Results 11 to 20 of about 3,519,058 (177)

Advanced security infrastructures for grid education [PDF]

open access: yes, 2006
This paper describes the research conducted into advanced authorization infrastructures at the National e-Science Centre (NeSC) at the University of Glasgow and their application to support a teaching environment as part of the Dynamic Virtual ...
Sinnott, R.O., Stell, A.J., Watt, J.
core   +10 more sources

Research on Aerodynamic Characteristics of Trans-Media Vehicles Entering and Exiting the Water in Still Water and Wave Environments

open access: yesDrones, 2023
The problem of aircraft entering and exiting water is a complex, nonlinear, strongly disturbed, and multi-coupled multiphase flow problem, which involves the precise capture of the air/water interface and the multi-coupling interaction between aircraft ...
Jun Wei   +6 more
doaj   +1 more source

Numerical simulation for hydrodynamic performance of marine current turbine based on overset grid

open access: yesZhongguo Jianchuan Yanjiu, 2018
[Objectives] In order to study the unsteady hydrodynamic performance of turbines under changing current conditions,[Method] this paper uses the Dynamic Fluid Body Interaction(DFBI) method based on an overset grid to simulate the unsteady hydrodynamic ...
LIU Yao, CAI Weijun, WANG Mingzhou
doaj   +1 more source

Numerical Simulation of Dynamic Pressure Change in Transport Aircraft Cabin with Airdrop

open access: yesHangkong gongcheng jinzhan, 2021
When heavy equipment are airdropped, the cabin cross-section is largely blocked, and rapid moving of heavy equipment will cause drastic changes in cabin pressure and even damage the health of cabin crew.Therefore, it is necessary to carry out numerical ...
LIU Weibing, JIAO Yuqin, ZOU Hongyi
doaj   +1 more source

CFD simulation of ship turning motion in waves

open access: yesZhongguo Jianchuan Yanjiu, 2019
[Objectives] The ship turning motion can reflect the steerability of the ship during navigation and is closely related to the ship navigation safety.[Methods] In this paper, the direct numerical simulation of the free turning motion of the standard ship ...
Wang Jianhua, Wan Decheng
doaj   +1 more source

Research on the Performance of Pumpjet Propulsor of Different Scales

open access: yesJournal of Marine Science and Engineering, 2022
This study presents a numerical research on the open-water performance of a pumpjet propulsor at different scales. Simulations were performed by an in-house viscous CFD (Computational Fluid Dynamic) code. The Reynolds-averaged Navier–Stokes (RANS) method
Jun Yang   +4 more
doaj   +1 more source

A parallel dynamic overset grid framework for immersed boundary methods

open access: yesCoRR, 2019
A parallel dynamic overset framework has been developed for the curvilinear immersed boundary (overset-CURVIB) method to enable tackling a wide range of challenging flow problems. The dynamic overset grids are used to locally increase the grid resolution near complex immersed bodies, which are handled using a sharp interface immersed boundary method ...
Mohammadali Hedayat, Iman Borazjani
openaire   +3 more sources

Dynamic data replication in the grid with freshness and correctness guarantees [PDF]

open access: yes, 2011
This thesis explores architectural issues and performance aspects of data Grid infrastructures. The objective is to develop a scalable infrastructure that is capable to dynamically manage replicated data in the Grid while at the same time providing ...
Voicu, Laura Cristiana
core   +1 more source

Simulation of an Isolated Tiltrotor in Hover with an Unstructured Overset-Grid RANS Solver [PDF]

open access: yes, 2009
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.
Robert Biedron, Elizabeth Lee-Rausch
core   +2 more sources

Overset grids for fluid dynamics analysis of internal combustion engines

open access: yesEnergy Procedia, 2017
Abstract Overset grids is emerging as an increasingly important and powerful tool in fluid dynamics simulations. A model built with the overset mesh technique consists of multiple spatially superimposed grids, one for each moving element (valves and piston in case of internal combustion engines) plus one background grid (representing the fixed ...
Andrea Berton   +2 more
openaire   +2 more sources

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