Summer Internship Program (Batch 1)_Day 8

Summary

Key Points

• The workshop roadmap includes theoretical understanding on day one, followed by hands-on FEA and CFD sessions using SimScale on days two and three, focusing on aerospace components. 4:02
• SimScale is a browser-based, free-for-students simulation platform that simplifies the process of performing FEA and CFD analyses without requiring extensive software installation. 4:12
• Simulation is crucial in aerospace engineering as it is significantly cheaper and safer than physical testing, allowing for the identification of potential failures before costly real-world tests. 6:24
• Numerical analysis is the foundation of simulation, involving the approximation of complex mathematical problems that lack closed-form solutions by discretizing continuous problems into finite pieces. 10:46
• The Finite Element Method (FEM) is a primary numerical technique used for structural and thermal analysis, which discretizes a domain into elements, applies shape functions, and assembles a global stiffness matrix to solve for displacements. 23:19
• Meshing is a critical step in both FEM and CFD, where the quality of the mesh (e.g., element shape, density) directly impacts the accuracy and convergence of the simulation results. 27:30
• Computational Fluid Dynamics (CFD) uses numerical methods, primarily based on the Finite Volume Method (FVM) and governed by Navier-Stokes equations, to simulate fluid flow behavior. 52:18
• Solvers are algorithms used to solve the large systems of equations generated by FEM and CFD, with direct and iterative solvers being common approaches. 56:39
• Boundary conditions are essential for defining the physical scenario being simulated and must be physically accurate to ensure valid results in both FEM (e.g., fixed supports, forces) and CFD (e.g., velocity inlets, walls). 63:06
• Convergence criteria are used to determine when a simulation has reached a stable and reliable solution, ensuring the trustworthiness of the results. 88:26