The aim of the subject is develоping skills for the simulation and analyses of thermalhydraulic transients in complex pipeline networks and components of energy plants.

Students are trained to develop mathematical models of thermalhydraulic transients, to solve these models with analytical and numerical methods and to conduct simulation and analyses with the aim of safety evaluations of energy plants, as a support to the design of control and safety systems and to the defining of operational procedures.

Developing of the lumped parameters models of two-phase gas-liquid systems with phase transitions, one-dimensional compressible flows of one-phase and two-phase fluids, and multidimensional conduction and one-phase and two-phase flows in multidimensional space. Numerical methods for the solving of the system of ordinary differential equations, the method of characteristics for the solving of the system of hyperbolic partial differential equations, and control volume methods for the solving of parabolic and elliptic partial differential equations.

Computer simulations of dynamical pressure changes in steam accumulators and pressurizers applied in the district heating systems and nuclear steam supply systems. Computer simulations of gas pipeline, district heating system and steam generator transients.

Attended courses in Fluid Mechanics, Thermodynamics and Numerical methods within maser or doctoral studies.

Course handouts. Computer equipment. Software for numerical solving of systems of differential equations of various types. Software for simulation and analyses of pressure transients in pipeline networks and pressurized vessels. Software for simulation and analyses of multidimensional two-phase flows.

Total assigned hours: 65

New material: 30
Elaboration and examples (recapitulation): 20

Auditory exercises: 0
Laboratory exercises: 0
Calculation tasks: 0
Seminar paper: 0
Project: 0
Consultations: 0
Discussion/workshop: 0
Research study work: 0

Review and grading of calculation tasks: 0
Review and grading of lab reports: 0
Review and grading of seminar papers: 5
Review and grading of the project: 0
Test: 0
Test: 0
Final exam: 10

Activity during lectures: 30
Test/test: 0
Laboratory practice: 0
Calculation tasks: 0
Seminar paper: 40
Project: 0
Final exam: 30
Requirement for taking the exam (required number of points): 50

Versteeg, H.K., Malalasekera, W., An introduction to Computational Fluid Dynamics, Longman Group Ltd., Harlow, 1995.; Wulff, W., Computational methods for multiphase flow, Multiphase Science and Technology, Vol. 5, Begell House, 1990.; Streeter, V.L., Wylie, E.B., Hydraulic Transients, McGraw Hill, New York, 1967.; C., Anderson, D.A., Pletcher, R.H., Computational Fluid Mechanics and Heat Transfer, Taylor&Francis, New York, 1997.; Stevanovic, V., Thermal-Hydraulics of Steam Generators – Modelling and Numerical Simulation, University of Belgrade, Faculty of Mechanical Engineering, 2006.