### 抄録

The paper presents FDM solutions of the two-dimensional Navier-Stokes equations in a conservative-law form for supersonic flows with no reaction or H_{2}-air combustion. TVD schemes are employed in order to avoid numerical oscillation caused by discontinuities in the flowfield. By using the improved point implicit technique together with the automatic time step switching technique, the strong stiffness inherent to chemically reacting flow problems is successfully overcome. The computational code is applied to three types of geometrical configurations and flow conditions relevant to scramjet engines. The computational results well simulate such quite complicated flowfields including shock waves, expansions, boundary layers, and chemical reactions with high resolution. The present codes are proved to be robust and can be used routinely for analysis and design purposes. In the case of non-reacting, i.e., mixing flows, the numerical results are in good agreement with experimental Schlieren pictures.

元の言語 | 英語 |
---|---|

ホスト出版物のタイトル | Memoirs of the Kyushu University, Faculty of Engineering |

ページ | 433-462 |

ページ数 | 30 |

巻 | 52 |

エディション | 4 |

出版物ステータス | 出版済み - 12 1992 |

### Fingerprint

### All Science Journal Classification (ASJC) codes

- Engineering(all)

### これを引用

*Memoirs of the Kyushu University, Faculty of Engineering*(4 版, 巻 52, pp. 433-462)

**Numerical simulation of supersonic flows with chemical reactions.** / Yamasaki, Nobuhiko; Ueda, Yukifumi; Namba, Masanobu.

研究成果: 著書/レポートタイプへの貢献 › その他の章の貢献

*Memoirs of the Kyushu University, Faculty of Engineering.*4 Edn, 巻. 52, pp. 433-462.

}

TY - CHAP

T1 - Numerical simulation of supersonic flows with chemical reactions

AU - Yamasaki, Nobuhiko

AU - Ueda, Yukifumi

AU - Namba, Masanobu

PY - 1992/12

Y1 - 1992/12

N2 - The paper presents FDM solutions of the two-dimensional Navier-Stokes equations in a conservative-law form for supersonic flows with no reaction or H2-air combustion. TVD schemes are employed in order to avoid numerical oscillation caused by discontinuities in the flowfield. By using the improved point implicit technique together with the automatic time step switching technique, the strong stiffness inherent to chemically reacting flow problems is successfully overcome. The computational code is applied to three types of geometrical configurations and flow conditions relevant to scramjet engines. The computational results well simulate such quite complicated flowfields including shock waves, expansions, boundary layers, and chemical reactions with high resolution. The present codes are proved to be robust and can be used routinely for analysis and design purposes. In the case of non-reacting, i.e., mixing flows, the numerical results are in good agreement with experimental Schlieren pictures.

AB - The paper presents FDM solutions of the two-dimensional Navier-Stokes equations in a conservative-law form for supersonic flows with no reaction or H2-air combustion. TVD schemes are employed in order to avoid numerical oscillation caused by discontinuities in the flowfield. By using the improved point implicit technique together with the automatic time step switching technique, the strong stiffness inherent to chemically reacting flow problems is successfully overcome. The computational code is applied to three types of geometrical configurations and flow conditions relevant to scramjet engines. The computational results well simulate such quite complicated flowfields including shock waves, expansions, boundary layers, and chemical reactions with high resolution. The present codes are proved to be robust and can be used routinely for analysis and design purposes. In the case of non-reacting, i.e., mixing flows, the numerical results are in good agreement with experimental Schlieren pictures.

UR - http://www.scopus.com/inward/record.url?scp=0026990303&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0026990303&partnerID=8YFLogxK

M3 - Other chapter contribution

VL - 52

SP - 433

EP - 462

BT - Memoirs of the Kyushu University, Faculty of Engineering

ER -