# 338-0401/02 – CFD simulation and data analysis in BIM models (CFDsim)

 Gurantor department Department of Hydromechanics and Hydraulic Equipment Credits 5 Subject guarantor doc. Ing. Marian Bojko, Ph.D. Subject version guarantor doc. Ing. Marian Bojko, Ph.D. Study level undergraduate or graduate Requirement Compulsory Year 2 Semester winter Study language English Year of introduction 2021/2022 Year of cancellation Intended for the faculties FEI, FS, FAST Intended for study types Follow-up Master
Instruction secured by
BOJ01 doc. Ing. Marian Bojko, Ph.D.
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Credit and Examination 2+2
Part-time Credit and Examination 12+5

### Subject aims expressed by acquired skills and competences

Students will learn the mathematical model of fluid flow including heat transfer by conduction and convection using the finite volume method (FVM). They will be able to create a mathematical model of heat transfer through different construction structures, which will be characterized by materials with different physical properties and the problem subsequently solved. Furthermore, students will be able to define the mathematical model of turbulent flow and apply it to the problems of ventilation in a room, building or production hall.

Lectures
Tutorials
Project work

### Summary

The course is focused on the possibility of modeling the flow of heat transfer (conduction, convection), including the generation of mesh for issues related to the modeling of flow. Students will extend theoretical knowledge in the field transfer of heat, mass and momentum of flow. The finite volume method (FVM) will be used to solve the system of equations describing the flow. The method will focus mainly on the solution of conduction of heat by various construction structures, which will be defined by different material properties. Furthermore, (FVM) will be applied to the issue of air flow in a closed room and thus the solution of air conditioning. ANSYS-Fluent software is used for practical applications of the example (FVM). Numerical simulations will be realized on BIM models within the course. To adjust of geometry in software ANSYS will be used DesignModeler and ANSYS Meshing is used to generation of mesh.

### Compulsory literature:

INCROPERA, F., P. ET AL. Fundamentals of heat and mass transfer. 6th ed.. Hoboken : Wiley, c2007 – xxv. 997 s. ISBN 0-471-45728-0. 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. ANSYS Fluent User’s 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 Tutorial Guide (Release 18.2). 2017. ANSYS Fluent User’s Guide (Release 18.2). 2017.

### Way of continuous check of knowledge in the course of semester

seminar work and oral examination

### Other requirements

The student will elaborate a seminar work for which they have to obtain a minimum number of points for credit Questions for exam: 1. Continuum hypothesis, physical properties of fluids and solids 2. Methods of solution for heat, mass and momentum transfer, transfer definition 3. Convective transfer, diffusion transfer, basic balance equation of transfer 4. Creation of geometry, 2D and 3D cells of mesh, convergence and residuals, acceleration of convergence 5. Boundary conditions 6. Numerical methods of solution, finite volume method 7. Heat transfer equation by conduction, boundary conditions 8. Fundamental equations of mass, momentum and energy, continuity equation, Navier-Stokes equation, energy equation 9. Solution of conduction and convection in laminar flow 10. Turbulence, Reynolds time averaging k-eps two-equation model of turbulence 11. Boundary conditions for k-eps turbulent model, mass flow, turbulent quantities, inlet pressure, outlet pressure, Outflow 12. Solution of conduction and convection in turbulent flow At least 70% attendance at the exercises. Absence, up to a maximum of 30%, must be excused and the apology must be accepted by the teacher (the teacher decides to recognize the reason for the excuse).

### Prerequisities

Subject has no prerequisities.

### Co-requisities

Subject has no co-requisities.

### Subject syllabus:

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### Conditions for subject completion

Full-time form (validity from: 2011/2012 Winter semester)
Min. number of pointsMax. počet pokusů
Credit and Examination Credit and Examination 100 (100) 51
Credit Credit 35  25
Examination Examination 65  26 3
Mandatory attendence participation: full-time study - 80% attendance part-time study - 50% attendance

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Conditions for subject completion and attendance at the exercises within ISP: In order to complete the credit, students must prepare an individual semester project. On the basis of the completed credit, they can pass an exam, which will consist of a written and oral part.

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### Occurrence in study plans

Academic yearProgrammeBranch/spec.Spec.ZaměřeníFormStudy language Tut. centreYearWSType of duty
2023/2024 (N0732A260030) Civil Engineering - BIM Engineering P English Ostrava 2 Compulsory study plan
2023/2024 (N0732A260030) Civil Engineering - BIM Engineering K English Ostrava 2 Compulsory study plan
2022/2023 (N0732A260030) Civil Engineering - BIM Engineering P English Ostrava 2 Compulsory study plan
2022/2023 (N0732A260030) Civil Engineering - BIM Engineering K English Ostrava 2 Compulsory study plan
2021/2022 (N0732A260030) Civil Engineering - BIM Engineering P English Ostrava 2 Compulsory study plan
2021/2022 (N0732A260030) Civil Engineering - BIM Engineering K English Ostrava 2 Compulsory study plan

### Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner