Strathprints Home | Open Access | Browse | Search | User area | Copyright | Help | Library Home | SUPrimo

The drag force in two-fluid models of gas-solid flows

Zhang, Y.H. and Reese, J.M. (2003) The drag force in two-fluid models of gas-solid flows. Chemical Engineering Science, 58 (8). pp. 1641-1644. ISSN 0009-2509

[img]
Preview
PDF (strathprints006100.pdf)
Download (157Kb) | Preview

    Abstract

    Currently, the two most widespread methods for modelling the particulate phase in numerical simulations of gas-solid flows are discrete particle simulation (see, e.g., Mikami, Kamiya, & Horio, 1998), and the two-fluid approach, e.g., kinetic theory models (see, e.g., Louge, Mastorakos, & Jenkins, 1991). In both approaches the gas phase is described by a locally averaged Navier-Stokes equation and the two phases are usually coupled by a drag force. Due to the large density difference between the particles and the gas, inter-phase forces other than the drag force are usually neglected, so it plays a significant role in characterising the gas-solid flow. Yasuna, Moyer, Elliott, and Sinclair (1995) have shown that the solution of their model is sensitive to the drag coefficient. In general, the performance of most current models depends critically on the accuracy of the drag force formulation.

    Item type: Article
    ID code: 6100
    Keywords: numerical simulation, kinetic theory, particle, beds, pipe, Mechanical engineering and machinery, Chemical engineering
    Subjects: Technology > Mechanical engineering and machinery
    Technology > Chemical engineering
    Department: Faculty of Engineering > Mechanical and Aerospace Engineering
    Related URLs:
      Depositing user: Strathprints Administrator
      Date Deposited: 20 May 2008
      Last modified: 29 May 2012 18:49
      URI: http://strathprints.strath.ac.uk/id/eprint/6100

      Actions (login required)

      View Item

      Fulltext Downloads: