Results 21 to 30 of about 419 (262)

Numerical Investigation on the Water Entry of Several Different Bow-Flared Sections

open access: yesApplied Sciences, 2020
The bow-flared section may be simplified in the prediction of slamming loads and whipping responses of ships. However, the difference of hydrodynamic characteristics between the water entry of the simplified sections and that of the original section has ...
Qiang Wang   +4 more
doaj   +1 more source

Aerodynamic Numerical Simulation Analysis of Water–Air Two-Phase Flow in Trans-Medium Aircraft

open access: yesDrones, 2022
A trans-medium aircraft is a new concept aircraft that can both dive in the water and fly in the air. In this paper, a new type of water–air multi-medium span vehicle is designed based on the water entry and exit structure model of a multi-rotor UAV ...
Jun Wei   +4 more
doaj   +1 more source

CFD Parallel Computing Technology for Chemical Non-Equilibrium Flow Based on Large Scale Linear Algebraic Equations

open access: yesChemical Engineering Transactions, 2018
The purpose of this study is to understand the operation mode of computational fluid dynamics (CFD) parallel computing technology for non-equilibrium flow.
Lili Hong
doaj   +1 more source

Application of the HPCMP CREATETM-AV Kestrel to an Integrated Propeller Prediction

open access: yesAerospace, 2020
This article presents the results of a computational investigation of an integrated propeller test case using the HPCMP CREATETM-AV Kestrel simulation tools.
Pooneh Aref   +3 more
doaj   +1 more source

CFD prediction of submarine motion during emergency surfacing

open access: yesZhongguo Jianchuan Yanjiu, 2019
[Objectives] Emergency surfacing is an important aspect of submarine vitality which is closely related to submarine safety. In order to master the motion laws of submarine during emergency surfacing performance,[Methods] this paper establishes a ...
LI Rijie, CHEN Qinglong, CHANG Wentian
doaj   +1 more source

‘The Equator–Pole grid system’: an overset grid system for the sphere, with an optimal uniformity property

open access: yesTellus: Series A, Dynamic Meteorology and Oceanography, 2018
This article proposes a new grid system for the sphere, which consists of three orthogonal and almost uniform grids. The basic one is a latitude-longitude grid covering an annular band around the equator.
Göran Starius
doaj   +1 more source

A Parallel Solver on a Dynamically Adaptive Overset Grid for Compressible Flow Problems

open access: yesAerospace
The overset grid adaptive method offers an efficient approach for the computational modeling of steady or transient three-dimensional compressible flow problems.
Mohamad El Hajj Ali Barada, Bayram Celik
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

Two Dimensional Simulation of Laminar Flow Around Two Bodies in Relative Motion [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2012
In this paper an efficient dual time implicit approach is used to solve viscous laminar flow around two bodies with general motion. Therefore, the grid includes a background grid and two sets of grids around the moving bodies.
sahar noori, F. Mahdavi, S.M.H. Karimian
doaj  

Numerical simulation of dynamic performance of trans-media unmanned vehicle during vertical take-off from water

open access: yesZhongguo Jianchuan Yanjiu, 2022
ObjectivesThis paper aims to study the kinetic and dynamic characteristics of an trans-media unmanned vehicle during vertical take-off from water.MethodsIts dynamic performance during the trans-media process from water to air is numerically simulated on ...
Lei QIU, Chaosheng ZHENG
doaj   +1 more source

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