[1]张晓东,张培林,傅建平,等.基于动网格的火炮制退机内部流场数值模拟[J].南京理工大学学报(自然科学版),2010,(04):533-536.
 ZHANG Xiao-dong,ZHANG Pei-lin,FU Jian-ping,et al.Numerical Simulation of Flow Field in Gun Recoil Brake Based on Dynamic Mesh[J].Journal of Nanjing University of Science and Technology,2010,(04):533-536.
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基于动网格的火炮制退机内部流场数值模拟
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
期数:
2010年04期
页码:
533-536
栏目:
出版日期:
2010-08-31

文章信息/Info

Title:
Numerical Simulation of Flow Field in Gun Recoil Brake Based on Dynamic Mesh
作者:
张晓东;张培林;傅建平;王成;
军械工程学院火炮工程系
Author(s):
ZHANG Xiao-dongZHANG Pei-linFU Jian-pingWANG Cheng
Department of Artillery Engineering,Ordnance Engineering College,Shijiazhuang 050003,China
关键词:
制退机 流场 动网格 数值模拟
Keywords:
recoil brakes flow fields dynamic mesh numerical simulation
分类号:
TJ303.4
摘要:
针对火炮制退机流场一维计算模型无法全面、准确反映其内部流场特征的局限,建立了基于动网格的制退机实际结构二维计算模型。利用流体计算软件Fluent,对火炮后坐过程制退机内二维流动进行了数值模拟。采用动态层变方法结合Profile运动边界驱动机制实现网格区域运动,确保模型符合实际运动规律。对比计算压力与实际压力,结果表明该方法具有较高精度,模拟结果显示了制退机内压力、速度分布,并清晰地捕捉到其内部流场的瞬时变化,揭示了典型机构处漩涡的生成、运动、合并与分裂规律。研究结果为进一步完善制退机结构设计提供了理论支持。
Abstract:
Considering the limitation of the traditional one-dimensional model of flow field calculation in a gun recoil brake in reflecting its interior flow characteristics exactly,a two-dimensional model of flow field calculation is proposed based on dynamic mesh.Numerical simulation of flow field in a gun recoil brake is carried out by Fluent software.A dynamic layering method combined with Profile driven mechanism is applied in mesh zone movement.The model can reflect the real structure of a gun recoil brake and its interior flow characteristics.Comparing the calculated pressure with the actual pressure,the results indicate this method has high accuracy.The pressure and velocity distribution in a gun recoil brake and the instantaneous changes of interior flow field are obtained by the numerical simulation.The generation,movement,coalition and cleavage rules of spiral vortex in a typical structure are shown.The results can give theoretical support for the design of gun recoil brake structure.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介: 张晓东( 1977- ), 男, 博士生, 主要研究方向: 火炮维修理论与故障诊断技术, E-mail:ladiiz@sina.com; 通讯作者: 张培林( 1955- ) , 男, 博士, 教授, 博士生导师, 主要研究方向: 武器装备维修理论与技术。
更新日期/Last Update: 2012-11-02