... ABSTRACT The main challenge in building submerged breakwaters consists in guaranteeing the effectiveness of the breakwater, in terms of coast protection, achieving the maximum submergence. In this work, we carried out a numerical experiment on a submerged breakwater that incorporates...

... surface capture hydrodynamic characteristic knot control system self-propelled model depth-keeping algorithm diving process navigation result positive buoyancy elevator angle controller pitch angle navigation straight-route sailing test experiment submergence artificial...

... will be paid to loss of concrete due to simulated pack-ice interaction situations, as seen in ice prone environments. Opportunities for concrete submergence and long duration testing are the key features of the proposal. Construction of the proposed setup will occur immediately upon completion...

... ship fawpd artificial intelligence sustainability passive hydrofoil submergence ocean energy ABSTRACT Wave propulsion device (WPD) is a device that can directly absorb wave energy and convert it into forward thrust by using an oscillating hydrofoil. The concept of WPD has been proposed...

... of such evacuation center are still remained. prefecture tsunami disaster educational setting osaka bay area evacuation center nankai trough great earthquake welfare facility probability contingency planning breakdown disaster municipal office hyogo prefecture earthquake submergence depth...

... Abstract A two-dimensional, fully nonlinear numerical wave tank (NWT) is established to study wave interactions with a submerged circular cylinder undergoing large-amplitude heave motions. The mixed Eulerian-Lagrangian approach is applied for the time stepping of free surface. The boundary...

..., and for the same time averaged energy gain, the maximum wire tension is fairly lowered. electric generator new system submergence temporal variation wave height ocean energy pulley energy gain wire tension wave energy converter water surface equation maximum wire tension social...

... ABSTRACT: A relevant operating condition for a conventional submarine is the ship advance at snorkel submergence, when the air intake enables the diesel engine to propel the generator for batteries recharging. In this condition, the ship resistance components are the frictional resistance...

... on the effect of the ratio of submergence of the cylinders on wave transmission. They indicate that a twin-cylinder floating breakwater constructed from 1.8m diameter cylinders can be effective for deepwater waves having a length of up to 12 meters. Another variant has been developed as the A-frame floating...

... a wide range of Froude numbers. KEY WORDS: Bow/stern flows; complex potential, free-surface waves. INTRODUCTION Two-dimensional free surface flows past a fixed half-submerged obstacle is a challenging analytical and numerical problem, relevant to the generation of bow and stern flows in ship...

... ABSTRACT There have been many achievements on Tsunami research, such as Tsunami propagation theories, numeric simulation and etc., but little is made on coastal submergence. In this paper, a new method based on 3D simulation for tsunami and submergence is presented, and an example is shown...

.... Impact coefficients for normal force to the plate are determined for varying submergence, angle, and wave steepness. The experimental results are compared with previous literature, as well as the predictions of the forces and moments from a computational fluid dynamics code, COMET. COMET is a volume...

...Positioning and Installing Simulation of LUN-A Platform for Sakhalin-2 G. V. Zhukov, S. L. Karlinsky, M. V. Makarov «Rubin» Central Design Bureau for Marine Engineering St. Petersburg, Russia ABSTRACT Presented is a dynamic analysis of the positioning, submergence and installation of LUN...

... vulnerable to liquefaction in the event an earthquake hits these areas. c. The submerged portion at the edge of the deposits is generally more susceptible to liquefaction and easily leads to landslide or lateral spreading. The runout distance of the sliding mass in the submerged portions is generally known...

... ABSTRACT The paper investigates the problem of installing a subsea module from a single surface vessel in a combined environment, consisting of random waves and current. Particular emphasis is put on describing how the lateral dynamics of the submerged module is affected by the presence...

... of the most serious problems of authors system. Model experiments were carried out in the water pool with water depth fixed and changing the wave period (T). The experimental model used consists of a frontal lip whose lower part is submerged a little, a back wall and side walls, and is placed on the bottom...

... ABSTRACT Measurements of some non-linear features of waves propagating over a submerged horizontal cylinder with its axis parallel with the wave crests are compared with previous analytical and numerical predictions of the potential flow. Good agreement is found in most respects with second...

... on floating base with tension links anchored by gravity anchors or pile anchors. counteraction subsea system upstream oil & gas ballast tank 3 submergence displacement offshore ice-resistant platform ice load plattbrm buoyancy suspension system continental shelf hull 2 seismic region...

... calculation result 0 vlf transmission wave coefficient side 0 submergence numerical simulation experiment experimental data different submergence calculation upper side 0 amplitude breakwater system hydrodynamic force submerged plate ABSTRACT We propose a new breakwater...

... engineering conference experiment nonlinearity submerged plate nonlinear effect submergence chwang porous plate variation ofk gauge submerged pitching plate reflection porosity theoretical result wavemaker wave height wavelength discrepancy ABSTRACT A submerged pitching...