# 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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