Simulation of Thermofluids with Open Source Tools
Course 0000001236 in SS 2017
General Data
| Course Type | practical training |
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| Semester Weekly Hours | 4 SWS |
| Organisational Unit | Associate Professorship of Thermo-Fluid Dynamics (Prof. Polifke) |
| Lecturers | |
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Assignment to Modules
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MW1277: Simulation of Thermofluids with Open Source Tools / Simulation of Thermofluids with Open Source Tools
This module is included in the following catalogs:- Further Modules from Other Disciplines
Further Information
Courses are together with exams the building blocks for modules. Please keep in mind that information on the contents, learning outcomes and, especially examination conditions are given on the module level only – see section "Assignment to Modules" above.
| additional remarks | Nowadays the use of “open source” software is increasing, because it fulfills performance and quality requirements of universities and industry at lower costs than commercial solutions. For Computational (Thermo-)Fluid Dynamics (CFD) very popular open source software package is OpenFOAM®. This package is based on object-oriented programming language, C++, allowing a great flexibility and extensibility of the code that ease its adaptation to a wide range of problems. However, the freedom and the flexibility have a cost: learning the tool is challenging. Consequently, the main objective of the course is to guide the participants towards using and customizing OpenFOAM® with the motto “learning by doing”. The class is divided into 9 sessions/weeks. (1) Introduction to Linux and OpenFOAM®. After a short review of the Linux tools needed to interact with OpenFOAM®, the way to express a CFD problem will be reviewed. Then you will run and post-process your first case. (2) Heat transfer in a plate. The structure of a solver for heat transfer in solid material will be presented. Then this solver will be applied to a 2D planar configuration. (3) Heat transfer in a cooler. The previous solver will be modified to analyze a defective cooler. (4) Channel pipe flow. This case will be the first fluid dynamics problem studied. A laminar flow in a pipe will be simulated. (5) Channel pipe flow locally heated. The elements of the two previous exercises will be combined to create a new solver for a Thermo-Fluids problem at low Reynolds number. (6) RANS solver for turbulent flows. Different models for the turbulence will be applied to a backward step configuration. (7) Combustion. The different approaches to simulate a reacting flow in OpenFOAM® will be introduced. (8) Multiphase flow solver. The volume of fluid method (VOF) will be introduced as a solution to solve two incompressible, isothermal immiscible fluids. As those configurations require lots of resources, the case will be solved in parallel (i.e. using more than 1 processor). In addition the creation of a new boundary conditions will be introduced. (9) Lagrangian solver. The usual way to solve continuous fields (e.g. the pressure or the energy) is to use an Eulerian approach. But for the discrete phases (e.g. a spray of fuel in gas) the Lagrangian approach is more interesting. In this chapter, a Langragian solver of OpenFOAM® will be presented. A new model for the injection of the particles will be implemented and applied to the test case. |
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| Links |
Course documents E-Learning course (e. g. Moodle) TUMonline entry |