Open Access. Powered by Scholars. Published by Universities.®
- Discipline
Articles 1 - 3 of 3
Full-Text Articles in Transport Phenomena
Comsol Simulation Of Pipeline Corrosion With Cathodic Protection, Ethan Scalzo
Comsol Simulation Of Pipeline Corrosion With Cathodic Protection, Ethan Scalzo
Williams Honors College, Honors Research Projects
Cathodic protection (CP) is a widely used technique to mitigate corrosion in buried steel pipelines. This study uses COMSOL Multiphysics to model and analyze the performance of both sacrificial anode and impressed current systems in a simulated 3D environment. The model solves for pipeline potential, current density, and corrosion rate within a surrounding soil domain to assess protection coverage across the pipeline. Simulations were conducted to evaluate the influence of electrode and electrolyte properties on CP effectiveness. The study demonstrates that COMSOL Multiphysics is an effective tool for modeling CP systems, offering insights that align with established industry practices. While …
Characterizing And Quantifying Shear-Induced Hemolysis In A Hollow Fiber Membrane System, Siddhi Bhat
Characterizing And Quantifying Shear-Induced Hemolysis In A Hollow Fiber Membrane System, Siddhi Bhat
Chemical Engineering Undergraduate Honors Theses
Clinical studies have shown that patients undergoing renal replacement therapy are more susceptible to developing hemolysis, or the rupturing of red blood cells. Rapid hemolysis can cause symptoms such as anorexia, vomiting, and even death in severe cases. The aim of this study is to identify how shear stress within a hollow fiber membrane impacts the level of hemolysis that occurs. This allows for the optimization of the ultrafiltration membranes that are typically used for hemofiltration treatments. The variables being studied are the radii of hollow fibers, number of fibers, and volumetric flow rate of blood being circulated. Here, we …
A Computational Study Of The Potential For Lng Tanker Polystyrene Foam Insulation Failure Under Fire Exposure, Jeffrey David Martinez
A Computational Study Of The Potential For Lng Tanker Polystyrene Foam Insulation Failure Under Fire Exposure, Jeffrey David Martinez
Graduate Theses and Dissertations
Liquefied natural gas is shipped across the oceans in large marine carriers. The carriers house the LNG using several different insulation systems. One of these systems involves large aluminum spheres insulated with polystyrene foam. Polystyrene foam is very susceptible to heat degradation. This raised issues as to the extent of possible insulation failure caused by a large ship fire. Experiments were done investigating the nature of polystyrene’s thermal degradation, notably by Brauman, Chen, and Matzinger and Butler. A large scale investigation was also performed by Sandia National Laboratory. However, computational modeling of the degradation was lacking. This work set out …