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Full-Text Articles in Nuclear Engineering
Vibration Fault Detection For Steam Generator Tubing, Brad Black, Laura Simmons, John Chapman, Jared Jennings, Jacob Johnson, Brian Paul, Kyle Woods
Vibration Fault Detection For Steam Generator Tubing, Brad Black, Laura Simmons, John Chapman, Jared Jennings, Jacob Johnson, Brian Paul, Kyle Woods
Faculty Publications and Other Works -- Nuclear Engineering
The detection of flaws within steam generator tubing is an important part of safety in a nuclear plant as it could potentially lead to release of radioactive material if unchecked. The current test method for testing these tubes is expensive and time consuming; however, as sound has been used to detect flaws successfully in other applications, an alternative method for using acoustics and accelerometers to detect flaws is what has been explored in this project. Preliminary results of testing with a simple hollow steel tube have given promising results of detecting a hole as small as 7.66% of the tube …
Predicting Shape And Stability Of Air–Water Interface On Superhydrophobic Surfaces With Randomly Distributed, Dissimilar Posts, B. Emami, Hooman Vahedi Tafreshi, M. Gad-El-Hak, Gary C. Tepper
Predicting Shape And Stability Of Air–Water Interface On Superhydrophobic Surfaces With Randomly Distributed, Dissimilar Posts, B. Emami, Hooman Vahedi Tafreshi, M. Gad-El-Hak, Gary C. Tepper
Mechanical and Nuclear Engineering Publications
A mathematical framework developed to calculate the shape of the air–water interface and predict the stability of a microfabricated superhydrophobicsurface with randomly distributed posts of dissimilar diameters and heights is presented. Using the Young–Laplace equation, a second-order partial differential equation is derived and solved numerically to obtain the shape of the interface, and to predict the critical hydrostatic pressure at which the superhydrophobicity vanishes in a submersed surface. Two examples are given for demonstration of the method’s capabilities and accuracy.