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The Effect of Implantation Orientation of a Bileaflet Mechanical Heart Valve on Kinematics and Hemodynamics in an Anatomic Aorta
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: We carry out three-dimensional high-resolution numerical simulations of a bileaflet mechanical heart valve under physiologic pulsatile flow conditions implanted at different orientations in an ...
Direction and Magnitude of Blood Flow Shear Stresses on the Leaflets of Aortic Valves: Is There a Link With Valve Calcification?
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Aortic stenosis caused by valve calcification is a major cause of death around the world. Hemodynamic factors have been suggested to be major players in the development of valve calcification, ...
3D Unsteady RANS Modeling of Complex Hydraulic Engineering Flows. I: Numerical Model
Publisher: American Society of Civil Engineers
Abstract: A general-purpose numerical method is developed for solving the full three-dimensional (3D), incompressible, unsteady Reynolds-averaged Navier-Stokes (URANS) equations in natural river reaches containing complex hydraulic ...
Special Issue on River Flow Hydrodynamics: Physical and Ecological Aspects
Publisher: American Society of Civil Engineers
Large-Eddy Simulation of Three-Dimensional Turbulent Free Surface Flow Past a Complex Stream Restoration Structure
Publisher: American Society of Civil Engineers
Abstract: Large-eddy simulation (LES) of a three-dimensional, turbulent free surface flow past a stream restoration structure with arbitrarily complex geometries is presented. The three-dimensional, incompressible, spatially filtered ...
New Task Committee on Advanced Environmental-Hydraulics Modeling
Publisher: American Society of Civil Engineers
Pulsatile Flow Effects on the Hemodynamics of Intracranial Aneurysms
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: High-resolution numerical simulations are carried out to systematically investigate the effect of the incoming flow waveform on the hemodynamics and wall shear stress patterns of an anatomic ...
Numerical Modeling of Helical Static Mixers for Water Treatment
Publisher: American Society of Civil Engineers
Abstract: To improve the understanding of how static mixers work and how to better utilize them in environmental engineering (or, specifically, drinking water treatment), a numerical model for simulating turbulent flows in helical ...
Coherent Structures in Flat-Bed Abutment Flow: Computational Fluid Dynamics Simulations and Experiments
Publisher: American Society of Civil Engineers
Abstract: Numerical computations and laboratory experiments are carried out to investigate the three-dimensional structure of large-scale (coherent) vortices induced by bridge abutments on a flat bed. A finite-volume numerical method ...
Numerical Simulation of Swirling Flow in Complex Hydroturbine Draft Tube Using Unsteady Statistical Turbulence Models
Publisher: American Society of Civil Engineers
Abstract: A numerical method is developed for carrying out unsteady Reynolds-averaged Navier-Stokes (URANS) simulations and detached-eddy simulations (DESs) in complex 3D geometries. The method is applied to simulate incompressible ...