### Abstract

The flow normal to an infinite thin elliptic cylinder which is uniformly accelerated from rest in a direction perpendicular to its generating lines in a viscous fluid is considered. The Dufort-Frankel method for the vorticity transport equation is used for the numerical simulation of viscous incompressible flows, and a new finite Fourier transform method is introduced in order to handle the stream function equation for accurate and efficient calculation. A major part of the present paper is devoted to physical properties of the flow for the early stages of development of the wake behind the obstacle for Reynolds number 98. 11. The rest of this paper demonstrates the important unsteady forces such as time-dependent drag, lift and moment acting on the body immersed in a viscous fluid, and presents specific numerical results for various transition.

Original language | English |
---|---|

Pages (from-to) | 1197-1206 |

Number of pages | 10 |

Journal | Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B |

Volume | 52 |

Issue number | 475 |

Publication status | Published - 1986 Mar |

Externally published | Yes |

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### ASJC Scopus subject areas

- Mechanical Engineering

### Cite this

*Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B*,

*52*(475), 1197-1206.

**UNSTEADY FORCES ON A BODY IMMERSED IN A VISCOUS FLUID (3rd REPORT, FOR AN INCLINED THIN ELLIPTIC CYLINDER).** / Tanahashi, Takahiko; Sawada, Tatsuo; Kanai, Eriya; Chino, Akira; Ando, Tsuneyo.

Research output: Contribution to journal › Article

*Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B*, vol. 52, no. 475, pp. 1197-1206.

}

TY - JOUR

T1 - UNSTEADY FORCES ON A BODY IMMERSED IN A VISCOUS FLUID (3rd REPORT, FOR AN INCLINED THIN ELLIPTIC CYLINDER).

AU - Tanahashi, Takahiko

AU - Sawada, Tatsuo

AU - Kanai, Eriya

AU - Chino, Akira

AU - Ando, Tsuneyo

PY - 1986/3

Y1 - 1986/3

N2 - The flow normal to an infinite thin elliptic cylinder which is uniformly accelerated from rest in a direction perpendicular to its generating lines in a viscous fluid is considered. The Dufort-Frankel method for the vorticity transport equation is used for the numerical simulation of viscous incompressible flows, and a new finite Fourier transform method is introduced in order to handle the stream function equation for accurate and efficient calculation. A major part of the present paper is devoted to physical properties of the flow for the early stages of development of the wake behind the obstacle for Reynolds number 98. 11. The rest of this paper demonstrates the important unsteady forces such as time-dependent drag, lift and moment acting on the body immersed in a viscous fluid, and presents specific numerical results for various transition.

AB - The flow normal to an infinite thin elliptic cylinder which is uniformly accelerated from rest in a direction perpendicular to its generating lines in a viscous fluid is considered. The Dufort-Frankel method for the vorticity transport equation is used for the numerical simulation of viscous incompressible flows, and a new finite Fourier transform method is introduced in order to handle the stream function equation for accurate and efficient calculation. A major part of the present paper is devoted to physical properties of the flow for the early stages of development of the wake behind the obstacle for Reynolds number 98. 11. The rest of this paper demonstrates the important unsteady forces such as time-dependent drag, lift and moment acting on the body immersed in a viscous fluid, and presents specific numerical results for various transition.

UR - http://www.scopus.com/inward/record.url?scp=0022683016&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0022683016&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0022683016

VL - 52

SP - 1197

EP - 1206

JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B

JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B

SN - 0387-5016

IS - 475

ER -