Validation of the 2006 Yucca Mountain net infiltration model
Abstract not provided.
Publications
Model estimates of future net infiltration in the region surrounding the proposed Yucca Mountain nuclear waste repository
Abstract not provided.
Exergy sustainability
Exergy is the elixir of life. Exergy is that portion of energy available to do work. Elixir is defined as a substance held capable of prolonging life indefinitely, which implies sustainability of life. In terms of mathematics and engineering, exergy sustainability is defined as the continuous compensation of irreversible entropy production in an open system with an impedance and capacity-matched persistent exergy source. Irreversible and nonequilibrium thermodynamic concepts are combined with self-organizing systems theories as well as nonlinear control and stability analyses to explain this definition. In particular, this paper provides a missing link in the analysis of self-organizing systems: a tie between irreversible thermodynamics and Hamiltonian systems. As a result of this work, the concept of ''on the edge of chaos'' is formulated as a set of necessary and sufficient conditions for stability and performance of sustainable systems. This interplay between exergy rate and irreversible entropy production rate can be described as Yin and Yang control: the dialectic synthesis of opposing power flows. In addition, exergy is shown to be a fundamental driver and necessary input for sustainable systems, since exergy input in the form of power is a single point of failure for self-organizing, adaptable systems.
Modeling Thermal Desaturation of Fracture Porous Rocks
Water Resources Research
Abstract not provided.
Differencing Algorithms for Material Interfaces in Two-Phase Darcy Flow
Water Resources Research
Abstract not provided.
5 Results