Three Dimensional Modeling of Concrete Dams with Cracks Using Boundary Element Methods
Determining uplift pressure distributions in cracks in a concrete dam requires coupling between crack hydraulics and the stresses and displacements occurring in the rock and the concrete...

hpVersion of the Finite Element Method in Boundary Layer Problems
The performance of hp-version of the finite element method in the case of boundary layer problems of convection-diffusion type is presented. The method is also considered in the case of...

Gravity Dam Response Including Interaction Effects
The seismic response of 2D gravity dam-reservoir-foundation including the wave absorption effect along the reservoir bed is analyzed in frequency domain using substructure approach. The...

Regional Ocean Resources Management
The fluid nature of the ocean environment and the mobility of living ocean resources place obvious limits on the ability of state and federal resource managers to effectively manage based...

Numerical Simulation of Localization in Granular Materials
The structure of persistent shear bands in granular materials is investigated by numerically simulating an idealized assembly of two-dimensional particles. Flexible stress-controlled boundaries...

Penetration Tests in a Particulate Calibration Chamber
A numerical technique which couples discrete element method with boundary element method has been developed to simulate a two dimensional particulate assembly. Soil particles in the near...

Curvature Effects on the Deflection and Vibration of Cross-Ply Shallow Shells
The use of high performance materials is becoming increasingly significant in structures subjected to severe loading conditions. Effects of curvature on the stiffness characteristics of...

Efficient Structural System Reliability Assessment by Monte-Carlo Methods
Monte Carlo methods can be used to good advantage since the required probability of failure is formulated as a multi-dimensional integral of the probability density function of the basic...

Wave Propagation in Hyper-Structures
The concept of hyperelement was introduced by E. Kausel and J.M. Roesset, 1977 in connection with the derivation of the dynamic stiffness matrix for layered continuum problems involving...

Flow Separation of Currents in Shallow Water
Flow separation of currents in shallow coastal areas is investigated using a boundary layer model for two-dimensional (depth-averaged) tidal flow past an elliptic headland. If the shoaling...

Boundary Fitted Estuarine Water Quality Model
A two-dimensional, vertically-averaged boundary fitted coordinate pollutant transport model was developed for application to estuarine and coastal sea regions. The governing convective-diffusion...

Biofilm Surface Positioning

Mudflow Rheology in a Vertically Rotating Flume
Joint research by the U.S. Geological Survey and the University of Missouri-Rolla currently (1990) is being conducted on a 3.05 meters in diameter vertically rotating flume used to simulate...

Pressure and Stress Distributions Due to a Submerged Impinging Jet
This investigation examines the pressure and shear stress distribution at a smooth planar boundary in the impingement region of a submerged vertical jet in water. The mean pressure and...

Blocking of Layered Flows in Channels of Gradually Varying Geometry

Turbulent Mixing Due to Kelvin-Helmholtz Waves in the Atmospheric Boundary Layer

Parameterization of Turbulent Exchanges in Stably Stratified Atmospheric Layers

Large-Scale Vortical Structure in the Turbulent Flows Under Unstably-Stratified Conditions

Asymmetric Transport in Convective Turbulence

Dispersion in a Stratified Flow Adjacent to a Wall

 

 

 

 

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