Bluff body fluid dynamics of a D-section with moving surface boundary-layer control
- Univ. of British Columbia, Vancouver, British Columbia (Canada). Dept. of Mechanical Engineering
- Kanto Gakuin Univ., Kanazawa, Yokohama (Japan). Dept. of Mechanical Engineering
Wind effects on bluff structures include higher drag force, vortex resonance and galloping type instabilities. Vibrations of tall buildings, bridges, smokestacks etc. have been of interest to scientists and engineers. Recent advances in material science and structural design have led to structures with reduced stiffness making them prone to wind, earthquake, as well as ocean waves and current excited oscillations. The present paper addresses this issue fundamentally through a comprehensive study aimed at the Moving Surface Boundary-layer Control (MSBC) of the classical D-section type bluff geometry which is susceptible to both vortex resonance and galloping type of instabilities. Extensive wind tunnel, numerical and flow visualization studies suggest that the concept of the MSBC represents a versatile tool for drag reduction and vibration control of the D-section.
- OSTI ID:
- 131704
- Report Number(s):
- CONF-950740-; ISBN 0-7918-1329-0; TRN: IM9551%%312
- Resource Relation:
- Conference: Joint American Society of Mechanical Engineers (ASME)/Japan Society of Mechanical Engineers (JSME) pressure vessels and piping conference, Honolulu, HI (United States), 23-27 Jul 1995; Other Information: PBD: 1995; Related Information: Is Part Of Flow-induced vibration 1995. PVP-Volume 298; Pettigrew, M.J.; Au-Yang, M.K.; Fujita, K. [eds.]; PB: 183 p.
- Country of Publication:
- United States
- Language:
- English
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