MEEG 458
Computational Fluid Dynamics
3 Cr.
Course objectives:
The course aims to provide a basic knowledge of computational fluid dynamics. The students will know the governing equations related to CFD and solve simple convection and diffusion problems through hand calculations. They will also be able to conduct simulations in simple geometries by following the overall procedure of CFD.
Course Plan (minimum 45 hours)
Theory (30 hours)
Introduction to CFD:
Short revision of the fluid mechanics (classification of the flows, fluid properties), applications of CFD (2 hours)
Governing equations:
Models of the flow, substantial derivative, divergence of the velocity, continuity equation, momentum equation, equations for inviscid flow in Lagrangian and Eulerian forms. (6 hours)
Basics of discretization:
Types of discretization, finite difference method, limitations of FDM, transformation of the grids (4 hours)
Finite volume method for diffusion problems:
General transport equation, FVM for one, two and three dimensional steady state diffusion, numerical examples (6 hours)
Finite volume method for convection - diffusion problems:
Steady one dimensional convection and diffusion equation, differencing schemes and their assessments, numerical examples (4 hours)
Solution algorithms for pressure-velocity coupling in steady flows:
Staggered grid, SIMPLE and other types of algorithms (4 hours)
Turbulence modeling:
Introduction of the turbulent flow and eddies, Reynolds averaged Navier Stokes equations and types of turbulence models (4 hours)
Practical (18 hours)
Internal pipe flow:
Mesh independence study, sensitivity of the geometric parameters, comparison with analytical result (4 hours)
Flow around a bluff body:
Transient analysis, Interface between two fluid domains (6 hours)
CFD in heat-transfer applications:
Example of CFD in a simple heat exchanger (2 hours)
Multiphase flow:
Setting up a domain with multiple fluid, VoF method, Lagrangian-Eulerian approach, Cavitation prediction (2 hours)
CFD in turbo-machinery applications:
Turbogrid, Setups related to turbo-machinery, Post processing (2 hours)
Interpretation of results from CFD (2 hours)
Mini projects and assignments
Course evaluation
Final Evaluation 50 marks
• Objective 10 marks
• Subjective 40 marks
Internal Evaluation 50 marks
• Internal exam 20 marks
• Assignments 30 marks
REFERENCE TEXTS
1. Computational Fluid Dynamics: The Basics with Applications by John D. Anderson, Jr.
2. An introduction to Computational Fluid Dynamics: The Finite Volume Method by H.K. Versteeg and W. Malalasekera