# Computer Simulation of Dry Layered Granular Flow Down an Incline Composed of Grains

*Experiments show that gravity-driven dry granular flows are essentially layered for smooth spheres. This paper describes layer-to-layer interaction in the flow. Assuming two-dimensional...*

Numerical Simulation of a Sphere Moving Down an Incline with Identical Spheres Placed Equally Apart

*This paper describes a numerical study of an elastic sphere moving down an incline with a string of identical spheres placed equally apart. Two momentum equations and a moment equation...*

A Sphere Moving Down an Inclined Bumpy Surface

*A sphere moving down a bumpy incline in the air is studied theoretically and experimentally. A method based on the principle of energy conservation is used to express the average velocity...*

Pressure Losses Across Sequential Stenoses in Collapsible Tubing

*The fluid dynamics of a model of a diseased artery with multiple stenoses were investigated in a recirculating steady-flow system over a range of Reynolds numbers (Re) from 30 to 1100....*

Pulmonary Artery Velocity Profiles in Young Lambs

*This report describes progress made in our laboratory in examining pulmonary artery velocity patterns in normally maturing lambs. Lambs from four age groups were selected for study--2...*

Flow in a Model Symmetric Bifurcation

*Flow through bifurcations is of particular interst to the field of hemodynamics and respiration dynamics. In this paper flow through a model symmetric bifurcation is studied experimentally...*

Fluid Dynamics at the Carotid Bifurcation

*Arterial wall distensibility is believed to be of secondary importance to the general flowfield of the human carotid artery. However, it has been reported that it may have greater influence...*

Lumped Parameter Model for the Dynamics of the Pulmonary Circulation

*The pulmonary circulation is a low pressure system such that respiration has an important effect on pulmonary hemodynamics and has to be taken into account when predicting its behavior....*

Roll-Waves on a Non-Newtonian Mud Layer

*This article extends the theory of roll-waves due to Dressler (1949) to a thin layer of mud modeled as a power law fluid. Roll-waves are periodic bores moving at a constant velocity down...*

Numerical Simulations of Diastolic Flow Patterns in a Model Left Ventricle with Varying Degrees of Mitral Stenosis

*Blood flow patterns in the left ventricle are undoubtedly influenced by the physical and mechanical state of the natural mitral valve apparatus or the geometry of an artifical valve replacement....*

Granular Flow on a Bumpy Inclined Chute

*Theoretical predictions for steady, uniform granular flows of identical, smooth, nearly elastic disks and spheres on bumpy inclined chutes are obtained. Kinetic constitutive theory is...*

Pattern Formation and Time-Dependence in Flowing Sand

*The authors present results for a number of experiments on flowing granular materials and a novel cellular automata model for the flow of these materials when the grains are long and thin....*

Modeling the Chaotic Behavior in Simple Shear Granular Flows

*Simple shear granular flows have demonstrated a variety of puzzling phenomena. Both computer simulations and physical experiments have discovered particle grouping, layering and shear...*

Mechanics of Granular Materials at Very Low Effective Stress Levels

*Gravity's influence on laboratory specimens of uncemented granular materials subjected to low effective stresses, makes it impossible to evaluate constitutive properties in an unambiguous...*

Influence of Gas Phase Turbulence on the Transport of Particles

*An interesting and perhaps unexpected flow feature characterizing the transport of a gas-solid suspension in a vertical duct is the radial nonuniformity of particles over the tube cross-section....*

Hydrogen Reduction of Lunar Soil and Simulants

*Carbotek, Inc., and the Energy and Environmental Research Center (EERC) are cooperating on further development of the Carbotek process to produce oxygen from lunar ilmenite by hydrogen...*

Structural Considerations in the Design of a Mars Mission Aerobrake

*A new area of civil engineering is emerging. This area will provide structures for outposts on the moon, resource development and exploration of Space. Spacecraft traveling at very high...*

Three-Dimensional Eulerian-Lagrangian Transport Model

*An Eulerian-Lagrangian algorithm, based on operator-splitting techniques has been formulated for the three-dimensional advection-diffusion equation. This combines the advantage of a fixed...*

A PC Modelling System for the Simulation of Transport and Fate of Solutes and Suspended Substances

*PARTICLE is a numerical computer model for the simulation of transport and fate of discharged, dissolved or suspended substances. The model is based upon the Lagrangian approach and calculates...*

Continuum Model for Flows in Emergent Marsh Vegetation

*Modeling of flows in tidal marshes requires modifications to the classical equations of open channel flow. In this study, the authors formulate an equivalent continuum model for tidal...*

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