Course detail

Practical Applications of CFD

FSI-K20Acad. year: 2023/2024

The course provides an introduction to the usage of a commercial CFD software and a brief introduction to solving various types of computational problems in engineering. During the course, the students will learn about the creation of flow domain geometry and computational grid, the ways to set boundary conditions and select appropriate computational models, as well as about setting up various parameters in a simulation, monitoring and running computation, and evaluating the results. The problems discussed in the course include 2D and 3D cases, convection, heat transfer, and transient computations. The seminars are held in a computer laboratory and a main part of the course consists of independent work on practical problems. The students will learn to use the ANSYS software suite, namely SpaceClaim for geometry modelling, ANSYS Meshing and Fluent Meshing for grid generation, ANSYS Fluent for the solution, and CFD-Post for the analysis of results.

Language of instruction

Czech

Number of ECTS credits

3

Mode of study

Not applicable.

Guarantor

doc. Ing. Vojtěch Turek, Ph.D.

Department

Institute of Process Engineering (ÚPI)

Entry knowledge

It is recommended that the students have passed the “Computational Modelling of Fluid Flow (KPT)” course.

Rules for evaluation and completion of the course

Credits will be awarded upon successful completion of a technical report on the solution of a specific computational problem. The report must contain the description of the problem, overview of the employed methods and solution steps (including the settings of boundary conditions), as well as the summary and analysis of results in both graphical and alphanumeric form.
Credits will be awarded only to students who have regularly participated in the seminars, i.e., in at least two thirds of them (9 out of the total 13).

Aims

The objective of the course is to provide hands-on experience in solution of various types of problems that are typical of CFD and its industrial application.
The students will get acquainted with the complete process of setting up and solving fluid flow problems using commercial software ANSYS Fluent. They will learn about various methods and ways to construct the geometry, create computational grids, define boundary conditions, and choose appropriate models for specific CFD problems. They will gain experience in computational modelling of various types of problems encountered in engineering practice, including the overlap with multiphysics problems.

Study aids

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

Leschziner, M.: Statistical Turbulence Modelling for Fluid Dynamics – Demystified: An Introductory Text for Graduate Engineering Students. Imperial College Press, London, UK (2015) (EN)
Wilcox, D. C.: Turbulence Modeling for CFD, 3rd ed. DCW Industries, Inc., La Cañada, CA, USA (2006) (EN)
Menter, F. R.; Lechner, R.; Matyushenko, A.: Best Practice: RANS Turbulence Modeling in Ansys CFD. ANSYS, Inc., Canonsburg, PA, USA (2022) (EN)

Recommended reading

Versteeg, H. K.; Malalasekera, W.: An Introduction to Computational Fluid Dynamics: The Finite Volume Method, 2nd ed. Pearson Education Ltd., Harlow, UK (2007) (EN)
Dahlquist, G.; Björck, Å.: Numerical Methods. Dover Publications, Mineola, NY, USA (2003) (EN)

Classification of course in study plans

  • Programme N-PRI-P Master's, 2. year of study, winter semester, compulsory-optional

Type of course unit

 

Computer-assisted exercise

39 hours, compulsory

Teacher / Lecturer

Ing. Jiří Vondál, Ph.D.

Syllabus

1. Creation of geometry and grid generation for 2D problems.
2. Setting up boundary conditions, selection of appropriate models for 2D flow computations (laminar and turbulent), carrying out computation and analysis of results.
3. Creation of geometry and grid generation for 3D problems.
4. Setting up boundary conditions and models for 3D flow problems, carrying out computation and analysis of results.
5. Assignment of individual project – simulation of a 3D tubular heat exchanger, advanced geometry manipulations for CFD problems.
6. Grid generation for the computation of a 3D heat exchanger.
7. Setting up and carrying out flow simulation including heat transfer in the 3D heat exchanger.
8. Creation of geometry and grid generation for 2D transient problem of flow around a cylinder.
9. Carrying out transient simulation of turbulent flow around a cylinder, generating von Karman vortex street.
10. Analysis of results of the transient flow around cylinder, frequency analysis
11. Parametrisation of problems, optimisation in CFD computations.
12. Fluid-structure interaction (FSI) – setting up and transfer of data between ANSYS Fluent and ANSYS Mechanical.
13. Course summary, overview of the models recommended for engineering CFD applications.