Novel Computer-Controlled Saturation of Dynamic Centrifuge Models Using High Viscosity Fluids

    Volume 32, Issue 6 (November 2009)

    ISSN: 0149-6115

    CODEN: GTJOAD

    Published Online: 22 September 2009

    Page Count: 6


    Stringer, M. E.
    Dept. of Engineering, Univ. of Cambridge, Cambridge,

    Madabhushi, S. P. G.
    Dept. of Engineering, Univ. of Cambridge, Cambridge,

    (Received 26 March 2009; accepted 20 August 2009)

    Abstract

    The practice of saturating centrifuge models with a highly viscous pore fluid is widely used. As the fluid saturates the model, care must be taken to ensure that the hydraulic gradients are not too high to cause excessive disturbance to the model. A new computer-controlled saturation system (CAM-Sat) has been developed and implemented at the University of Cambridge to aid the saturation of soil models with a high viscosity pore fluid. Models are saturated under vacuum and pore fluid enters through ports in the model’s base. The system controls the ingress of pore fluid into the model by monitoring the fluid mass flux and then altering the pressure drop between a reservoir of pore fluid and the model. The system was found to be stable across a wide range of fluid viscosities and sand types. A further test showed that the system was able to respond to changes in mass flux demanded by the researcher.


    Paper ID: GTJ102435

    DOI: 10.1520/GTJ102435

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    Author
    Title Novel Computer-Controlled Saturation of Dynamic Centrifuge Models Using High Viscosity Fluids
    Symposium , 0000-00-00
    Committee D18