Study on Numerical Simulation of Flow around Body by MPS using Cluster System

基于集群系统的MPS绕体流数值模拟研究

基本信息

项目摘要

An existing two-dimensional particle method program was originally changed to the three-dimensional particle method code by this research, and an excellent result was obtained about the following three-dimensional flow compared with the experiment result and other numerical calculation results.The fluid phenomenon that was able to adjust to the particle method could be judged by showing a variety of numerical calculation results of this research.(1)Flow analysis around 3-dimensional plate that moved suddenlyA transitional fluid phenomenon was simulated by this method.As a result, it was clear that rapid phenomenon can be calculated by MPS.(2)Spray phenomenon when surface of the water collides by falling objectA triangular pillar was dropped, and the spray phenomenon momentarily generated when colliding with the surface of the water was simulated.As a result, the agreement with high accuracy could be seen compared with the experimental photograph with a high-speed camera.(3)Movement after surface of the water collides of falling objectThe hexahedron was diagonally discharged, and the fall to the surface of the water and the movement afterwards were simulated.As a result, a qualitative agreement was seen compared with the experiment result with the object with shape that looked like the hexahedron.(4)Three-dimensional rotational wings with simple shapeA basic calculation of the three-dimensional rotation wing was executed by using the hexahedron for the wing of the rotational wing.Physical validity could be obtained by changing to the shape with pitch from original shape without pitch although it was difficult to model the rotational wings with the pitch in the particle method.
本研究将现有的二维粒子法程序改造为三维粒子法程序,并对后续的三维流动与实验结果及其他数值计算结果进行了比较,得到了非常好的结果,通过显示本研究的各种数值计算结果,可以判断出能够适应粒子法的流体现象。(1)三维平板突然运动时的绕流分析用该方法模拟了一个过渡流现象,结果表明MPS可以计算出快速流动现象。(2)落物撞击水面时的喷雾现象通过投下三角柱,模拟了落物撞击水面时瞬间产生的喷雾现象,与高速摄影机拍摄的实验照片进行了比较,结果显示了高精度的一致性。(3)落物撞击水面后的运动对六面体进行斜向泄流,模拟落物撞击水面后的运动,并与六面体形状物体的实验结果进行了定性的比较。(4)简单形状的三维旋转翼对旋转翼的翼面采用六面体进行了三维旋转翼的基本计算,虽然用质点法很难模拟有俯仰角的旋转翼,但通过将原来的无俯仰角的形状变为有俯仰角的形状,可以得到物理上的有效性。

项目成果

期刊论文数量(4)
专著数量(0)
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会议论文数量(0)
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三次元流体解析に於ける粒子法の適用性に関する研究
粒子法在三维流体分析中的适用性研究
Research on applicability of particle method in three-dimensional flow body analysis
粒子法在三维流体分析中的适用性研究
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KAI Hisashi其他文献

KAI Hisashi的其他文献

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{{ truncateString('KAI Hisashi', 18)}}的其他基金

Key Molecule of Aggravation of Hypertensive Organ Damage by Large Blood Pressure Variability
血压波动大加重高血压脏器损伤的关键分子
  • 批准号:
    24591104
  • 财政年份:
    2012
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Analysis of the Crosstalk between Myocardium and Vasculature:Mechanism of Prevention of Hypertension by Intervention in Prehypertensive Stage
心肌与脉管系统的串扰分析:高血压前期干预预防高血压的机制
  • 批准号:
    21590943
  • 财政年份:
    2009
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Gender differences in the mechanism of hypertensive organ damage in the heart
高血压心脏器官损害机制的性别差异
  • 批准号:
    19590839
  • 财政年份:
    2007
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Roles of inflammation in hypertensive organ damages
炎症在高血压器官损伤中的作用
  • 批准号:
    17590768
  • 财政年份:
    2005
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
EFFECTS OF EXAGGERATED BLOOD PRESSURE VARIABILITY ON CARDIAC REMODELING AND PERIVASCULAR INFLAMMATION
夸大的血压变异性对心脏重构和血管周围炎症的影响
  • 批准号:
    15590780
  • 财政年份:
    2003
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
A Study on Wake Geometry behind Marine Proellers
船用螺旋桨尾流几何结构研究
  • 批准号:
    13650966
  • 财政年份:
    2001
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
NEW TREATMENT FOR DIASTOLIC DYSFUNCTION BY PREVENTING CARDIAC FIBROSIS -GENE THERAPY USING A MUTANT TGF-β, RECEPTOR-
通过预防心脏纤维化来治疗舒张功能障碍的新方法 - 使用突变型 TGF-β 受体的基因疗法 -
  • 批准号:
    13670767
  • 财政年份:
    2001
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Prevention of Cardiac9 Remodeling and Diastolic Dysfunction by inhibiting Fibrotic Process.
通过抑制纤维化过程预防心脏重塑和舒张功能障碍。
  • 批准号:
    12670711
  • 财政年份:
    2000
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
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