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numerical instability中文是什么意思

  • 数值不稳定性
  • 数字不稳定性

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  • 例句与用法
  • Flexible object simulation systems are mainly based on geometrical , physical and hybrid techniques . since adopting physical technique can not only embody the appearance but also analyze the internal structure of flexible object and obtain satisfying results , so the algorithm proposed here depends on this technique . the bottle - neck in most flexible object simulation systems is that time steps must be small to avoid numerical instability and the huge computation cost
    柔体的仿真方法主要以几何技术、物理技术和混合技术为基础,由于物理技术不仅能反映柔体的外部特征,而且能对其内部结构进行深入的分析,所以在本文进一步研究的过程中,以该技术为主要的研究手段。
  • Based on tree data structure , the cartesian grids about 2 - d and 3 - d configurations are generated using the surface - cutting procedure . in the course of grid generation , a two - step ray - casting algorithm to excluded cells inside the body and a cell - merging technique to avoid numerical instability are fully developed . after creating these surrounding grids , the cell - cutting algorithm is designed to perform geometry - based refinement of grids , and greatly improve the applicability and quality of grid generation
    采用物面切割,基于叉树数据结构,发展了一种普遍适用于二维和三维外形的直角切割网格生成方法;构造两步射线求交算法,删除外形内的固体网格,以及小网格合并算法,确保网格质量和流场计算的稳定性;运用对任意网格的切割细分算法,实现了针对几何外形的自适应网格加密,使得网格生成更具普适性和灵活性。
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Last modified time:Mon, 18 Aug 2025 00:29:56 GMT

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