[PDF] Top 20 A Coupled Simulation Method For A Vortex-Induced Vibration System

... individual vortex which sheds at the rear end of the body and travel down the ...an vortex shedding which is periodic and in alternating form will take place in the wake field, this is called a ... See full document

... The governing equations are discretised using element- based finite volume method (FVM). Rhie-Chow interpolation is used for pressure velocity coupling. A second-order backward Euler scheme is applied for temporal ... See full document

... The computational method is used to analyse a bluff body responses when exposed into specific fluid flow condition. A model is developed using Fluent 15, an application tools for fluid dynamics analysis from ANSYS ... See full document

... two-dimensional coupled cross-flow and in-line vortex-induced vibration (VIV) of a flexibly-mounted circular cylinder in a uniform flow is proposed and ...of coupled in-line/cross-flow ... See full document

... riser coupled with fluid ...the vortex-excited in-plane/out-of- plane ...and system mass-damping parameters, and estimated empirical coefficients, the predicted maximum amplitudes due to cross- flow ... See full document

... fully coupled pressure/velocity iterative solver plus a generalized alpha method as a semi-discrete time stepping ...Eddy Simulation (DES) technique ...mooring system are modeled using a user ... See full document

... the vibration from the vortex ...control method can be implemented through the integration of actuator to the vibrated ...this method, the external energy is supplied to the actuation ...the ... See full document

... modelling method that is computationally efficient for the VIV prediction of long flexible cylinders in three-dimensional incompressible ...only coupled through the structural model of the ...element ... See full document

... A method of modelling the vehicle-track-ground interaction is presented here using the com- mercial FE software ...track-ground system is introduced in which the ground is modelled using finite elements, ... See full document

... nonlinear system identification models for cylinder due to vortex induced vibration (VIV) has been presented ...Nonlinear system identification models generated after extracting the ... See full document

... convergent simulation results in flow over stationary cylinder at Re = 10 5 ...the system of two BWTs in the same flow ...that vibration increases, and the energy produce of the system are ... See full document

... adaptive vibration control for long-span cable- bridge structure is ...of vibration control for uncertain nonlinear systems of long-span cable- bridge structure is established; buffeting loading systems of ... See full document

... The demonstrated software capability to adapt the fluid mesh to the displacements of the structure allows to keep a relatively low mesh density in the strong gr[r] ... See full document

... However, as the flow velocity increased, the pressure and shear forces also increased, which increased the net lift and drag forces on the cylindrical bar. Eventually, at some critical velocity, the energy input from ... See full document

... present simulation, the ratio of the IL oscillation frequency to the CF oscillation frequency is around two, which conforms to the scenario of dual ...present simulation is f ox = ...present ... See full document

... 2 Computational method C370 order p = 8 was therefore employed throughout this study. A second order time-splitting scheme was used for both the viv and driven oscillation cases. The time integration for the viv ... See full document

... Figure 2 compares the reference cross-flow and streamwise responses obtained from two different runs with the straight cylinder. In the first one, flow speed was increased in 30 steps from zero to a maximum, while in the ... See full document

... The equation of motion of the structure is described in the non- linear form and an approximate solution of the equation is obtained by using a vibrational theory. Lock-in phenomena appear when the vortex shedding ... See full document

... the vortex-induced vibration of catenary riser in the ocean current has been ...the vortex-excited in-plane/out-of- plane modes and system fluid-structure parameters, the parametric ... See full document

... horizontal “leaves.” Overall, this study was successful in optimizing a low-cost, piezoelectric wind-harvesting device that mimics a tree. Zephyr Windbeam The Zephyr Windbeam is a small-scale alternative energy device ... See full document