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Numerical Simulation of Pollutants and Fire Propagation

Type of study Follow-up Master
Language of instruction Czech
Code 338-0720/02
Abbreviation NumModPo
Course title Numerical Simulation of Pollutants and Fire Propagation
Credits 5
Coordinating department Department of Hydromechanics and Hydraulic Equipment
Course coordinator doc. Ing. Tomáš Blejchař, Ph.D.

Osnova předmětu

L - Lecture, E - Exercise
1. L.: Introduction, numerical modeling of fluid flow - various commercial systems, Fluent - physical models, turbulence models, commercial systems for the solution of flow, solved examples from the firms, environmental jobs
E.: Working on workstations, introduction to Fluent
2. L.: Turbulent and laminar fluid flow, coordinate system, the Navier-Stokes equations (laminar flow) and the continuity equation, counting rules, examples, flow with sudden expansion section
E.: Ansys Meshing, the environment, drawing basic elements, modeling of laminar flow in a rectangular space, graphical evaluation of results
3. L.: Boundary conditions for incompressible flow E.: Create a sudden expansion geometry, methods of networking in case of flow with sudden expansion flow cross-section geometry, boundary conditions
4. L.: Ansys Meshing, generation and control networkE.: Meshing 2D and 3D regions, network control, export to Fluent
5. L.: Fluent programming system, finite volume integration method for the one-dimensional continuity equation and momentum equations, an iterative cycle, the interpolation scheme, convergence (residuals, uderrelax)
E.: Modelling of laminar flow in a rectangular gap
6. L.: Mathematical models of turbulence, Reynolds stresses, time averaging, Reynolds rules, Boussinesq 's hypothesis, turbulent viscosity
E.: Graphical evaluation of results
7. L.: Statistical models of turbulence, two-equation turbulence model, wall functions
E.: Turbulent flow behind the step, turbulent boundary conditions
8. L.: General conservation equations, an example of heat equation + boundary and initial conditions, numerical methods (differential method, finite volume method), geometry and generation of mesh, methods for solving the discretized equations, LGS solver, multigrid
E.: The solution of the flow behind the step using different turbulence models and methods of evaluation
9. L.: Heat transfer, convection, conduction, conditions on the wall, the wall heat transfer
E.: Calculation of non isothermal flow in a pipe with wall heat transfer
10. L.: 3D modeling of species dispersion, comparison of concentrations in 2D and 3D
E.: Example of species dispersion, comparison of concentrations in 2D and 3D
11. L.: The flow with solid particles and drops, the species and their definitions
E.: Distribution of solid particles in the flow of the chimney
12. L.: Modelling the spread of pollution in the open and closed air, a solution of selected tasks, the role of Sutton approach
E.: Solution of individual problem
13. L.: Modelling the spread of fire, i.e. heat and combustion products
E.: Solution of individual problem
14. L.: Consultation of individual seminar problem and discussion
E.: Solution of individual problém

Povinná literatura

INCROPERA, F. a kol. Fundamentals of Heat and Mass Transfer, 6. edition, John Wiley and Sons 2007, 996p., ISBN 978-0-471-45728-2

ANSYS FLUENT INC. FLUENT User’s guide. Available from local Help of ANSYS Fluent

Doporučená literatura

NIKOLAY I. KOLEV. Multiphase flow dynamics. 1, Fundamentals / - 2nd ed. Berlin : Springer, c2005 - xxxv, 753 s. : il. + 1 CD-ROM ISBN 3-540-22106-9