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Filtering by: Subject Ablative materials -- Mathematical models Remove constraint Subject: Ablative materials -- Mathematical models Decade 2000-2009 Remove constraint Decade: 2000-2009

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  • A study of solidification dynamics with liquid mass influx

    Creator:
    Thirunavukarasu, Balamurugesh
    Abstract:
    A computational model is developed to study the effects of alumina layer formation on an ablative surface when exposed to high temperature particle laden gas flow. The solidification dynamics i.e., the solid and liquid alumina layer growth rate, and the heat transferred to the ablative surface are investigated. A one-dimensional...
    Resource Type:
    Masters Thesis
    Full Text:
    of ablative materials. The model assumes that the particles impact the ablative material and reflect

  • Exchange interaction studies in magnetic semiconductors by neutron scattering

    Creator:
    Wiren, Zachary Quincy
    Abstract:
    Theories predict that making a dilute magnetic semiconductor strongly p -type would allow it to remain ferromagnetic at room temperature. This is of intrest as a ferromagnetic semiconductor would allow for a great many applications in the field of spintronics. Neutron scattering experiments were undertaken to better understand the antiferromagnetic...
    Resource Type:
    Dissertation
    Full Text:
    the material large enough to be easily detected. Other commercial applications of spintronic devices

  • Automated feature extraction for orientation and slicing in microlamination

    Creator:
    Ariastuti, Retna
    Abstract:
    The research is about developing a computerized design system for microtechnology-based energy, and chemical systems (MECS). MECS devices are a part of microfabrication, which primarily focuses on taking advantage of the extremely high rates of heat and mass transfer available in microstructures. It typically consists of intricate arrays of components...
    Resource Type:
    Dissertation
    Full Text:
    of metal, ceramic, or polymeric material. In terms of size, MECS devices are in-between micro-scale

  • Thermodynamic correction for salts in variably saturated porous media

    Creator:
    Burns, Erick R.
    Abstract:
    Using thermodynamic principles, the general relationship describing the equilibrium vapor content in the gas phase above a saline liquid and across a curved liquid-gas interface is developed. Since high salt concentration also affects the intensive and extensive liquid properties, it is also necessary to account for these effects in liquid...
    Resource Type:
    Masters Thesis
    Full Text:
    years, and his conceptual model of flow of salts in unsaturated porous media formed the foundation upon

  • Thermodynamics of non-dilute saline solutions in variably saturated porous media

    Creator:
    Burns, Erick R.
    Abstract:
    Non-dilute salt strength solutions occur in many near surface geologic environments. In order to better understand the occurrence and movement of the water and salt, mathematical models for this non-ideal fluid need to be developed. Initial boundary value problems may then be solved to predict behavior for comparison with observations....
    Resource Type:
    Dissertation
    Full Text:
    better understand the occurrence and movement of the water and salt, mathematical models for this non

  • 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:
    this paper we develop an upscaling technique for non-Darcy flow in porous media. Non-Darcy model of