications, in order to interface their operation.However, the applications maintain independent data and scope, and only exchange informationvia calls to the coupler library. The development, validation, verification and optimisation ofthe coupling library were performed in the context of interfacing two massively parallel algorithms:a continuum Navier-Stokes solver (T ransFlow) and a molecular dynamics algorithm(StreamMD). However, the development of the coupling library has maintained generality inorder to facilitate coupling other application softwares in the future.

This data is extracted from the Web of Science and reproduced under a licence from Thomson Reuters. You may not copy or re-distribute this data in whole or in part without the written consent of the Science business of Thomson Reuters.

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