Lane Yarrington

Impact of Sensor Detection Limits on Protecting Water Distribution Systems from Contamination Events

Sean Andrew McKenna, David B. Hart, Lane Yarrington

Real-time water quality sensors are becoming commonplace in water distribution systems. However, field deployable, contaminant-specific sensors are still in the development stage. As development proceeds, the necessary operating parameters of these sensors must be determined to protect consumers from accidental and malevolent …

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Impact of sensor detection limits on protecting water distribution systems from contamination events.

Sean Andrew McKenna, David B. Hart, Lane Yarrington

Real-time water quality sensors are becoming commonplace in water distribution systems. However, field deployable, contaminant-specific sensors are still in the development stage. As development proceeds, the necessary operating parameters of these sensors must be determined to protect consumers from accidental and malevolent …

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Impact of Sensor Performance on Protecting Water Distribution Systems from Contamination Events

Sean Andrew McKenna, Lane Yarrington

Real-time water quality and chemical-specific sensors are becoming more commonplace in water distribution systems. The overall objective of the sensor network is to protect consumers from accidental and malevolent contamination events occurring within the distribution network. This objective can be quantified several …

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Modeling Solute Transport in Distribution Networks with Variable Demand and Time Step Sizes

Sean Andrew McKenna, Chad Peyton, Lane Yarrington, Steven G. Buchberger et autres

The effect of variable demands at short time scales on the transport of a solute through a water distribution network has not previously been studied. We simulate flow and transport in a small water distribution network using EPANET to explore the effect …

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Mechanistic modeling of fingering, nonmonotonicity, fragmentation, and pulsation within gravity/buoyant destabilized two‐phase/unsaturated flow

Robert J. Glass, Lane Yarrington

Fingering, nonmonotonicity, fragmentation, and pulsation within gravity/buoyant destabilized two‐phase/unsaturated flow systems has been widely observed with examples in homogeneous to heterogeneous porous media, in single fractures to fracture networks, and for both wetting and nonwetting invasion. To model this phenomena, we consider …

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Fingering, Nonmonotonicity, Fragmentation, and Pulsation Within Gravity/Buoyant Destabilized Unsaturated/Two-phase Flow Systems: Near-Pore Scale Simulation Using Modified Invasion Percolation

Robert J. Glass, Lane Yarrington

Gravity‐destabilized nonwetting phase invasion in macroheterogeneous porous media: Near‐pore‐scale macro modified invasion percolation simulation of experiments

Robert J. Glass, Stephen H. Conrad, Lane Yarrington

We reconceptualize “macro” modified invasion percolation (MMIP) at the near pore (NP) scale and apply it to simulate the nonwetting phase invasion experiments of Glass et al. [2000] conducted in macroheterogeneous porous media. For experiments where viscous forces were nonnegligible, we redefine …

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Correction to “A modified invasion percolation model for low–capillary number immiscible displacements in horizontal rough‐walled fractures: Influence of local in‐plane curvature” by Robert J. Glass, Michael J. Nicholl, and Lane Yarrington

Robert J. Glass, Michael John Nicholl, Lane Yarrington

A modified invasion percolation model for low-capillary number immiscible displacements in horizontal rough-walled fractures: Influence of local in-plane

JR GLASS, Michael J. Nicholl, Lane Yarrington

The authors develop and evaluate a modified invasion percolation (MIP) model for quasi-static immiscible displacement in horizontal fractures. The effects of contact angle, local aperture field geometry, and local in-plane interracial curvature between phases are included in the calculation of invasion pressure …

A modified invasion percolation model for low‐capillary number immiscible displacements in horizontal rough‐walled fractures: Influence of local in‐plane curvature

Robert J. Glass, Michael John Nicholl, Lane Yarrington

We develop and evaluate a modified invasion percolation (MIP) model for quasi‐static immiscible displacement in horizontal fractures. The effects of contact angle, local aperture field geometry, and local in‐plane interfacial curvature between phases are included in the calculation of invasion pressure for …

Simulation of gravity fingering in porous media using a modified invasion percolation model

Robert J. Glass, Lane Yarrington

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CTH: A Software Family for Multi-Dimensional Shock Physics Analysis

E.S. Hertel, R. L. Bell, M.G. Elrick, A. V. Farnsworth et autres

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