... friction and/or flow separation is structure surfaces (e.g., Chen, 2004; Molin et al., 2009; Liu and Li, quantified. We find that the ratio of the viscous damping force due to 2014; Liu and Falzarano, 2019), where linear or/and quadratic damping wall friction to radiation damping is approximately 34%~43...

... axial velocity profile starboard side fin fin rudder flow separation normal rudder upstream oil & gas self-propulsion factor simulation starboard side fin rudder portside fin ship aoa experiment portside boundary condition vortex flow field propeller The EFD and CFD...

... kinematic energy. Moreover, small-scale behaviors such as the mini-collapse during the run-up phase and the back-wash bore during the down-rush phase were also presented in their study. However, flow separation on the boundary layer and vortex structures underneath the separated shear layer and hydraulic...

... increases to and , Su and Sw do not decrease considerably, but the energy density of transverse velocity component (Sv) gets significantly lower. The Upstream Separation Distance at the Pile Base The flow separation at the upstream base of an upright pile is of particular importance from the generation...

... on the cylinder. By using the present method, good time predictions in both the positive and negative horizontal force peaks are achieved. However, the current method gives poor predictions in force magnitudes, mainly because it is unable to take viscous effect into account when flow separation or vortex shedding...

... on the periodic wave scattering by solid (e.g. Wiegel, 1960; Liu and Abbaspour, 1982) and slotted barriers (e.g. Isaacon et al., 1998; Huang, 2007) using either experimental or numerical approach. boundary time instant counterclockwise vortex experiment flow separation porous effect obstacle...

... level of granularity. This paper also demonstrates that for certain ducts, a non-uniform loading over the disk can improve overall performance by limiting flow separation within the duct. INTRODUCTION Diffuser augmentation of wind turbines has been studied for decades by academics and companies...

... ABSTRACT Flow separation is a major cause of the unexpected drag increase in marine structures. The experimental study of hydrodynamic flow separation control through vortex generators (VGs) was conducted in Shanghai Jiao Tong University. Vortex generators have been widely used in aircraft...

... The initial parameters corresponding to flow separation from the wedge vertex during the initial stage of the impact of a wedge on a liquid halfspace are studied. The liquid is assumed to be ideal and incompressible; gravity and surface tension effects are ignored. The analytical solution...

... resolution of viscous, nonlin- ear free surface flow around large submersible pontoon structures, it is necessary to employ more sophisticated numerical methods and turbulence models which are capable of dealing with com- plex three-dimensional flows, including massive flow separation, vortex shedding...

... stage of a TLP. vertical cylinder tension leg platform transition corner radius bottom edge tlp column nonlinear offshore oscillation cylinder sharp-edged cylinder investigation engineering regime equation separation thiagarajan flow separation heave Proceedings ofthe Tenth...

... aerodynamics. The two-dimensional incompressible potential-flow model simulates the effect of flow separation in unsteady flow by placing surface sources, with timedependent strength and angular positions on the rear wetted surface of the body, and downstream sinks to form a closed wake model...

..., and wave induced forces are also measured in order to examine the resultant effects of flow separations. It is confirmed that the proposed numerical method is very useful for predicting the steady-state vortex flow pattern around the curtain-walled breakwater as well as the vortex-induced forces on it. I...