Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Ahmad Hajivand"'
Publikováno v:
محیط زیست و مهندسی آب, Vol 6, Iss 1, Pp 31-44 (2020)
In order to protect the bank and prevent their erosion spur dike is used. Importance of these structures in the bend is more, because of secondary flows and consequently bank erosion. In this paper the flow pattern around series of vertical spure dik
Externí odkaz:
https://doaj.org/article/f9c7303c2aab4f2286449ef4c1355c5d
Publikováno v:
International Journal of Maritime Technology, Vol 13, Iss Winter and Spring 2020, Pp 51-59 (2020)
In recent decades, there has been a growing demand for composite materials with high strength to weight ratio and high stiffness to weight ratio for use in the marine industry to improve the hydrodynamic and structural performance of vessels and prop
Externí odkaz:
https://doaj.org/article/336eac34eab94addab37bd9bb1aa7ccf
Publikováno v:
Brodogradnja, Vol 67, Iss 1, Pp 19-41 (2016)
AUVs are the most suitable tool for conduction survey concerning with global environmental problems. AUVs maneuverability should be carefully checked so as to improve energy efficiency of the vehicle and avoid unexpected motion. Oblique towing test (
Externí odkaz:
https://doaj.org/article/d10cb396beeb4b1fbf8a935d5ccee957
Publikováno v:
Journal of Marine Science and Application. 21:67-79
Publikováno v:
International Journal of Naval Architecture and Ocean Engineering, Vol 7, Iss 5, Pp 848-872 (2015)
Hydrodynamic derivatives or coefficients are required to predict the maneuvering characteristics of a marine vehicle. These derivatives are obtained numerically for a DTMB 5512 model ship by virtual simulating of captive model tests in a CFD environm
Externí odkaz:
https://doaj.org/article/3a2b53dec1a844a687c63fdb52f9d5ca
Publikováno v:
International Journal of Naval Architecture and Ocean Engineering, Vol 7, Iss 3, Pp 540-558 (2015)
Maneuvering oblique towing test is simulated in a Computational Fluid Dynamic (CFD) environment to obtain the linear and nonlinear velocity dependent damping coefficients for a DTMB 5512 model ship. The simulations are carried out in freely accessibl
Externí odkaz:
https://doaj.org/article/916404288adb44fbb5228246151b9e1d
Publikováno v:
Ocean Engineering. 275:114148
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment. :147509022211432
This study investigated the turning maneuver performance of a containership in regular waves using a two-time scale formulation. This article also presents a ship motion program, coupled with a 3-degree of freedom (3-DOF) maneuvering solver, whereby
Autor:
Hamidreza Mahmoodi, Ahmad Hajivand
Publikováno v:
Applied Ocean Research. 123:103186
Publikováno v:
Applied Ocean Research. 117:102944
Zigzag is one of the most crucial standard ship maneuvering tests performed to evaluate the yaw-checking ability. However, conducting experiments and studying the flow in free-running maneuver tests such as the zigzag test is associated with many com