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Item Information   Holdings       More by this author     Hooyman, Nick [author]     Milwaukee School of Engineering     Subjects     Rotary pumps     Surface roughness     Channels (Hydraulic engineering)     Surface Properties     MSE Project.     Browse Catalog     by author:      Hooyman, Nick [author]      Milwaukee School of Engineering       by title:      The effects of surfa...         MARC Display

The effects of surface roughness and surface energy on turbulent narrow-channel flow : a report submitted to the faculty of the Milwaukee School of Engineering in partial fulfillment of the requirements for the degree of Master of Science in Engineering / by Nick Hooyman. by Hooyman, Nick [author], Milwaukee School of Engineering Subjects Rotary pumps   Surface roughness   Channels (Hydraulic engineering)   Surface Properties   MSE Project. Description:  48 leaves : illustrations, some of which are in color ; 29 cm. Contents:  Introduction -- Background -- Literature review -- Methods -- Results and discussion -- Conclusions and recommendations. The effects of surface roughness and surface energy on the pressure losses induced in narrow-channel turbulent water flow were explored. A variety of substrates and coatings were applied to a circular interior flow channel, and the pressure losses recorded across the channel at multiple flow rates in the turbulent regime, exploring the hypothesis that the eddies and vortices inherent with turbulent flows were creating new surface bonds with the wall structure leading to a state of affairs in which the wall surface energy would be a determining factor in energy loss of the flow. However, it was determined that surface roughness and Reynold's number have a significant impact on pressure loss through the flow channel, but surface energy did not have a statistically significant impact on pressure loss through the flow channel. This information can be used to predict the impact of coatings on pressure losses that occur through the narrow flow channels present in rotodynamic turbomachinery such as water pumps, and can be used to select or develop new pump coatings. Surface energy of a pump coating can be eliminated as a selection criteria for improved efficiency. Form:  text unmediated volume   Copy/Holding information Location Collection Call No. Status   Walter Schroeder Library Master's Theses AC805 .H66 2014 Available Add Copy to MyList Format: HTMLPlain textDelimited Subject:   Email to:

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