... ABSTRACT Filter Unit (FU) is a synthetic fiber net bag wrapping rubble stones. In this study, a two-dimensional numerical model to represent deformation of FUs is developed using circular finite-sized particles. The model includes two particle types: virtual rubble and virtual fiber...

... ABSTRACT Internal erosion is a common damage form occurred in extensive gravel soils. During the erosion process, the mechanism of particle deposition exists, but is difficult to survey or evaluate. In this research, first, the deposition rate of transported soils was studied, and the modified...

...) was used to cement the calcareous sands in this paper. The sand sample was immersed in the bacterial solution and cement solution successively, leading to precipitation of calcium carbonate to bond sand particles. The mechanical characteristics and microstructure of artificial cementing samples were...

... pressure, the mud is pressed into the mud suction pipe at the back of the cutter, Then, the mud water mixture is pumped out by the mud pump and transported to the reclamation area (or the designated sludge unloading area) to complete the dredging operation. reservoir characterization particle...

... the characteristics of large slenderness ratio and high liquid velocity. Considering the complexity of this problem and the problem of solid-liquid two-phase flow, this paper intends to study this problem by using the combination of moving particle semi implicit method (MPS) and discrete element method (DEM...

... ABSTRACT The motion law of solid particles in the pump is the research and development basis of two-phase flow pump, which is an important equipment in deep-sea mining. In this paper, a transparent pump test platform is developed, and the experimental research on the movement of particles...

... reservoir characterization angular velocity hydraulic collecting detector attitude angle hydraulic collection inertial reference frame sum acceleration metals & mining particle reference frame pipe upstream oil & gas spherical detector coordinate system rotation sensor...

... & medicine arch-shaped deformable structure discrete element method dem model strength deformable structure bead artificial intelligence deformation swollen hydrogel bead central load cylindrical connection hydrogel bead flexible outer frame milauer particle numerical simulation spherical...

... ABSTRACT Ultrasonic-based particle measurement is developing rapidly, but no research has been conducted on the measurement of ore particles inside multilayer flexible pipes. In this paper, based on theoretical analysis and simulation, the measurement of ore particles inside multilayer...

... particle heinrich submarine rigid landslide experimental data upstream oil & gas mp-dem displacement pressure field appl ocean res reservoir simulation landslide rigid landslide interaction experiment zhang particle-based method experimental result dem particle wan contact...

... ABSTRACT An experimental study of the submarine landslide on a slope and the tsunami waves is carried out in a wave flume. A slope with an adjustable angle is designed to generate the landslide, and two sizes of glass beads are used to study the influence of the percentages of particles...

... using the particle 2396 Table. 1 Considered conditions for the calculations using R-tsu, R-nor, and R-ob models R-tsu R-nor R-ob Grid size 200 35,000 m 150 1,000 m 15 500 m Vertical coordinate 1 layer (2D) 20 layers 20 layers (S-coordinate) (S-coordinate) Time step 45 s 120 s 5s River inflow condition...

... & gas displacement deformation particle midstream oil & gas offshore pipeline subsea pipeline propagation pipeline unpressurized pipeline tensile strain fault plane external pressure nondimensional fault displacement seismic fault modeling & simulation critical fault displacement...

... 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...

... information of SPH particles is exported. Secondly, the SPH particles are regarded as droplets, and the droplets load is calculated by the Monte Carlo method according to the droplet impact load curve. The distribution of droplets was modified according to the relationship between time and space. Finally...

... of the bottom plate is smaller than the average value and that near the edge is larger than the average value when the bottom plate deforms. This nonuniform distribution is caused by the interlocking between the particles to form ‘arch’. The amplitude of ‘arch’ is determined by the height of cargo and width...

...", consisting of thermo-sensitive memory expandable mesh, thermo-sensitive memory expandable pellet, rigid supporting particles, organic fibers and inorganic fibers, which the thermos-sensitive memory expandable mesh and thermo-sensitive memory expandable pellet can expand several times under downhole high...

... distribution of flow velocity to be exponential. particle riprap fraction cfd-dem coupling method upstream oil & gas contact stiffness formula tangential contact stiffness drift distance interaction contact point momentum fluid dynamics simulation flow velocity underwater riprap...

... ice load particle reservoir simulation sandglass-type fpso calculation result ice velocity sea ice model flow field subsea system calculation interaction ice area feature piranem reduction different type ice row discrete element model Proceedings of the Thirty-second (2022...

... services hull numerical simulation model marine transportation ice channel simulation model engineering collision midbody sph-fem history curve particle ship shoulder reservoir simulation structural response numerical simulation sailing simulation method icebelt resistance Proceedings...