338-0521/01 – 3D Fluid Flow (3Dpro)

Gurantor departmentDepartment of Hydromechanics and Hydraulic EquipmentCredits3
Subject guarantordoc. Ing. Marian Bojko, Ph.D.Subject version guarantordoc. Ing. Marian Bojko, Ph.D.
Study levelundergraduate or graduateRequirementChoice-compulsory
Year2Semesterwinter
Study languageCzech
Year of introduction2004/2005Year of cancellation
Intended for the facultiesFS, HGF, USPIntended for study typesFollow-up Master
Instruction secured by
LoginNameTuitorTeacher giving lectures
BOJ01 doc. Ing. Marian Bojko, Ph.D.
KOZ30 prof. RNDr. Milada Kozubková, CSc.
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Graded credit 2+1
Part-time Graded credit 8+4

Subject aims expressed by acquired skills and competences

In this course, students will learn about the physical importance of turbulence in the flow of real fluids in general three-dimensional geometry. Furthermore, they will learn in detail the creation of computational geometry in the software DesignModeler and SpaceClaim and the creation of a computational grid in the ANSYS Meshing program in the ANSYS software environment. They will also acquire knowledge and skills in designing and defining numerical simulations for solving problems of mixture flow including chemical reactions with heat transfer and radiation, multiphase flow and time-dependent tasks. In addition, they will encounter the problem of flow around of bodies and the flow of solid particles in the form of a discrete phase.

Teaching methods

Lectures
Tutorials

Summary

The course deals with the physical meaning of turbulence and mathematical models of turbulent flow in general three-dimensional geometry. The defined mathematical model is applied to three-dimensional geometries created in DesignModeler and SpaceClaim. Subsequently, a computer grid is generated in ANSYS Meshing. The mathematical model is supplemented by boundary and initial conditions. The theory is applied to examples of gas mixture flow, including consideration of heat source or chemical reaction with heat transfer and radiation. Numerical calculations of multiphase flow and flow around the bodies for stationary and non-stationary tasks will be realized. Also the problems of flow of solid particles in the form of discrete phase, etc. For the solution is applied software product Ansys Fluent, which uses the finite volume method.

Compulsory literature:

SHAUGHNESSY, E. J., KATZ, I. M., SCHAFFER, J. P. INTRODUCTION TO FLUID MECHANICS. New York: Oxford University Press, Inc. 2005. p. 1018. ANSYS Fluent Theory Guide (Release 18.2). 2017. WILKES, J., O. Fluid mechanics for chemical engineers with Microfluidics and CFD. 2nd ed. Upper Saddle River: Prentice Hall Professional Technical Reference, c2006. Prentice Hall international series in the physical and chemical engineering sciences. ISBN 0-13-148212-2.

Recommended literature:

RODI, W., FUEYO, N. Engineering Turbulence Modelling and Experiments 5. First edition. Oxford: ELSEVIER SCIENCE Ltd. 2002. p. 1010. ISBN 0-08-044114-9. ANSYS Fluent User’s Guide (Release 18.2). 2017.

Way of continuous check of knowledge in the course of semester

E-learning

no

Další požadavky na studenta

no .

Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

Contens of subject L-Lecture, E Exercise 1. L.: Introduction, numerical modeling of flow commercial systems (Fluent 5, Fluent 6-12 CFX, Rampant, Fidap, nekton, Ansys - Flotran Star 3D, Gambit), a survey of solved problems E.: find information on CFD on internet address (www.fluent.com, http://www.ansys.com/products/fluid-dynamics/cfx/ ) basic pull-down menus and menu pack Gambit. 2. L.: Software environment software Gambit 2.4.26. Types of 2D and 3D elements, formats of imported geometry from CAD programs. E.: Spatial geometry creation, import of various formats (*. igs, *. stp) into the program environment Gambit, updated geometry. 3. L.: The evaluation criteria of quality of computer networks, the types of boundary layers E.: Application of various elements on 3D geometry, evaluate of quality computer networks, the number of elements, the creation of various types of boundary layers, export of computer networks within the program environment Fluent 4. L.: The numerical solution of differential equations, integral method, finite volume method, simple and simplec methods, interpolation scheme, convergence (residuals, uderrelax) E.: Roll-up menu Fluent characteristic the basic philosophy of numerical simulations (defining a mathematical model, boundary conditions, physical properties of media, initialisation, solutions and evaluation) 5. L.: Mathematical models of turbulence in Fluent - compressible flow, the N-S equation, continuity equation, Reynolds equation, time averaging, Reynolds rules, Boussinesq 's hypothesis, two equation turbulence model (k-eps model, the RNG model, the RSM model, the k-  model, Spalart-Almaras model), an adaptation of the grid E.: Testing of different turbulence models and wall functions for calculating the flow around step in 3D, network adaptation, evaluation using Excel and Fluent 6. L.: The boundary conditions in Fluent, change the type of boundary conditions, input profiles for the boundary conditions, calculation methods, evaluation E.: Entering the various types of boundary conditions, boundary conditions using profiles for spatial dependence or C language for the time dependence 7. L.: Energy equation for incompressible and compressible flow, wall heat transfer (thin wall), the heat transfer through actual wall thickness (solid), types of wall boundary conditions, modeling the flow near a wall by wall functions E.: Application of heat transfer during fluid flow in thin wall pipe and real wall thickness, the change of thermal boundary conditions for the walls, evaluation and comparison 8. L.: The periodical and symmetry boundary conditions, the physical properties of fluids dependent on temperature, definitions in the program Fluent E.: Application of periodical and symmetry boundary conditions on 2D and 3D computational domain 9. L.: Transport equations for mass fractions, the definition of diffusive flux and source term due to chemical reactions, the definition of the mixture and calculation of physical properties of the mixture E.: Application of the calculation of the gas mixture in three-dimensional geometry, the definition of the mix and mass fractions on the inlet and outlet boundary condition, evaluation in the program Fluent 10. L.: The flow with solid particles and drops, the trajectory, the definition of discrete phases, the interaction with continuous phase, phase change E.: Application of flow of solid particles and drops in three-dimensional field, the influence of gravity, different granulometry, the number of discrete phases 11. L.: Gas flow with chemical reactions and heat transfer with conduction and radiation, energy equation, gas phase combustion models E.: Combustion of gaseous components in the application on the burner, an individual semestral work, assignment 12. L: Multiphase flow, characteristics of mathematical models VOF, Mixture, Euler, defining the various phases, the physical properties of phases E: Making computational mesh of the project semester, setting a mathematical model, numerical simulation 13. L.: Burning fossil fuels, the definition of cavitation using a mathematical model of multiphase E.: Testing of various parameters on the example of a semester project (boundary conditions, mathematical models of turbulence, etc.) 14. L.: E.: Presentation of semester work, problem definition, calculation methods, results presentation, semestral work processing to presentation in Power-Point, animation

Conditions for subject completion

Full-time form (validity from: 2011/2012 Winter semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Graded exercises evaluation Graded credit 100  51
Mandatory attendence parzicipation:

