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RISRANS Simulation Versus Experiments of Flow Induced Motion of Circular Cylinder With Passive Turbulence Control at 35,000 < RE < 130,000
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Twodimensional (2D) Unsteady ReynoldsAveraged Navier–Stokes equations (URANS) equations with the Spalart–Allmaras turbulence model are used to simulate the flow and body kinematics of the transverse motion of springmounted ...
Two Tandem Cylinders With Passive Turbulence Control in Flow-Induced Vibration: Relation of Oscillation Patterns to Frequency Response
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Flow-induced vibrations (FIV) are conventionally destructive and should be suppressed. Since 2006, the Marine Renewable Energy Laboratory (MRELab) of the University of Michigan has been studying FIV of multiple cylinders ...
Interference Effects on Flow-Induced Oscillation of Three Tandem Cylinders With Passive Turbulence Control
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The characteristics of flow-induced oscillation (FIO) of multiple tandem cylinders with passive turbulence control (PTC) change due to interference between PTC cylinders. Identifying positive and negative interferences is ...
Multicylinder Flow Induced Motions: Enhancement by Passive Turbulence Control at 28,000<Re<120,000
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The VIVACE converter was introduced at OMAE2006 as a single, smooth, circularcylinder module. The hydrodynamics of VIVACE is being improved continuously to achieve higher density in harnessed hydrokinetic power. Intercylinder ...
Selective Surface Roughness to Suppress Flow Induced Motion of Two Circular Cylinders at 30,000 < Re < 120,000
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the Marine Renewable Energy Laboratory of the University of Michigan, selectively located surface roughness has been designed successfully to suppress vortexinduced vibrations (VIV) of a single cylinder by 60% compared ...
Sensitivity to Zone Covering of the Map of Passive Turbulence Control to Flow-Induced Motions for a Circular Cylinder at 30,000 ≤ Re ≤ 120,000
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Passive turbulence control (PTC) in the form of two straight roughness strips with variable width, and thickness about equal to the boundary layer thickness, is used to modify the flow-induced motions (FIM) of a rigid ...
Hydrokinetic Energy Conversion by Flow-Induced Oscillation of Two Tandem Cylinders of Different Stiffness
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The vortex-induced vibration for aquatic clean energy (VIVACE) converter harnesses hydrokinetic energy by enhancing flow-induced oscillations (FIOs) of elastically supported rigid cylinders in a river, tide, or ocean ...
Virtual Spring–Damping System for Flow Induced Motion Experiments
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Flowinduced motion (FIM) experiments of a single circular cylinder or multiple cylinders in an array involve several configuration and hydrodynamic parameters, such as diameter, mass, damping, stiffness, spacing, Reynolds ...
Numerical Study on the Effect of Tandem Spacing on Flow-Induced Motions of Two Cylinders With Passive Turbulence Control
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The effect of tandem spacing on the flow-induced motions (FIM) of two circular cylinders with passive turbulence control is investigated using two-dimensional (2D) unsteady Reynolds-averaged Navier–Stokes equations with ...
Computational and Experimental Assessment of Turbulence Stimulation on Flow Induced Motion of a Circular Cylinder
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Vortexinduced vibrations (VIVs) are highly nonlinear and it is hard to approach the problem analytically or computationally. Experimental investigation is therefore essential to address the problem and reveal some physical ...