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Full-Text Articles in Mechanical Engineering
Developing Dns Tools To Study Channel Flow Over Realistic Plaque Morphology, Ryan M. Beaumont
Developing Dns Tools To Study Channel Flow Over Realistic Plaque Morphology, Ryan M. Beaumont
Electronic Theses and Dissertations
In a normal coronary artery, the flow is laminar and the velocity is parabolic in nature. Over time, plaques deposit along the artery wall, narrowing the artery and creating an obstruction, a stenosis. As the stenosis grows, the characteristics of the flow change and transition occurs, resulting in turbulent flow distal to the stenosis. To date, direct numerical simulation (DNS) of turbulent flow has been performed in a number of studies to understand how stenosis modifies flow dynamics. However, the effect of the actual shape and size of the obstruction has been disregarded in these DNS studies. An ideal approach …
Numerical Model Of The Transient Effects Of A Heat Of Fusion Reservoir Interacting With Two-Phase Flow, Anne-Marie Bechard Thibodeau
Numerical Model Of The Transient Effects Of A Heat Of Fusion Reservoir Interacting With Two-Phase Flow, Anne-Marie Bechard Thibodeau
Electronic Theses and Dissertations
The object of this thesis is to develop a numerical model that simulates the transient behavior of a coaxial, thermal energy storage system consisting of a phase changing material ( P O interacting with a two-phase fluid. The purpose of this model would be to have a useful design tool that could be applied when sizing and building iceon- coil, cooling systems (ice-banks). The numerical model is an explicit finite volume approximation applied to the enthalpy method. It solves a two-dimensional, axisymrnetric, heat conduction problem with conjugate forced convection at its inner boundary. Natural convection is neglected in the PCM. …