Calculation method of unsteady flow field based on preconditioning method

Dong Xia Li; Xu Xu; Bing Chen; Guo Biao Cai; Zhen Peng Zhang

Calculation method of unsteady flow field based on preconditioning method

Dong Xia Li^*
, Xu Xu
, Bing Chen
, Guo Biao Cai
, Zhen Peng Zhang

^*Corresponding author for this work

School of Astronautics

Beihang University

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

The accuracy and convergence characteristics of N-S or Euler equations used for calculating low Mach number flow field were improved by using preconditioning method. Time precision of calculation results of unsteady flow field was ensured by using combined method of dual-time step and preconditioning. Control equation in which virtual time derivatives used LU implicit time scheme and convection flux used AUSM + and MUSCL scheme was solved at every physical time step. Through calculation of forward-facing step flow and circular cylinder, the algorithm was proven to be of wide applicability and reliability.

Original language	English
Pages (from-to)	169-173
Number of pages	5
Journal	Guti Huojian Jishu/Journal of Solid Rocket Technology
Volume	29
Issue number	3
State	Published - Jun 2006

Keywords

Dual-time step
Preconditioning
Unsteady flow

Cite this

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title = "Calculation method of unsteady flow field based on preconditioning method",

abstract = "The accuracy and convergence characteristics of N-S or Euler equations used for calculating low Mach number flow field were improved by using preconditioning method. Time precision of calculation results of unsteady flow field was ensured by using combined method of dual-time step and preconditioning. Control equation in which virtual time derivatives used LU implicit time scheme and convection flux used AUSM + and MUSCL scheme was solved at every physical time step. Through calculation of forward-facing step flow and circular cylinder, the algorithm was proven to be of wide applicability and reliability.",

keywords = "Dual-time step, Preconditioning, Unsteady flow",

author = "Li, \{Dong Xia\} and Xu Xu and Bing Chen and Cai, \{Guo Biao\} and Zhang, \{Zhen Peng\}",

year = "2006",

month = jun,

language = "英语",

volume = "29",

pages = "169--173",

journal = "Guti Huojian Jishu/Journal of Solid Rocket Technology",

issn = "1006-2793",

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TY - JOUR

T1 - Calculation method of unsteady flow field based on preconditioning method

AU - Li, Dong Xia

AU - Xu, Xu

AU - Chen, Bing

AU - Cai, Guo Biao

AU - Zhang, Zhen Peng

PY - 2006/6

Y1 - 2006/6

N2 - The accuracy and convergence characteristics of N-S or Euler equations used for calculating low Mach number flow field were improved by using preconditioning method. Time precision of calculation results of unsteady flow field was ensured by using combined method of dual-time step and preconditioning. Control equation in which virtual time derivatives used LU implicit time scheme and convection flux used AUSM + and MUSCL scheme was solved at every physical time step. Through calculation of forward-facing step flow and circular cylinder, the algorithm was proven to be of wide applicability and reliability.

AB - The accuracy and convergence characteristics of N-S or Euler equations used for calculating low Mach number flow field were improved by using preconditioning method. Time precision of calculation results of unsteady flow field was ensured by using combined method of dual-time step and preconditioning. Control equation in which virtual time derivatives used LU implicit time scheme and convection flux used AUSM + and MUSCL scheme was solved at every physical time step. Through calculation of forward-facing step flow and circular cylinder, the algorithm was proven to be of wide applicability and reliability.

KW - Dual-time step

KW - Preconditioning

KW - Unsteady flow

UR - https://www.scopus.com/pages/publications/33748186597

M3 - 文章

AN - SCOPUS:33748186597

SN - 1006-2793

VL - 29

SP - 169

EP - 173

JO - Guti Huojian Jishu/Journal of Solid Rocket Technology

JF - Guti Huojian Jishu/Journal of Solid Rocket Technology

IS - 3

ER -

Calculation method of unsteady flow field based on preconditioning method

Abstract

Keywords

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