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Hydrodynamic Analysis and Stability Investigation of A Floating Model of Waste Collection in Port Waters

Sabbaghi, Ahmad Reza | 2024

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 57645 (08)
  4. University: Sharif University of Technology
  5. Department: Mechanical Engineering
  6. Advisor(s): Abbaspour, Majid
  7. Abstract:
  8. Given that achieving the form of hydrodynamic hulls has made it possible to reach higher speeds, much research has been conducted today to reduce the drag force exerted on vessels and to keep them stable in calm and rough water in deep and shallow areas.In this project, a catamaran garbage collector vessel has been designed and developed specifically for the cleaning and collection of surface waste in ports. The design of this vessel aims to reduce the environmental impact of floating waste and improve the efficiency of cleaning operations. The double-hull structure (catamaran) of this vessel allows for high stability and hydrodynamic efficiency.To evaluate the performance of this vessel, hydrostatic and hydrodynamic analyses have been performed using numerical methods. In the hydrostatic analysis, the initial stability, buoyancy, and center of gravity position were investigated, and in the hydrodynamic analysis, the resistance to motion, wave effects, and energy efficiency were calculated. These analyses were performed using advanced numerical simulation software and show the results of the design optimization. In this thesis, analytical methods have been used to analyze the static stability and to analyze the two-degree-of-freedom motions of the catamaran vessel in calm water, numerical solution methods have been used. For this purpose, the finite volume method has been used in the numerical solution method and to solve the Navier-Stokes equations in the unsteady state, the volume of fluid (VOF) method has been used to track the free surface position, and the − model has been used to model the flow disturbances.The results of this study show that the designed vessel, in addition to being stable in various marine conditions, is highly efficient in collecting waste. This vessel can be used as an effective and sustainable solution to reduce water pollution and preserve the aquatic environment
  9. Keywords:
  10. Static Stability ; Dynamic Stability ; Catamaran Boat ; Garbage Collection ; Computational Fluid Dynamics (CFD) ; Volume of Fluid ; Waste Collection Vessel

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