618-3014/04 – Modelling of Metallurgical Processes (MMP)
| Gurantor department | Department of Metallurgy and Foundry | Credits | 5 |
| Subject guarantor | prof. Ing. Markéta Tkadlečková, Ph.D. | Subject version guarantor | prof. Ing. Markéta Tkadlečková, Ph.D. |
| Study level | undergraduate or graduate | Requirement | Choice-compulsory type B |
| Year | 2 | Semester | summer |
| | Study language | English |
| Year of introduction | 2019/2020 | Year of cancellation | |
| Intended for the faculties | FMT | Intended for study types | Follow-up Master |
Subject aims expressed by acquired skills and competences
Acquired knowledge
- student will be able to formulate basic regularities of physical and numerical process modelling,
- student will be able to describe similarity of processes, derivation of similarity criterion and modelling application in metallurgy of steel production, treatment and casting,
- student will be able to characterise importance, methods and utilisation of modelling methods in technical practice,
Acquired skills
-student will be able to use his knowledge for derivation of similarity criteria and for proposal of physical modelling methods not only in metallurgy
-student will be able to use fundamentals of 3D modelling of geometry and numerical modelling in CFD programme FLUENT.
Teaching methods
Lectures
Individual consultations
Tutorials
Project work
Summary
The subject is focused on general methods of process modelling, as
mathematical methods, so physical methods of modelling. The subject is focused on principle of process algorithm and their visualisation with particular applications directed to the domain of steel making, secondary metallurgy and steel casting.
Compulsory literature:
Recommended literature:
Way of continuous check of knowledge in the course of semester
Verbal examination with written preparation, part of the evaluation is the previous submission of the project on the chosen topic.
E-learning
Other requirements
Semester works from the field of numerical modelling of metallurgical processes in CFD programme ANSYS Fluent.
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
1. Basic terms of process modelling, classification of models according to different criteria. Physical modelling and its importance in various fields of science. System Similarity, the similarity constants. The geometric, kinematic and dynamic similarity. Dynamic similarity of hydrodynamic systems. Basic types of forces in hydrodynamics. Thermal similarity.
2.Dimensionless parameters (similarity criteria), the distribution and properties of similarity criteria. A complete physical equations, the basic equations, the criterial equations. Determination of dimensionless parameters using dimensional analysis, practical examples of using of dimensional analysis.
3. Determination of dimensionless parameters using method of similarity transformation of the basic equations. Similarity transformation of the Navier-Stokes equations. Approximate physical modelling. Automodelling. Physical meaning of some similarity criteria, the issue of respecting of the identity of Fr and Re criteria. Determination of volumetric flow scales.
4. The experimental nature of physical modelling. Methods for determination of retention times, the impulse-response method, the RTD curves, flow visualization. The principles of construction of physical models. Basic experimental techniques in physical modelling of flow of liquid metals.
5. Fundamentals of flow reactors - hypothetical models of flow, plug flow, perfect mixing. Real reactor. Theoretical retention time. Curve C, curve F. A combined flow model, mean retention time, short-flow, dead volume. Dispersion flow model.
6. The selection of suitable mathematical models to describe transient metallurgical processes. Empirical - mathematical and physical (adequate) - mathematical approach a solution. Theoretical foundations of the mathematical description of the transient processes. Approaches and methods for solving of approximation and regression. Parametric identification.
7. Numerical modelling of metallurgical processes. Flow of real fluids. Laminar and turbulent flow. Navier-Stokes equations and continuity equation. Mathematical models of turbulence. Numerical methods.
8.CFD software systems.Examples of using CFD programmes in practice. The procedure of numerical simulation in CFD programme ANSYS FLUENT.
9. Preprocessing: Geometry. Computational mesh.
10. Preprocessing: the definition of a physical model, the choice of turbulence model, setting of the operational conditions, determination of material properties and boundary conditions.
11. Thermal Analysis. Determination of Heat Capacity. Determination of viscosity. Thermodynamic Databases.
12.Processing - Solving: the actual implementation of the calculation (stationary, nonstationary), convergence of the solution. Discretization technique.
13. Postprocessing - evaluation of results.
14. Modelling of metal systems solidification.
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction
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