VORTEX EXCITATION CAUSED BY LONGITUDINAL VORTICES SHEDDING FROM CRUCIFORM CYLINDER SYSTEM IN WATER FLOW(Flow around Cylinder 1)
スポンサーリンク
概要
- 論文の詳細を見る
Wind tunnel experiments by the present authors have shown that large cross flow oscillations can be induced on the upstream cylinder in cruciform cylinder system by two types of longitudinal vortices, i.e. the trailing and the necklace vortices. In this work, experiments on this phenomenon is carried out in water tunnel over a comparable Reynolds number range to investigate the effects of the mass ratio M_R and the Scruton number Sc. The alternating lift coefficient C_L for Karman vortex excitation in water flow agrees well with that of air flow in spite of the large differences in M_R and Sc between them. However, the value of C_L for the trailing vortex excitation is much lower and no definite excitation due to the necklace vortex is observed in water flow.
- 2005-10-05
著者
-
Yamada Shuichi
Nagaoka University Of Technology
-
OOTANI Kazuki
Mitsubishi Heavy Industries Ltd.
-
TAKAHASHI Tsutomu
Nagaoka University of Technology
-
SHIRAKASHI Masataka
Nagaoka University of Technology
-
OOTANI Kazuki
Nagaoka University of Technology
-
Shirakashi M
Nagaoka University Of Technology
-
Shirakashi Masataka
Department Of Mechanical Engineering Nagaoka University Of Technology
-
Shirakashi Masataka
Nagaoka Science And Technical College
-
Shirakashi Masataka
Nagaoka Univ. Technol. Nagaoka Jpn
-
Takahashi T
Nagaoka University Of Technology
関連論文
- Vortex Excitation Caused by Longitudinal Vortices Shedding from Cruciform Cylinder System in Water Flow(Jets, Wakes and Separated Flows)
- VORTEX EXCITATION CAUSED BY LONGITUDINAL VORTICES SHEDDING FROM CRUCIFORM CYLINDER SYSTEM IN WATER FLOW(Flow around Cylinder 1)
- IMPROVEMENTS IN URANIUM ADSORPTION ABILITY OF A CIRCULATING FLUIDIZED BED ADSORBER
- Planar Elongational Rheometry Using Slit Entry Flow in Hele-Shaw Cell
- Influences of Non-Newtonian Viscosity and Elasticity on Potential Flow Analogy by Hele-Shaw Cell
- Capillary Entry Flow of Mobile Viscoelastic Fluid: Analysis Based on Boundary Layer Approximation and its Experimental Verification
- Statistical Characteristics of Turbulence in a Periodically Diverging-Converging Channel Flow
- EXPERIMENTAL STUDY ON UNIVERSALITY OF LONGITUDINAL VORTICES SHEDDING PERIODICALLY FROM CRISSCROSS CIRCULAR CYLINDER SYSTEM IN UNIFORM FLOW(Flow around Cylinder 1)
- Effect of Elasticity of a Polymer Solution on the Hele-Shaw Flow
- Influence of Cross-sectional Configuration on the Synchronization of Karman Vortex Shedding with the Cylinder Oscillation(Flow around Cylinder)
- Configuration and Frequency of Longitudinal Vortices Shedding from Two Circular Cylinders in Cruciform Arrangement
- Necklace Vortex Excitation of Upstream Cylinder in Crisscross Circular Cylinder System : Influence of Cylinder Diameter, Gap and Damping Factor
- The Structure of Turbulent Diffusion : 3rd Report, Study on Two-particle Diffusion and Relative Diffusion
- Large-scale Structures in the Wake a Circular Cylinder
- Automatic Steering Control of Sprinkler Boat
- Deformation Behavior of a Viscoelastic Fluid Jet
- Planar Elongational Rheometry Using Slit Entry Flow in Hele-Shaw Cell
- Influences of Non-Newtonian Viscosity and Elasticity on Potential Flow Analogy by Hele-Shaw Cell
- Capillary Entry Flow of Mobile Viscoelastic Fluid : Analysis Based on Boundary Layer Approximation and its Experimental Verification
- Interference Effect of Downstream Strip-Plate on the Crossflow Vibration of a Square Cylinder
- Prospect of Micro Power Generation Utilizing VIV in Small Stream Based on Verification Experiments of Power Generation in Water Tunnel