Uniform Discretization of 2-Dimensional Complex Geometrical Area for Meshless Particle Method

doi:10.7652/xjtuxb201311021

您当前的位置：

首页 >

文章列表页 >

Uniform Discretization of 2-Dimensional Complex Geometrical Area for Meshless Particle Method

更新时间：2025-07-09

- Uniform Discretization of 2-Dimensional Complex Geometrical Area for Meshless Particle Method
- Vol. 47, Issue 11, Pages: 120-126(2013)
- 作者机构：
  
  西安交通大学能源与动力工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201311021
  CLC： O351.2
- Online First：10 November 2013，
  
  Published：2013
- 稿件说明：
移动端阅览
Uniform Discretization of 2-Dimensional Complex Geometrical Area for Meshless Particle Method[J]. 2013, 47(11): 120-126.
DOI：

Uniform Discretization of 2-Dimensional Complex Geometrical Area for Meshless Particle Method[J]. 2013, 47(11): 120-126. DOI： 10.7652/xjtuxb201311021.

摘要

在二维情况下

针对配点型无网格粒子法中复杂边界区域的离散困难问题进行了系统的研究

提出了一套高精度均布离散方法。采用将二维问题降阶为一维问题的思路

先对边界进行离散并对内部进行填充

再利用粒子的不可压缩模型和自适应性质对预离散结果进行调整

以实现均匀离散。分别对直线元素和曲线元素几何图形的离散过程进行分类研究

给出了翼型等复杂曲边区域的粒子布置。结合算例对角点附近粒子间距过近的问题进行分析

并给出了一种解决方案。结果分析表明

该方法在精确表达复杂形状的基础上实现了粒子均匀离散

大幅提高了布置效率和工程应用价值

为解决三维复杂问题提供了研究基础。

Abstract

A uniform distributed discretization method with high-precision was proposed to solve the discretization problem of 2-dimensional complex geometrical area for particle collocation methods. With dimensionality reduction

the boundary region is discretized and the inner part is filled first

and the incompressible model as well as self-adaptivity is employed to unify the discretization. Moreover

the discretization process of geometrical shapes concerning straight lines and curved lines were analyzed

respectively

and the particle distribution in the complex curved region like airfoil was presented. A solution was proposed to the crowded problem of particles near the angular point. The results show that the uniform distributed discretization method can not only reflect the curved shape accurately but also meet the requirement of distribution uniformity

enhancing the arrangement efficiency and value of engineering application.

关键词

Keywords

references

NOMURA K, KOSHIZUKA S, OKA Y, et al. Numerical analysis of droplet breakup behavior using particle method [J]. Journal of Nuclear Science and Technology, 2001, 38(12): 1057-1064.

XIE Heng, KOSHIZUKA S, OKA Y. Modelling of a single drop impact onto liquid film using particle method [J]. International Journal for Numerical Methods in Fluids, 2004, 45(9): 1009-1023.

XIE Heng, KOSHIZUKA S, OKA Y. Numerical simulation of liquid drop deposition in annular-mist flow regime of boiling water reactor [J]. Journal of Nuclear Science and Technology, 2004, 41(5): 569-578.

SHIBATA K, KOSHIZUKA S. Numerical analysis of shipping water impact on a deck using a particle method [J]. Ocean Engineering, 2007, 34(3/4): 585-593.

孙凯. 基于SPH方法对自由表面流的数值模拟及可视化研究 [D]. 郑州: 郑州大学, 2007.

SUN Zhongguo, XI Guang, CHEN Xi. A numerical study of stir mixing of liquids with particle method [J]. Chemical Engineering Science, 2009, 64(2): 341-350.

SUN Zhongguo, LIANG Yangyang, XI Guang. Numerical simulation of the flow in straight blade agitator with the MPS method [J]. International Journal for Numerical Methods in Fluids, 2011, 67(12): 1960-1972.

潘徐杰. 基于大涡模拟的移动粒子半隐式法研究及其应用 [D]. 上海: 上海交通大学, 2009.

孙中国, 席光. 搅拌器内部流动的无网格法三维数值模拟 [J]. 工程热物理学报, 2010, 31(12): 2027-2030.

SUN Zhongguo, XI Guang. Numerical simulation of the three-dimensional flow in an agitator with meshless method [J]. Journal of Engineering Thermophysics, 2010, 31(12): 2027-2030.

KOSHIZUKA S, OKA Y. Moving-particle semi-implicit method for fragmentation of incompressible fluid [J]. Nuclear Science and Engineering, 1996, 123(3): 421-434.

康宝生, 刘蓉, 段福庆. 基于圆弧样条构造NURBS曲线的等距线 [J]. 西北大学学报: 自然科学版, 1999, 29(4): 296-300.

KANG Baosheng, LIU Rong, DUAN Fuqing. Constructing offsets of NURBS curves via circular spline [J]. Journal of Northwest University: Natural Science Edition, 1999, 29(4): 296-300.

张伟红, 檀结庆. 平面Bézier曲线的等距曲线有理逼近新方法 [J]. 合肥工业大学学报: 自然科学版, 2007, 30(5): 627-629.

ZHANG Weihong, TAN Jieqing. A new method of rational approximation of the offset curves of planar Bézier curves [J]. Journal of Hefei University of Technology: Natural Science Edition, 2007, 30(5): 627-629.

尚文. 用包络法求等距曲线的方程 [J]. 淮南矿业学院学报, 1996, 16(1): 57-60.

SHANG Wen. The deduction of equidistant curve equation by using envelope [J]. Journal of Huainan Mining Institute, 1996, 16(1): 57-60.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Velocity Boundary Models of Inlet Flow Using Moving Particle Semi-Implicit Method

Meshless Numerical Study of Transient Closing Process in Ball Valves and Associated Water Hammer Phenomenon

Numerical Study of Transient Cosing Process of Ball Valve and Water Hammer Phenomenon by Meshless Method

Fully Lagrangian Numerical Method for the Behavior of Droplet Impact on Elastic Cantilever Beams

Optimization Study on Computational Efficiency of Moving Particle Semi-Implicit Method

Related Author

席光

梁杨杨

陈啸

孙中国

XI Guang

SUN Zhongguo

ZHOU Ziqi

SUN Yijie

Related Institution

School of Energy and Power Engineer, Xi'an Jiaotong University

School of Energy and Power Engineer, Xi’an Jiaotong University

(School of Energy and Power Engineering, Xi'an Jiaotong University,,)

⁰