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Occurrence in study plans

Academic yearProgrammeField of studySpec.ZaměřeníFormStudy language Tut. centreYearWSType of duty
2019/2020 (N1701) Physics (1702T001) Applied Physics P Czech Ostrava 2 Choice-compulsory study plan
2018/2019 (N1701) Physics (1702T001) Applied Physics P Czech Ostrava 2 Choice-compulsory study plan
2017/2018 (N1701) Physics (1702T001) Applied Physics P Czech Ostrava 2 Choice-compulsory study plan
2016/2017 (N1701) Physics (1702T001) Applied physics P Czech Ostrava 2 Choice-compulsory study plan
2016/2017 (N1701) Physics (1702T001) Applied Physics P Czech Ostrava 2 Choice-compulsory study plan
2015/2016 (N1701) Physics (1702T001) Applied physics P Czech Ostrava 2 Choice-compulsory study plan
2014/2015 (N1701) Physics (1702T001) Applied physics P Czech Ostrava 2 Choice-compulsory study plan
2013/2014 (N1701) Physics (1702T001) Applied physics P Czech Ostrava 2 Choice-compulsory study plan
2012/2013 (N2301) Mechanical Engineering (3909T001) Design and Process Engineering (16) Hydraulics and Pneumatics P Czech Ostrava 2 Compulsory study plan
2012/2013 (N2301) Mechanical Engineering (3909T001) Design and Process Engineering (16) Hydraulics and Pneumatics K Czech Ostrava 2 Compulsory study plan
2011/2012 (N2301) Mechanical Engineering (3909T001) Design and Process Engineering (16) Hydraulics and Pneumatics P Czech Ostrava 2 Compulsory study plan
2011/2012 (N2301) Mechanical Engineering (3909T001) Design and Process Engineering (16) Hydraulics and Pneumatics K Czech Ostrava 2 Compulsory study plan
2010/2011 (N2301) Mechanical Engineering (3909T001) Design and Process Engineering (16) Hydraulics and Pneumatics P Czech Ostrava 2 Choice-compulsory study plan
2010/2011 (N2301) Mechanical Engineering (3909T001) Design and Process Engineering (16) Hydraulics and Pneumatics K Czech Ostrava 2 Choice-compulsory study plan
2009/2010 (N2301) Mechanical Engineering (3909T001) Design and Process Engineering (16) Hydraulics and Pneumatics P Czech Ostrava 2 Choice-compulsory study plan
2009/2010 (N2301) Mechanical Engineering (3909T001) Design and Process Engineering (16) Hydraulics and Pneumatics K Czech Ostrava 2 Choice-compulsory study plan
2008/2009 (N2301) Mechanical Engineering (3909T001) Design and Process Engineering (16) Hydraulics and Pneumatics P Czech Ostrava 2 Choice-compulsory study plan
2008/2009 (N2301) Mechanical Engineering (3909T001) Design and Process Engineering (16) Hydraulics and Pneumatics K Czech Ostrava 2 Choice-compulsory study plan
2007/2008 (N2301) Mechanical Engineering (3909T001) Design and Process Engineering (16) Hydraulics and Pneumatics P Czech Ostrava 2 Choice-compulsory study plan
2007/2008 (N2301) Mechanical Engineering (3909T001) Design and Process Engineering (16) Hydraulics and Pneumatics K Czech Ostrava 2 Choice-compulsory study plan
2006/2007 (N2301) Mechanical Engineering (3909T001) Design and Process Engineering (16) Hydraulics and Pneumatics P Czech Ostrava 2 Choice-compulsory study plan
2006/2007 (N2301) Mechanical Engineering (3909T001) Design and Process Engineering (16) Hydraulics and Pneumatics K Czech Ostrava 2 Choice-compulsory study plan
2005/2006 (N2301) Mechanical Engineering (3909T001) Design and Process Engineering (16) Hydraulics and Pneumatics P Czech Ostrava 2 Choice-compulsory study plan
2005/2006 (N2301) Mechanical Engineering (3909T001) Design and Process Engineering (16) Hydraulics and Pneumatics K Czech Ostrava 2 Choice-compulsory study plan
2004/2005 (N2301) Mechanical Engineering (3909T001) Design and Process Engineering (16) Hydraulics and Pneumatics P Czech Ostrava 2 Choice-compulsory study plan
2004/2005 (N2301) Mechanical Engineering (3909T001) Design and Process Engineering (16) Hydraulics and Pneumatics K Czech Ostrava 2 Choice-compulsory study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner
ECTS - MechEng - Master Studies 2015/2016 Full-time English Choice-compulsory 301 - Study and International Office stu. block
ECTS - MechEng 2014/2015 Full-time Czech Choice-compulsory 301 - Study and International Office stu. block
ECTS - MechEng 2013/2014 Full-time Czech Choice-compulsory 301 - Study and International Office stu. block
ECTS - MechEng 2012/2013 Full-time Czech Choice-compulsory 301 - Study and International Office stu. block