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Numerical Modeling of Air Bubble Transport in Spillway Flow Downstream from Aerator
A simple numerical model for simulation of air bubble transport in the flow downstream from an aerator is constructed and compared with laboratory experiments. The model consists of two...

Hydrodynamics of Deepwater Tension Leg Platforms
A model is presented for investigating the overall quasi-static behavior of tethers, the anchoring elements for a Tension Leg Platform, TLP. Effects of tether weight and curvature, and...

Perturbation Solution to 3-D Nonlinear Cavity Flow Problems
A 3-D nonlinear problem of fully cavitating flow past an axisymmetric body at a small angle of attack is investigated by the perturbation method. The first three order perturbation equations...

A Simulation to Noise Barrier
The problem related to noise barrier is simulated by a still, single frequency, three dimensional sound source located within two parallel screens with rigid back walls. The solution of...

Dynamic Effect of Sediment on Dam Hydrodynamics
The dam-reservoir-foundation interaction problem has been studied by many investigators. A two dimensional model of compressible porous media is employed to analyze the dynamic response...

Interaction Between Waves and a Floating Body with Tension Legs
A boundary element method has been solved to the coupling problem of a two-dimensional tension leg platform interacting with a monochromatic wave train. In the boundary element calculation,...

Computation of Wind Flow Around a Building
A numerical investigation of wind flow around a three-dimensional building is presented by solving weakly compressible flow equations, together with Smogrinsky's subgrid-scale...

A Compact Nonlinear Solution Method for Two Phase Stefan Problems
Finite element formulations for fluid filling problems with solidification are derived using previously developed unified transformation techniques. The nonlinear formulation for two phase...

Numerical Simulation of Dam-Breaking Waves
Recently, as a high-resolution numerical technique, the Total Variation Diminishing (TVD) method is applied to Aerodynamic shock problems successfully. In this paper, a Total Variation...

Numerical Modeling of Pollutant Transport in Estuaries
A robust numerical solution to the pollutant transport phenomenon in an estuary is presented. The fractional step algorithm is employed to split the physical process into convection step...

Diastolic Function Using 3-D Echo Reconstruction and Finite Element Analysis: Applications for Study in Animal Models and Patients
We have initiated animal experiments using three-dimensional reconstruction of echocardiographic recordings and finite element analysis to evaluate the effects of alterations in preload,...

Three-Dimensional Finite Element Analysis of Stress and Activation in the Heart
A finite element (FE) method has been developed for three-dimensional (3D) analysis of stress distributions and activation patterns in the left and right ventricles of the canine heart....

Assessment of Left Ventricular Flow Dynamics Using the Finite Analytic Method: Potential for Clinical Applications
Left ventricular (LV) function is traditionally assessed from chamber wall motion, rheological properties of the myocardium, and invasive measurements of chamber pressure. In order to...

Simulation of Blood-Heart Interaction: Validation of Approach
An existing pressure correction method to model unsteady flow with arbitrarily moving boundaries has been adapted to simulate the interaction of three-dimensional blood flow with a mitral...

A Computer Simulation of the Blood Flow at the Aortic Bifurcation with Flexible Walls
To understand the possible role of hemodynamics in the atherogenesis, especially the effect of the flexibility of the arteries, a two-dimensional numerical model for the blood flow at...

Finite Analytic Explicit Scheme for Viscous Burgers' Equation
Burgers' equation is numerically analyzed by finite analytic method. The basic idea of finite analytic method is to incorporate the analytic solution of partial differential...

Finite Element Stress Analysis of a Spinal Segment
A large number of factors need to be determined to understand the biomechanics of a surgical procedure about the lumbar spine. Some of these factors are amenable to experimental investigations...

Biomechanical Model of a Lumbar Intervertebral Joint?A System Approach
This study was conducted to determine the forces sustained by the lumbar ligaments under flexion-compression using a two-dimensional equilibrium model. The lumbar motion segment was modeled...

Simulation of Head/Neck Response to -Gx Impact Acceleration
The Articulated Total Body (ATB) model has been developed to predictively simulate the head and neck response by specifying a 2-segment/2-joint system driven at the anatomical thoracic...

A Two-Dimensional Model of Airbag Deployment
An interactive program was developed to simulate the unfolding and deploying process of a driver side airbag in the sagittal plane. The airbag was represented by a series of nodes. We...

 

 

 

 

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