Zobrazeno 1 - 10
of 111
pro vyhledávání: '"Zeraatgar, Hamid"'
Autor:
Moghaddas AliAsghar, Zeraatgar Hamid
Publikováno v:
Polish Maritime Research, Vol 31, Iss 3, Pp 25-33 (2024)
A semi-planing catamaran is a type of marine craft that benefits from high speed, in conjunction with the its inherent characteristics such as a large deck and high transverse stability. The aspect ratio, length over the beam of a demi-hull, signific
Externí odkaz:
https://doaj.org/article/bc2baa0993644a76a0cbebd98c0e02a6
Autor:
Shajaripour, Milad, Zeraatgar, Hamid
Publikováno v:
In Applied Ocean Research December 2024 153
Publikováno v:
In Ocean Engineering 1 February 2025 317
Publikováno v:
Polish Maritime Research, Vol 31, Iss 1, Pp 85-93 (2024)
The prediction of fuel consumption and resulting transportation costs is a crucial stage in ship design, particularly for conditions involving motion in waves. This study investigates the real-time fuel consumption of a container ship when sailing in
Externí odkaz:
https://doaj.org/article/e6eb0b9515204f989e1707bc7c6db28f
Publikováno v:
Polish Maritime Research, Vol 30, Iss 4, Pp 61-73 (2023)
Propeller performance is typically considered under clean conditions, despite the fact that fouling is an inevitable phenomenon for propellers. The main objective of this study is to investigate the effects of roughness due to fouling on the performa
Externí odkaz:
https://doaj.org/article/1a64bf14b6b84ad8948c8bebf8c485cb
Publikováno v:
In Powder Technology 2 January 2024 432
Autor:
Sadati, Kazem, Zeraatgar, Hamid
Publikováno v:
In Ocean Engineering 1 November 2023 287 Part 1
Publikováno v:
In Ocean Engineering 15 May 2023 276
Publikováno v:
Polish Maritime Research, Vol 29, Iss 4, Pp 12-25 (2022)
The modelling and simulation of planing craft manoeuvres requires coupled six degrees of freedom (6 DOF) motion equations. A coupled 6 DOF motion equation needs hundreds of manoeuvring hydrodynamic coefficients (MHCs) that are mostly determined using
Externí odkaz:
https://doaj.org/article/48fea0ef466942099b0527261ab33887
Publikováno v:
Polish Maritime Research, Vol 29, Iss 4, Pp 56-76 (2022)
In this study, the impact of propeller emergence on the performance of a ship (speed), propeller (thrust, torque, and RPM), a diesel engine (torque and RPM) and fuel consumption are analysed under severe sea conditions. The goal is to describe the va
Externí odkaz:
https://doaj.org/article/ce4aee08d6b04e86bf42ff358e706bdb