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  • An experimental study of co-flow ammonia-water desorption in an oil-heated, microscale, fractal-like branching heat exchanger

    Creator:
    Mouchka, Gregory A.
    Abstract:
    An experimental study was performed in which an ammonia-water solution was desorbed within a branching fractal-like microchannel array. The solution entered in the center of a disk, and flowed out radially until discharging in to a gravity-driven separation chamber. Heat was added to the ammonia-water through a thin wall, above...
    Resource Type:
    Masters Thesis
    Full Text:
    student. Thank you to Drs. James Liburdy, Vinod Narayanan, and Ralph Showalter for serving on my

  • Upscaling non-Darcy flow using mixed finite element method

    Creator:
    Garibotti, Cristiano Rodrigues
    Abstract:
    In this paper we develop an upscaling technique for non-Darcy flow in porous media. Non-Darcy model of flow applies to flow in porous media when large velocities occur. The well-posedness results for theory of quasilinear elliptic partial differential equations. To discretize the model we used lowest order Raviart-Thomas mixed finite...
    Resource Type:
    Masters Thesis
    Full Text:
    better describe the flow for larger Reynolds number (Re), for example, when the velocities are large

  • A local perturbation problem of the 3D Navier-Stokes equations

    Creator:
    Zeng, Jhih-Jyun
    Abstract:
    This dissertation explores mathematical theory of the 3 dimensional incompressible Navier-Stokes equations that consists a set of partial differential equations which govern the motion of Newtonian fluids and can be seen as Newton's second law of motion for fluids. The main interest of this work focuses on how local perturbation...
    Resource Type:
    Dissertation
    Full Text:
    . I would like to thank my committee members Dr. Ralph Showalter, Dr. Elaine Cozzi, and Dr. Thomann

  • Hydrodynamic contact/impact modeling and application to ocean engineering problems

    Creator:
    Challa, Ravi
    Abstract:
    Fluid-structure interaction (FSI) is a very interesting and challenging multi-disciplinary field involving interaction of a movable or deformable structure with an internal or surrounding fluid flow. FSI has several practical engineering applications such as the determination of the hydrodynamic forces on a structure or the dynamics of motion of bodies...
    Resource Type:
    Dissertation
    Full Text:
    thank Dr. Ralph Showalter for agreeing to be a part of my graduate committee. The author