Computational Fluid Dynamics (E181107)
Departments: | ústav procesní a zpracov. techniky (12118) |
Abbreviation: | | Approved: | 04.06.2010 |
Valid until: | ?? | Range: | 2P+2C |
Semestr: | * | Credits: | 4 |
Completion: | Z,ZK | Language: | EN |
Annotation
Lectures are oriented upon fundamentals of CFD and first of all to control volume methods (application using Fluent)
Teacher's
Ing. Marek Pátý Ph.D.
Zimní 2023/2024
prof. Ing. Rudolf Žitný CSc.
Zimní 2022/2023
doc. Ing. Karel Petera Ph.D.
Zimní 2021/2022
Structure
1. Applications
Aerodynamics. Drag coefficient.
hydraulic systems (fuel pumps, injectors), spray and droplet formation, new application magnetorheological and electrorheological fluids / suspension, brakes.
Turbomachinery.
Chemical engineering reactors, combustion.
2.Implementation CFD in standard software packages Fluent Ansys Gambit.
Problem classification: compressible/incompressible. Types of PDE (hyperbolic, eliptic, parabolic) - examples.
3.Weighted residual Methods (steady state methods, transport equations). Finite differences, finite element, control volume and meshless methods.
4. Mathematical and physical requirements of good numerical methods: stability, boundedness, transportiveness. Order of accuracy. Stability analysis of selected schemes.
5. Balancing (mass, momentum, energy). Fluid element and fluid particle. Transport equations.
6. Navier Stokes equations. Turbulence. Transition laminar-turbulent. RANS models: gradient diffusion (Boussinesque). Prandtl, Spalart Alamaras, k-epsilon, RNG, RSM. LES, DNS.
7. Navier Stokes equations solvers. Problems: checkerboard pattern. Control volume methods: SIMPLE, and related techniques for solution of pressure linked equations. Approximation of convective terms (upwind, QUICK). Techniques implemented in Fluent.
8. Applications: Combustion (PDF models), multiphase flows.
Structure of tutorial
Fluent tutorials
Literarture
Requirements
Fundamental mathematics (derivatives, integrals, vectors)