Speakers
Description
Conclusions and Future Work
The resources of RDIG RFUSION VO were used for application porting. The application of the Grid technology in fusion research for different physical tasks enabled the increase of the total number of computational variants which was previously impossible. As a next step we plan to connect application codes with experimental data bases. The results of this activity can be mainly used by tokamak engineers and fusion physicists thus reducing their manual work.
Detailed analysis
All these tasks require a great number of independent calculations. To calculate a suboptimal set of tokamak magnetic system configurations we used the code «TOKAMEQ» and a genetic algorithm for optimization.
To identify the structure of carbon nanotubes (CNT) arrays in the film deposits, we compute the diffraction angular distribution. It demands massive computations for reconstructing major parameters of CNT arrays. The computation exploits the formalism which represents CNT as a set of regular carbon helices. Statistical analysis of computation results enabled us to formulate an algorithm which was applied to interpreting the x-ray diffraction data for the films deposited in the vacuum vessel of tokamak T-10.
To simulate the edge plasma turbulence behavior in tokamak, we used the Hasegava-Wakatani two-dimensional model which was added by phenomenological terms and conditions. Massive calculations were for accumulation of statistics, and results were compared to experimental data.
Impact
The Grid makes possible to increase a number of considered variants and a search areas. The main added value is that the Grid enables the full automation of the process of finding a suboptimal variants set.
Keywords
Tokamak, plasma, nuclear fusion, turbulence, nanotechnology
URL for further information
http://vo.nfi.kiae.ru
