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Numerical Modelling of Fluidelastic Instability in a Normal Triangle Tube Array

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dc.contributor.advisor Hassan, Marwan El Bouzidi, Salim 2014-04-29T19:05:04Z 2014-04-29T19:05:04Z 2014-04 2014-04-23 2014-04-29
dc.description.abstract Flow Induced Vibrations (FIV) are a significant threat to the life of major power plant components such as heat exchangers. The most dangerous of these excitation sources is fluidelastic instability (FEI). Early FEI models focused on predicting the stability threshold of heat exchanger tubes subjected to fluidelastic forces based on empirical data, but the inability of empirical predictions to account for the variability in tube array geometry, pitch, and single or two phase flow limited the usefulness of these models. This thesis investigates the properties of unsteady flow in a normal triangle tube array with a pitch-to-diameter ratio of 1.5. Stability simulations are conducted over a mass damping parameter range 9--200, using a reduced order model of the moving tube. This investigation provides a direct observation of the channel area. When implemented into the time domain model the new parameters provide better agreement with the experimental stability threshold data available. en_US
dc.language.iso en en_US
dc.publisher University of Guelph en_US
dc.subject vibrations en_US
dc.subject flow induced vibration en_US
dc.subject steam generators en_US
dc.subject fluidelastic instability en_US
dc.subject numerical modelling en_US
dc.subject time delay en_US
dc.subject flow cell model en_US
dc.title Numerical Modelling of Fluidelastic Instability in a Normal Triangle Tube Array en_US
dc.type Thesis en_US Engineering en_US Master of Applied Science en_US School of Engineering en_US
dc.rights.license All items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated. University of Guelph en_US

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