3D Simulation of Submerged Plates

Anderson, Stein (2023) 3D Simulation of Submerged Plates. [USQ Project]

Text (Project - redacted) Anderson_S_Saleh_Redacted.pdf Download (3MB)

Abstract

Linear Energy Harvesters are a type of hydro generator that are applicable to shallow, low velocity, open channel flows. These types of generators are driven by arrays of shallowly submerged plates. B. Attiya et al. performed Large Eddy Simulations of shallowly submerged plates of varying aspect ratio to analyse the performance of the plates in a multiphase open channel flow. This research project aims to build on their previous works and to improve the performance of the plates by increasing the plates co-efficient of drag.

ANSYS Fluent was used to model the plates for Computational Fluid Dynamics analysis. The projects first aim was to validate the model against the works of B. Attiya using a Reynolds Averaged Navier-Stokes method. A curved profile was then added to the plates for analysis and the purpose of comparison to the flat plates.

It was found that for 250, 500, and 1000mm wide by 100mm high flat plates, by adding a 50mm radius bend to the plate the coefficients of lift and drag were increased. By adding a curve to the plates the 250mm wide plate the drag was increased by 7.35%, the 500mm wide plate 21.06%, and the 1000mm wide plate 6.07%. All plates experienced large increases in lift ranging from 56.3 to 67.0%. It was shown that the curve affected the manner of vortex shedding, with turbulent flows running down the entire rear face of the curved plates.

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Item Type:	USQ Project
Item Status:	Live Archive
Faculty/School / Institute/Centre:	Current – Faculty of Health, Engineering and Sciences - School of Engineering (1 Jan 2022 -)
Supervisors:	Saleh, Khalid
Qualification:	Bachelor of Engineering (Mechanical)
Date Deposited:	22 Sep 2025 04:05
Last Modified:	22 Sep 2025 04:06
URI:	https://sear.unisq.edu.au/id/eprint/52923

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