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Calculation simulator based on dynamic grid division

A dynamic grid and simulator technology, applied in computing, computer-aided design, instruments, etc., can solve problems such as inability to export data, high market price of LLG Micromagnetics Simulator, and the need to improve computational stability and computational accuracy.

Inactive Publication Date: 2019-08-09
钟澎洪
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  • Abstract
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Problems solved by technology

[0003] However, the market price of LLG Micromagnetics Simulator is relatively high, which is not conducive to general promotion and use in China.
In addition, LLG Micromagnetics Simulator has great limitations in simulating micromagnetic problems. For example, the design of the software restricts calculations to some commonly used micromagnetic problems, and the calculation speed is average.
[0004] OOMMF, as a free and open source software, also has shortcomings. For example, the post-data processing function is not very powerful, and additional data processing tools (such as MATLAB, Origin, Excel, etc.) are needed to obtain the result pictures that you want to use for speeches or publications. Export the desired data as well as graphs and curves through program commands
[0005] Both LLG Micromagnetics Simulator and OOMMF need to be improved in calculation stability and calculation accuracy

Method used

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  • Calculation simulator based on dynamic grid division

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Embodiment Construction

[0011] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific embodiments described here are only used to explain the present invention, and do not limit the protection scope of the present invention.

[0012] It should be noted that, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terminology used herein in the description of the present invention is only for the purpose of describing specific embodiments, and is not intended to limit the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0013] Such as figure 1 As shown in th...

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Abstract

The invention relates to a calculation simulator based on dynamic grid division. The calculation simulator comprises an information acquisition module, a data conversion module, a judgment module, a dynamic grid division module, a first calling module and a second calling module. When a calculation simulator based on dynamic grid division is used, a hysteresis loop, a magnetic moment evolution process, a magnetic domain structure and the like of materials in any shape can be simulated and graphed. By setting different shapes, different parameters, different initial magnetization states and external conditions, the magnetization structure of a certain moment or a certain point which wants to be researched can be obtained; the method is characterized in that the calculation grid distributioncan not be automatically adjusted by the software, the calculation grid distribution can not be automatically adjusted by the OOMMF and the LLG Micrographs Simulator, and the software is provided with a dynamic grid division module, so that the stability of the calculation can be controlled while the calculation reaches the calculation precision required by the calculation.

Description

technical field [0001] The invention relates to the technical field of magnetic material simulation design, in particular to a calculation simulator based on dynamic grid division. Background technique [0002] In the research and development of high-performance materials in material science, it is often necessary to study the movement of the material's magnetic moment. Micromagnetic simulation is a very effective method, and the results obtained are in good agreement with actual materials. , has great guiding significance and reference value for solving practical scientific problems. The most common micromagnetic simulation tools are OOMMF (Object Oriented Micromagnetic Framework), LLG Micromagnetics Simulator, etc. OOMMF is currently one of the most widely used micromagnetic simulation tools. It is developed by NIST (National Institute of Standards and Technology) and compiled by C++ and Tcl (Tk) languages. It is applicable to Windows / Unix / Linux / Mac, etc. OOMMF, an ope...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 钟澎洪
Owner 钟澎洪
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