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Numerical heat transfer simulation
Module description:
valid for matrciulations after 2012
Lecturer: Prof. Dr.-Ing. Robert Pietzsch
Qualification aim:
- The students should be able to calculate independently temperature fields in simple technical structures
- They should know the terms and physical quantities of the theory of heat transfer and they should be able to apply them
- The thermal module of the ANSYS program to be safely used
- One important competence is to select the right finite element type for a given application and to understand the different properties and degree of shape function
- During the exam (120min) the students should demonstrate their skills to solve two heat transfer problems using ANSYS
- Laws and terms of heat transfer, balance equation of internal energy
- Manual calculation of temperature fields and simple heat transfer problems
- Fundamentals of the Finite Elements Method, elements formulation, shape functions, time integration methods, Introduction in ANSYS environment
- Simple cooling behaviour of a compact body
- Steady heat conduction in a linear rod
- Transient heat conduction in a cooled slab
- Thermal contact of two linear slabs at the face side (contact temperature)
- Transient heat exchange and temperature equalization in a plane structure
- Steady heat conduction and heat transfer capacity of a flat fin
- Thermomechanical coupling of structural and thermal calculation- thermal strains and stresses, thermal distortion
- Axissymmetric problems, solved in a cross section
- Heat conduction in volumetric bodies
- Radiation heat transfer as boundary condition
- Time-dependent thermal boundary conditions
Teaching methods: computer exercise with partial lecture character (4SWS)
Necessary knowledges:
- fundamentals of thermodynamics
- heat transfer
Usability: Renewable Resources Engineering (B.Eng.)
preparing exam: individually solved exercises
Grading practical examination at the computer (120min)
credits: 5 ECTS- Credits
frequency: annually in the winter semester
workload: 150 hours ( present time: 60h + self study 90h)
duration of one unit: 90 min
supporting documents: scriptum with solved and explained examples
Literature
- ANSYS theory manual
- Elements documentation
