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Material irradiation damage spatial resolution random cluster dynamics parallel simulation method

A technology of spatial resolution and radiation damage, applied in 3D modeling, image data processing, special data processing applications, etc., can solve problems such as low parallel efficiency and inability to perform large-scale parallel simulation, and achieve high parallel efficiency

Active Publication Date: 2020-09-22
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method for parallel simulation of material radiation damage space-resolved random cluster dynamics to solve the problem of low parallel efficiency and inability to perform large-scale parallel simulation in the prior art

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  • Material irradiation damage spatial resolution random cluster dynamics parallel simulation method
  • Material irradiation damage spatial resolution random cluster dynamics parallel simulation method
  • Material irradiation damage spatial resolution random cluster dynamics parallel simulation method

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Embodiment Construction

[0064] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0065] Aiming at the problem that the existing parallelism is low in efficiency and unable to perform large-scale parallel simulation, the present invention provides a parallel simulation method for material radiation damage space resolution random cluster dynamics.

[0066] In order to better understand the parallel simulation method of material radiation damage spatially resolved random cluster dynamics described in the embodiment of the present invention, some terms are explained as follows:

[0067] 1. For each type of reaction, the defects participating in the reaction are called reactants, and the defects produced by the reaction are called products. The reactions between defects mainly include five categories:

[0068] (1) Implantation: Indicates ...

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Abstract

The invention provides a material irradiation damage spatial resolution random cluster dynamics parallel simulation method, which can realize large-scale SRSCD simulation. The method comprises the following steps: allocating simulation volumes of spatially resolved random cluster dynamics to different processes, establishing a three-dimensional Cartesian topological structure of the processes, anddividing a region of the processes into a plurality of sectors; determining a communication data structure; traversing each sector in sequence according to a sector number sequence; calculating a time threshold of circulation in each sector, and entering internal circulation; and randomly selecting a reaction in the current sector, updating the defect according to the selected reaction, filling the communication data list and updating the related reaction, communicating with the neighbor process when the evolution time of the internal loop is greater than the time threshold of the internal loop, synchronizing the corresponding defect information and updating the related reaction. The invention relates to the technical field of nuclear material irradiation damage simulation and the field of parallel computing.

Description

technical field [0001] The invention relates to the technical field of nuclear material radiation damage simulation and the field of parallel computing, in particular to a method for parallel simulation of random cluster dynamics with spatial resolution of material radiation damage. Background technique [0002] The service performance of structural materials in nuclear reactors mainly depends on the dynamic behavior of defects generated by irradiation, such as defect diffusion, nucleation, growth, annihilation, etc. These long-term evolution behaviors will cause changes in defect size and density distribution. Changes, resulting in degradation of mechanical properties of structural materials, such as radiation hardening / brittleness, radiation swelling, etc. Since these long-term evolution behaviors often exceed the capabilities of micro-scale simulation methods such as Molecular Dynamics (MD) and atomic kinetic Monte Carlo (AKMC), it is usually necessary to use mesoscale S...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06T17/00
CPCG06F30/20G06T17/00
Inventor 陈丹丹胡长军杨文贺新福储根深任帅白鹤王珏
Owner UNIV OF SCI & TECH BEIJING
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