School of Engineering Department of Mechanical and Aerospace Engineering 184 Aerodynamic Flow Study Supervisor: FU Lin / MAE Student: PARK Joon-ho / AE Course: UROP 1100, Summer Aerodynamic analysis is essential for optimizing the performance and efficiency of objects operating in fluid environments. This project aims to investigate flow characteristics around various geometries by employing Computational Fluid Dynamics (CFD). Simulations are conducted using SU2, with unstructured and structured meshes created in Gmsh and post-processed in ParaView. A primary objective is to develop proficiency with CFD tools and to acquire the skills to design and generate custom mesh files for diverse geometries. Preliminary results demonstrate successful mesh generation and simulation setup, providing a foundation for more advanced aerodynamic assessments in subsequent phases of the research. Aerodynamic Flow Study Supervisor: FU Lin / MAE Student: YAU Chi Tak / AE Course: UROP 1100, Summer This aerodynamic flow research will primarily focus on using computational fluid dynamics (CFD) software to simulate the normal shock phenomenon in a converging-diverging nozzle (C-D nozzle). Simulations are done with the open-source CFD software SU2 to compute and numerically solve the compressible Euler equations. The equation is simplified from the Navier-Stokes equations by neglecting the viscosity of the fluid and assuming the flow is adiabatic. By simulating the normal shock phenomenon in SU2, the goal of this research is to replicate the flow condition in the C-D nozzle and aim for matching the simulation results with the analytical solution. By conducting this research, a better understanding of complex supersonic flow and the capabilities of CFD software can be gained. SPH Particle Method for Predicting Fluid-Structure Interaction Supervisor: FU Lin / MAE Student: CHAN Pak Tsim / MECH Course: UROP 1100, Fall In Hong Kong, dams are usually seen in the harbor area. The purpose of those dams is to reduce the force brought by the water wave. The dam’s design will affect the efficiency of reducing the force exerted. Therefore, this research aims to figure out the relationship between the dam and the pressure exerted on it. This research will mainly focus on the inclined angle of the obstacle, alpha. Using the smooth-particle hydrodynamic method, a case dam break in an obstacle at different inclined angles will be simulated. Hence, the pressure acting on obstacles will be analyzed. Eventually, a conclusion will be drawn to optimize the dam's design.
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