... ABSTRACT An experiment on the interaction of an internal solitary wave (ISW) with a horizontal cylinder was conducted in a gravitationally stratified fluid flume. The particle image velocimeter (PIV) and the force sensor were used to study the flow structure and the forces on the cylinder...

... ABSTRACT Accurate prediction of the structural response of flexible cylinder vortex-induced vibrations (VIVs) relies heavily on the accuracy of the acquired hydrodynamic coefficient database. Due to a large number of variables, the construction of systematic hydrodynamic databases from rigid...

.... Generative Adversarial Networks (GAN) has been used to predict the unsteady laminar flow vortex shedding on the cylinder (Lee et al., 2017), the results show that the prediction and CFD calculation of flow field on the qualitative and quantitative are in good agreement. Convolutional Neural Network (CNN) has...

... ABSTRACT This paper investigates the flow through and around a square array of cylinders. The investigations were performed numerically by RANS simulation with kω-SST turbulent model using OpenFoam. The effects of volume fraction on the drag coefficient have not been studied completely yet...

... of the entire system as a whole and its individual elements. The oscillation parameters depend on the ratios of the inertial, stiffness and hydrodynamic characteristics of the objects in the system, that vary over a wide range. iceberg natural oscillation tension force cylinder formula torsional...

... of the cutting arm is established and the range of motion is analyzed. The relationship between the vertical movement of the cutting head and the extension of the hydraulic cylinder is obtained by numerical calculation. Cement is used to simulate polymetallic sulfide mines, and the test platform is used to carry...

.... Huera-Huarte (2017) tested the VIV of the cylinder with different densities and sizes wire meshes, they concluded that this device can affect the boundary layer and suppress the vortex street, meanwhile, the drag coefficient had no increased in most cases. Ren et al (2019) experimentally investigated...

... ABSTRACT Floating offshore platforms mostly consist of a single cylinder or multi-cylinder, which is susceptible to vortex-induced motions (VIM) in the ocean current. In this paper, numerical simulations are performed to study the VIM of four rigidly connected cylinder at a large reduced...

... hydraulic mechanical grab seabed surface proceedings cylinder suitable position seabed drilling massive rock sample exploration grab bucket hydraulic power system sampler Proceedings of the Thirty-second (2022) International Ocean and Polar Engineering Conference Shanghai, China, June 5 10...

... ABSTRACT This paper presents the results of ongoing work regarding numerical simulations of breaking wave impacts on a surface-piercing cylinder. The computational fluid dynamics solver, Code_Saturne , using the volume of fluid approach, is presented and utilised for offshore hydrodynamics...

... fluid dynamics elastic cylinder three-dimensional elastic cylinder inline direction vortex structure reservoir simulation vibration uniform flow deformation cylinder amplitude displacement crossflow direction upstream oil & gas frequency flow field characteristic different...

... ABSTRACT In this paper, the dynamic response of a self-induced elastic deformation of a beam attached to a cylinder in channel flow were studied in the two-dimensional flow regime. We explored the response of the elastic deformation of a beam for a wide range of geometric features. The vortex...

..., a classical numerical case of flow around a cylinder under Re = 40 is used to validate this model. And a study case with experimental results of solitary wave interacting with vertical cylinders is designed to prove the practicability of the model. The free surface elevations recorded at eight wave gauges...

... amplitude to cylinder diameter which is less than 12. pipe net change marine pipe offshore pipeline vertical profile drag coefficient x-velocity distribution upstream oil & gas sea bed diameter cylinder sediment snapshot elevation net change scour force load force ratio sectional...

.... upstream oil & gas subsea system model test heave floating production storage & offloading load case cfpso roll motion floating production storage and offloading amplitude frequency pure wave case eigenperiod cylinder load condition eigenfrequency floating production system fpso...

... of composite hydraulic cylinders mounted on the steel wire rope between the winch and the lifting point. The wave excitation signal is transmitted to the lifting point through the vessel, and the movement signal of the lifting point is measured by MRU and serves as the input signal of the heave compensation...

... of the cylindrical buoy-rope-drum wave power generation device was numerically calculated in this paper, and the method of restraining the vortex induced motion of the cylinder by the spiral side plate suitable for this structure was calculated and analyzed. Three side plate heights H0.1D, H0.2D,H0.3D, the drag...

... ABSTRACT In this paper, low-speed water entry of four projectiles with various head types is numerically studied by using an improved multiphase moving particle semi-implicit (MPS) method. The projectiles are composed of a solid circular cylinder with L/D = 4.5 and different head shapes...

... seismic data discrimination, chemical anomalies, etc. probe rod penetration mechanism hydraulic coupling detection system reservoir characterization hydraulic cylinder upstream oil & gas cylinder sediment storage mechanism dual-channel hydraulic coupling mechanism cloud diagram...

... states government external pressure thickness upstream oil & gas offshore pipeline karampour cylinder north america government collapse pressure composite pipeline orientation propagation fea result proceedings fiber orientation cfrp albermani external hydrostatic pressure tensile...