نتایج جستجو برای: شبکه grid
تعداد نتایج: 119917 فیلتر نتایج به سال:
Abstract: In this paper, by using diagonal fourth order central difference method and TLNS equations, the numerical solution of the steady viscous supersonic axisymmetric flow is implemented over blunt cone with shock-fitting method. Because of using high order terms of Taylor series in discretization of derivation, this method has high accuracy and low numerical error (dispersion error) with r...
Microgrid and smart electrical grids are among the new concepts in power systems that support new technologies within themselves. Electric cars are some advanced technologies that their optimized use can increase grid efficiency. The modern electric cars sometimes, through the necessary infrastructure and proper management, can serve as an energy source to supply grid loads. This study was cond...
Evaluation of the reliability parameters in micro-grids based on renewable energy sources is one of the main problems that are investigated in this paper. Renewable energy sources such as solar and wind energy, battery as an energy storage system and fuel cell as a backup system are used to provide power to the electrical loads of the micro-grid. Loads in the micro-grid consist of interruptible...
Abstract Two-level Schwarz domain decomposition methods are very powerful techniques for the efficient numerical solution of partial differential equations (PDEs). A two-level method requires two main components: a one-level preconditioner (or its corresponding smoothing iterative method), which is based on techniques, and coarse correction step, relies space. The space must properly represent ...
Reservoir models with many grid blocks suffer from long run time; it is hence important to deliberate a method to remedy this drawback. Usual upscaling methods are proved to fail to reproduce fine grid model behaviors in coarse grid models in well proximity. This is attributed to rapid pressure changes in the near-well region. Standard permeability upscaling methods are limited to systems with ...
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