Direct numerical simulation of heat transport in dispersed gas-liquid two-phase flow using a front tracking approach

N.G. Deen, M. van Sint Annaland, J.A.M. Kuipers

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    12 Downloads (Pure)

    Abstract

    In this paper a simulation model is presented for the Direct Numerical Simulation (DNS) of heat transport in dispersed gas-liquid two-phase flow using the Front Tracking (FT) approach. Our model extends the FT model developed by van Sint Annaland et al. (2006) to non-isothermal conditions. In FT an unstructured dynamic mesh is used to represent and track the interface explicitly by a number of interconnected marker points. The Lagrangian representation of the interface avoids the necessity to reconstruct the interface from the local distribution of the fractions of the phases and, moreover, allows a direct and accurate calculation of the surface tension force circumventing the (problematic) computation of the interface curvature. The extended model is applied to predict the heat exchange rate between the liquid and a hot wall kept at a fixed temperature. It is found that the wall-to-liquid heat transfer coefficient exhibits a maximum in the vicinity of the bubble that can be attributed to the locally decreased thickness of the thermal boundary layer.
    Original languageUndefined
    Title of host publicationConference Proceedings of CFD-2006
    Place of PublicationMelbourne
    Pages-
    Number of pages7
    Publication statusPublished - 13 Dec 2007
    EventFifth International Conference on CFD in the Process Industries - Melbourne, Australia
    Duration: 13 Dec 200615 Dec 2006

    Conference

    ConferenceFifth International Conference on CFD in the Process Industries
    Period13/12/0615/12/06
    Other13-15 December 2006

    Keywords

    • IR-69260
    • METIS-236208

    Cite this