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You searched for id:"oai:tigerprints.clemson.edu:all_theses-4201". One record found.

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Clemson University

1. Nichols, Taylor Edwin. Geometric Characterization of Polygonal Hydraulic Jumps and the Role of Weir Geometry.

Degree: MS, Mechanical Engineering, 2019, Clemson University

Hydraulic jumps are characterized by flows with an abrupt change in the fluid height, as seen in tidal basins, rivers, and dam spillways. They also occur on smaller scales and we have developed a small-scale table top experiment consisting of an impinging fluid jet impacting a horizontal plate to systematically study the geometry of the hydraulic jump. Striking polygonal shapes are observed which depend upon the flow of the impinging jet, fluid properties, weir geometry and the flow history. These steady shapes are reflective of a balance of inertial, pressure, and surface tension forces. The effect of weir height and geometry on the modal behavior and jump geometry is studied. Two experimental protocols are introduced that illustrate the effect of flow history and hysteresis in the formation of polygonal hydraulic jumps. This highlights the nonlinearity inherent in mode selection. We are able to collapse all of our experimental data with the Weber number using the downstream fluid height as the characteristic length scale. The critical wavelength is shown to be approximately constant which strongly implies the mode selection mechanism is related to Plateau-Rayleigh breakup. Our results highlight the complex multiphysics involved in this phenomena. Advisors/Committee Members: Joshua Bostwick, Committee Chair, John Saylor, Richard Miller.

Subjects/Keywords: experimental fluid mechanics; Hydraulic jump; instability; polygonal hydraulic jumps

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Nichols, T. E. (2019). Geometric Characterization of Polygonal Hydraulic Jumps and the Role of Weir Geometry. (Masters Thesis). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_theses/3194

Chicago Manual of Style (16th Edition):

Nichols, Taylor Edwin. “Geometric Characterization of Polygonal Hydraulic Jumps and the Role of Weir Geometry.” 2019. Masters Thesis, Clemson University. Accessed September 19, 2019. https://tigerprints.clemson.edu/all_theses/3194.

MLA Handbook (7th Edition):

Nichols, Taylor Edwin. “Geometric Characterization of Polygonal Hydraulic Jumps and the Role of Weir Geometry.” 2019. Web. 19 Sep 2019.

Vancouver:

Nichols TE. Geometric Characterization of Polygonal Hydraulic Jumps and the Role of Weir Geometry. [Internet] [Masters thesis]. Clemson University; 2019. [cited 2019 Sep 19]. Available from: https://tigerprints.clemson.edu/all_theses/3194.

Council of Science Editors:

Nichols TE. Geometric Characterization of Polygonal Hydraulic Jumps and the Role of Weir Geometry. [Masters Thesis]. Clemson University; 2019. Available from: https://tigerprints.clemson.edu/all_theses/3194

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