Results 41 to 50 of about 12,359,623 (295)
Influence of seabed sand wave on hydrodynamic performance of submersible
ObjectivesThis paper studies the hydrodynamic characteristics of submersible under the interference of seabed sand wave topography. MethodsBased on the computational fluid dynamics (CFD) method, the process of submersible passing above a seabed sand wave
Peng LI +3 more
doaj +1 more source
Simulation of zigzag maneuver and flow field characteristics for full-scale ship
ObjectiveIn order to forecast a ship's maneuverability more realistically, it is necessary to conduct the direct simulation of the full-scale ship's maneuver.
Nan JI +3 more
doaj +1 more source
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur +5 more
wiley +1 more source
A numerical study on ship-ship interaction in shallow and restricted waterway
In the present study, a numerical prediction method on the hydrodynamic interaction force and moment between two ships in shallow and restricted waterway is presented. Especially, the present study proposes a methodology to overcome the limitation of the
Sungwook Lee
doaj +1 more source
This paper presents a modified fifth-order WENO-HLLC Riemann solver for the transonic compressible viscous flows around the helicopter rotor in hover. The HLLC approximate Riemann solver is proposed to discrete the convection term involving grid velocity
Li Xu, Fengfeng Zhao, Jingjing Cai
doaj +1 more source
In MOCVD MoS2 memristors, a current compliance‐regulated Ag filament mechanism is revealed. The filament ruptures spontaneously during volatile switching, while subsequent growth proceeds vertically through the MoS2 layers and then laterally along the van der Waals gaps during nonvolatile switching.
Yuan Fa +19 more
wiley +1 more source
A stabilized finite element dynamic overset method for the Navier-Stokes equations [PDF]
In terms of mesh resolution requirements, higher-order finite element discretization methods offer a more economic means of obtaining accurate simulations and/or to resolve physics at scales not possible with lower-order schemes. For simulations that may
Liu, Chao
core +3 more sources
Simulation of an Isolated Tiltrotor in Hover with an Unstructured Overset-Grid RANS Solver [PDF]
An unstructured overset-grid Reynolds Averaged Navier-Stokes (RANS) solver, FUN3D, is used to simulate an isolated tiltrotor in hover. An overview of the computational method is presented as well as the details of the overset-grid systems.
Lee-Rausch, Elizabeth M. +1 more
core +2 more sources
Prediction of Resistance and Planing Attitude for Prismatic Planing Hull using OpenFOAM [PDF]
The prediction of the hydrodynamic performance of a planing hull vessel is an important and challenging topic for computational fluid dynamic (CFD) applications to naval hydrodynamics.
XiangYu Shi, Yang Zhang, Deuk-joon Yum
doaj +1 more source
Visual teach‐and‐repeat (VTR) navigation allows robots to learn and follow routes without building a full metric map. We show that navigation accuracy for VTR can be improved by integrating a topological map with error‐drift correction based on stereo vision.
Fuhai Ling, Ze Huang, Tony J. Prescott
wiley +1 more source

