CFDOF
From HP-SEE Wiki
Contents |
General Information
- Application's name : CFD Analysis of Combustion
- Virtual Research Communities : Computational Chemistry Applications
- Scientific contact : Sreten Lekic, slekic@blic.net
- Technical contact : Sreten Lekic, slekic@blic.net
- Developers : Sreten Lekic, Faculty of Mech. Engineering, University of Banja Luka (UoBL), Bosnia - Herzegovina
- Web site :
Application and Short Description
We developed universal burner for gas fuel as a part of economic domestic boiler as a European Union FP6 project for Western Balkan using the computational simulation. We met the unpredictable problems in timing during the iterative steps when we used the nodes on long distance. Data speed transport between the far distanced computers is a limit factor. The main problem is insufficient RAM in preprocessing and processing. Last analyzing show that the parallelization process can be successful on cluster, or grid configurations. Processes are highly scalable, because partitioning divides the computing sub volume with small overlapping. Our aim is to develop more sophisticate simulation model by computational simulation on stronger computer system. We choose open source OpenFOAM CFD software under Linux for further development. We isolated one small segment of burner and by method of finite volumes we formed the grid of about one million cells, and included effects of fluid dynamics and solver module of chemical reactions in combustion processes. Over the temperature, species properties and pressure difference as input parameters, we have got 3-D dynamics of burning, and various temperature, pressure, velocity field, species and pollutions distribution, etc. Segmented pilot program use about 4 Gb RAM and work in parallel processing with eight microprocessor. At the end of project we expect solution with preprocessing grid of about 4 Gb and after adaptation in processing about 40 Gb during the parallel work on 200-400 processors.
Problems Solved
New concept on 64-byte processors and software give the possibility simulation of complete burner, design and building more realistic picture of real device in the future. In preprocessing on 64-bit OpenFOAM software with combusting and chemistry modules, the size of 3-D grid for method of finite volume calculation is over two million cells and over the 3 Gb. Parallel processing with automatic and manual partitioning will occupaid not more than 500 Mb per processor during the main processing
Scientific and Social Impact
We expect a better sight into the real chemical reaction during the combustion process and better control of fluid dynamics parameter in geometry design. We expect that Eddy concept theory with species calculation can explain some nonlinear and acoustic influence in burning dynamics.
The goal is design of flexible burner for gases fuel of low quality and with great efficiency and with small emission of pollutants.
Collaborations and Beneficiaries
Faculties of the University of Banja Luka: Faculty of Mechanical Engineering in Banja Luka, Dept. of Thermotechnic; Faculty of Science. Dept of Physics; Technology Faculty in Banja Luka, Dept. of Chemistry; Electro technical Faculty in Banja Luka, Dept of Computing technology.
Faculties in Bosnia and Herzegovina, as the Faculty of Mechanical Engineering in Sarajevo.
In Balkan countries: Faculty of Mechanical engineering, Dept. for fluid dynamics in Belgrade; Institute Vinca in Belgrade
Technical features and HP-SEE implementation
- Primary programming language : OpenFOAM, c
- Parallel programming paradigm : Partitioning method, Métis, …
- Main parallel code : Software supported
- Pre/post processing code : In-house development
- Full-scale number of logical CPUs : 128-256'
- Minimum RAM/core required : 4-8GB
- Storage space during a single run : 10 GB
- Long-term data storage : 20GB
Usage Example
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Publications and Presentations
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