Course detail
Advanced Thermofluid Simulations
FSI-IMT Acad. year: 2023/2024 Winter semester
Theoretical part:
- Turbulence modeling. Time-averaged flow. Turbulent diffusion (viscosity and thermal conductivity), models for its determination. Advanced turbulent modeling.
- Multiphase flow
- Moving reference frame
- Modeling of thermal and solar radiation.
- Macros and automatisation of Star-CCM+ workflow.
Practical part:
Solution of complex fluid flow & heat transfer problems using the Star-CCM+ solver (3-D problems, thermal & solar radiation, Multiphase flow).
Language of instruction
Czech
Number of ECTS credits
4
Supervisor
Department
Entry knowledge
Theoretical basis of heat transfer, thermo mechanics and fluid mechanics. Fundamentals of computational modelling of fluid flow and heat transfer (discretization methods, transient solution, convective-diffusion problems, algorithms).
Rules for evaluation and completion of the course
The graded course-unit credit awarding is based on the results of the semester project.
Attendance at seminars is required. Absence from seminars can be compensated for via make-up project.
Aims
The course objective is to extend theoretical and practical knowledge and computational modelling of fluid flow and heat transfer expertise with regard to their potential use in the diploma thesis.
Theoretical basis of computational modelling of complex problems of fluid flow and heat transfer (turbulence models, two-phase flow, radiation). Extension of CFD code Star-CCM+ expertise.
The study programmes with the given course
Programme N-ETI-P: Power and Thermo-fluid Engineering, Master's
specialization TEP: Environmental Engineering, compulsory
Type of course unit
Lecture
26 hours, optionally
Teacher / Lecturer
Syllabus
1. CFD – Good practise guide
2. Numerical simulation of turbulent flow. Basics.
3. Reynolds Averaging of Navier-Stokes equations.
4. Turbulent viscosity models. Boussinesq approximation.
5. Algebraic models of turbulence. One- and Two-equation models.
6. Boundary conditions for turbulent flows. Turbulent boundary layer
7. Reynolds-Stress models. Large Eddy Simulation (LES).
8. Multiphase flow.
9. Methods of modelling multiphase flow (Euler/Lagrange approach).
10. Moving reference frames
11. Thermal radiation.
12. Modelling of solar loads.
13. Automation of workflow with Star-CCM+ solver.
Computer-assisted exercise
13 hours, compulsory
Teacher / Lecturer
Syllabus
1. CFD – Good practise guide – Grid independency test.
2. Numerical simulation of turbulent flow – Airflow in constricted tube, comparison with experimental results.
3. Multiphase flow (Lagrangian approach) – Transport and deposition of aerosols inside respiratory tract.
4. Multiphase flow (Eulerian approach) – Simulation of water surface using VOF method.
5. Moving reference frames – Airflow inside fan.
6. Thermal radiation – HVAC inside car cabin.
7. Automation of workflow with Star-CCM+ solver – Definition of boundary condition using user field function.