| DCD格式在气固两相流计算中的应用 |
| |
| 引用本文： | 贠来峰,芮筱亭,陈涛. DCD格式在气固两相流计算中的应用[J]. 弹道学报, 2009, 21(2) |
| |
| 作者姓名： | 贠来峰 芮筱亭 陈涛 |
| |
| 作者单位： | 1. 南京理工大学,动力工程学院,南京,210094;总装备部南京军事代表局,南京,210024
2. 南京理工大学,动力工程学院,南京,210094 |
| |
| 摘 要： | 为将DCD格式推广到两相流动力学计算,通过对气固两相流动力学方程的适当变形,并处理为向量形式,实现了用DCD格式对气相和固相的统一计算,无须数值粘性和人工滤波.分别用DCD格式、Mac Cormack格式、TVD格式对密闭容器内的一维非定常气固两相流动进行了计算.计算结果表明,DCD格式计算精度高,使用方便.DCD格式能用于两相流动力学仿真,是一种很好的激波捕捉格式.
|
| 关 键 词： | 气固两相流 差分格式 DCD格式 流体力学 内弹道学 |
Application of DCD Scheme in Computation of Gas-Solids Two-phase Flow |
| |
| YUN Lai-feng,RUI Xiao-ting,CHEN Tao. Application of DCD Scheme in Computation of Gas-Solids Two-phase Flow[J]. Journal of Ballistics, 2009, 21(2) |
| |
| Authors: | YUN Lai-feng RUI Xiao-ting CHEN Tao |
| |
| Affiliation: | YUN Lai-feng1,2,RUI Xiao-ting1,CHEN Tao1(1.School of Power Engineering,NUST,Nanjing 210094,China,2.Military Representative Bureau in Nanjing,General Armament Department of PLA,Nanjng 210024,China) |
| |
| Abstract: | In order to extend DCD scheme to dynamics simulation of gas-solids two-phase flow,the dynamic function of gas-solids two-phase flow was rewritten in new mode and was derived into vector form,therefore the motion of gas and solids can be computed uniformly with DCD scheme.This computation needs no artificial filtering and numerical viscous.One-dimension unsteady flow of gas and solids in a closed vessel was simulated with Mac Cormack scheme,TVD scheme and DCD scheme respectively.Numerical results show that D... |
| |
| Keywords: | gas-solids two-phase flow difference scheme DCD scheme fluid mechanics interior ballistics |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
