...Sid'Ahmed Daoud; Driss Nehari; Mohamed Aichouni; Taieb Nehari This paper presents a numerical investigation of a two-dimensional (2D) oscillatory flow around a cylinder of different elliptic ratios, in order to study the effect of the elliptic form of the cylinder on the vorticity field...

... the behavior of tidal-current turbines. We propose a discrete-vortex method with free-wake structure (DVM-UBC) to describe the behavior of a stand-alone tidal-current turbine and its surrounding unsteady flow and develop a numerical model to predict the performance and wake structure of the turbine based...

...Per R. M. Lindström An algorithm for heat transfer prediction of in-service welding operations in a forced flow of fluid is presented. The algorithm presented is derived from Rosenthal’s 3D heat flow equation and boundary layer approximations. This was possible by the introduction of an apparent...

...Solomon C. Yim; Huan Lin; Katsuji Tanizawa A two-dimensional fully nonlinear potential flow model is employed to investigate nonlinear stochastic responses of an experimental fluid-structure interaction system that includes both single-degree-of-freedom surge-only and two-degree-of-freedom surge...

...Robert D. Blevins, Consultant A model is developed for the steady fluid forces on a cylinder that is in the wake of a parallel, upstream cylinder in cross flow. The fluid forces are determined by correlating experimental data with an asymptotic model of the wake. This allows both lift and drag...

...Dara Williams; Annette Harte; Frank Grealish The offshore oil and gas industry is predicting the discovery of more and more deep water reservoirs. Increased water depths create a requirement for reliable pipelines to economically recover these deep water fields and also to minimize flow assurance...

... analysis marine vehicles ocean waves flow In marine-related engineering problems, it is often necessary to predict wave-body interactions. Classical investigations of these problems rely on the assumption of an inviscid fluid, full linearization of the boundary conditions and reliance on linear...

... laboratory experiments. To demonstrate feasibility, the study focuses on inline forces induced on fixed cylinders exposed to oscillatory flows, with increasing Keulegan-Carpenter numbers. This preliminary example illustrates how this force makes a transition from the inertia-dominated region at low Keulegan...