### 抄録

This paper describes computational work to understand the unsteady flow-field of a shock wave discharging from an exit of a duct and impinging upon a flat plate. A flat plate is located downstream, and normal to the axis of the duct. The distance between the exit of the duct and flat plate is changed. In the present study, two different duct geometries (i.e., square and cross section) are simulated to investigate the effect of duct geometry on the un-steady flows of a shock wave. In computation, the total variation diminishing (TVD) scheme is employed to solve three-dimensional, unsteady, compressible, Euler equations. Computations are performed over the range of shock Mach number from 1.05 to 1.75. Computational results can predict the three-dimensional dynamic behaviour of the shock wave impinging upon the flat plate. The results obtained show that the pressure increase generated on the plate by the shock impingement depends on the duct geometry and the distance between the duct exit and plate, as well as the shock Mach number. It is also found that for the duct with cross-section, the unsteady loads acting on the flat plate are less, compared with the square duct.

元の言語 | 英語 |
---|---|

ページ（範囲） | 349-354 |

ページ数 | 6 |

ジャーナル | Journal of Thermal Science |

巻 | 15 |

発行部数 | 4 |

DOI | |

出版物ステータス | 出版済み - 12 1 2006 |

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### All Science Journal Classification (ASJC) codes

- Condensed Matter Physics

### これを引用

*Journal of Thermal Science*,

*15*(4), 349-354. https://doi.org/10.1007/s11630-006-0349-3

**Effect of duct geometry on shock wave discharge.** / Kweon, Y. H.; Miyazato, Y.; Aoki, Toshiyuki; Kim, H. D.; Setoguchi, T.

研究成果: ジャーナルへの寄稿 › 記事

*Journal of Thermal Science*, 巻. 15, 番号 4, pp. 349-354. https://doi.org/10.1007/s11630-006-0349-3

}

TY - JOUR

T1 - Effect of duct geometry on shock wave discharge

AU - Kweon, Y. H.

AU - Miyazato, Y.

AU - Aoki, Toshiyuki

AU - Kim, H. D.

AU - Setoguchi, T.

PY - 2006/12/1

Y1 - 2006/12/1

N2 - This paper describes computational work to understand the unsteady flow-field of a shock wave discharging from an exit of a duct and impinging upon a flat plate. A flat plate is located downstream, and normal to the axis of the duct. The distance between the exit of the duct and flat plate is changed. In the present study, two different duct geometries (i.e., square and cross section) are simulated to investigate the effect of duct geometry on the un-steady flows of a shock wave. In computation, the total variation diminishing (TVD) scheme is employed to solve three-dimensional, unsteady, compressible, Euler equations. Computations are performed over the range of shock Mach number from 1.05 to 1.75. Computational results can predict the three-dimensional dynamic behaviour of the shock wave impinging upon the flat plate. The results obtained show that the pressure increase generated on the plate by the shock impingement depends on the duct geometry and the distance between the duct exit and plate, as well as the shock Mach number. It is also found that for the duct with cross-section, the unsteady loads acting on the flat plate are less, compared with the square duct.

AB - This paper describes computational work to understand the unsteady flow-field of a shock wave discharging from an exit of a duct and impinging upon a flat plate. A flat plate is located downstream, and normal to the axis of the duct. The distance between the exit of the duct and flat plate is changed. In the present study, two different duct geometries (i.e., square and cross section) are simulated to investigate the effect of duct geometry on the un-steady flows of a shock wave. In computation, the total variation diminishing (TVD) scheme is employed to solve three-dimensional, unsteady, compressible, Euler equations. Computations are performed over the range of shock Mach number from 1.05 to 1.75. Computational results can predict the three-dimensional dynamic behaviour of the shock wave impinging upon the flat plate. The results obtained show that the pressure increase generated on the plate by the shock impingement depends on the duct geometry and the distance between the duct exit and plate, as well as the shock Mach number. It is also found that for the duct with cross-section, the unsteady loads acting on the flat plate are less, compared with the square duct.

UR - http://www.scopus.com/inward/record.url?scp=35348880340&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=35348880340&partnerID=8YFLogxK

U2 - 10.1007/s11630-006-0349-3

DO - 10.1007/s11630-006-0349-3

M3 - Article

AN - SCOPUS:35348880340

VL - 15

SP - 349

EP - 354

JO - Journal of Thermal Science

JF - Journal of Thermal Science

SN - 1003-2169

IS - 4

ER -