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Modeling of Fluid Flow by Finite Volume Method

Type of study Doctoral
Language of instruction English
Code 338-0953/02
Abbreviation MPTMKO
Course title Modeling of Fluid Flow by Finite Volume Method
Credits 10
Coordinating department Department of Hydromechanics and Hydraulic Equipment
Course coordinator doc. Ing. Marian Bojko, Ph.D.

Osnova předmětu

• Turbulence. The physical significance of turbulence, random nature of turbulence, statistical approaches, mathematical models of laminar and turbulent flow, incompressible and compressible media.

• Numerical solution of flow. Numerical solution of the Navier - Stokes equation and continuity equation methods, the basic differential, integral method, finite volume, finite element method, spectral method.

• The principle of finite volumes. Solving discretized equations. SIMPLE algorithm, SIMPLEC, multigridní methods, the accuracy of difference schemes.

• Wall functions. The importance of wall functions for velocity and temperature profiles in modeling the near wall, dimensionless parameter criterion for y +, use of wall functions.

• Boundary conditions. Definition of basic flow variables at the border area, as well as turbulent variables, Time-dependent boundary conditions.

• Methods of solving turbulent flow. Direct simulation (DNS) method, simulations of large eddies (LES, DES), time-averaging method (standard k-eps model, RNG k-eps model (renormalization group method), k-omega model, the RSM model (Reynolds stress model).

• Preprocessors ANSYS DesignModeler a ANSYS Meshing . Use preprocessor ANSYS DesignModeler to creation of geometry, mesh generation in preprocessor ANSYS Meshing , transfer the geometry from CAD systems into ANSYS DesignModeler, treatment of transferred data, mesh generation, mesh quality control and export to FLUENT.

• The software FLUENT. Using FLUENT for numerical solution. Grid adaptation during the simulation. Modification of numerical parameters such as residual limitations, relaxation parameters, multigrid.

• Applications. The theoretical findings are used to wrap solution obstacles, lift forces, natural convection, the flow of gaseous species and solid particles (aerosols), the wall heat transfer, etc.

Povinná literatura

INCROPERA, F., P. ET AL.. Fundamentals of heat and mass transfer. 6th ed.. Hoboken : Wiley, c2007 – xxv. 997 s. ISBN 0-471-45728-0 .

ANSYS Fluent Theory Guide (Release 18.2). 2017.

ANSYS Fluent User’s Guide (Release 18.2). 2017.

Doporučená literatura

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.

ANSYS Fluent Tutorial Guide (Release 18.2). 2017.