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

Takahiko Tanahashi, Tatsuo Sawada, Eriya Kanai, Akira Chino, Tsuneyo Ando

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)1197-1206
Number of pages10
JournalNippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume52
Issue number475
Publication statusPublished - 1986 Mar
Externally publishedYes

Fingerprint

viscous fluids
Fluids
incompressible flow
Incompressible flow
Vorticity
wakes
vorticity
drag
Drag
Reynolds number
Fourier transforms
Physical properties
physical properties
moments
Computer simulation
simulation

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

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.

In: Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 52, No. 475, 03.1986, p. 1197-1206.

Research output: Contribution to journalArticle

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