Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Weichao Shi"'
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-20 (2021)
Abstract Symbiotic relationships have developed through natural evolution. For example, that of the remora fish attached to the body of a shark. From the remora’s perspective, this could be associated to an increased hydrodynamic efficiency in swim
Externí odkaz:
https://doaj.org/article/78a035562a3d43168f381a3e13b7f88b
Publikováno v:
Journal of Marine Science and Engineering, Vol 11, Iss 3, p 632 (2023)
Recent studies indicate that bow foil biomimetic systems can significantly improve ship propulsion in waves. In this paper, the DTMB 5415 ship model is taken as the object and a semi-active elastic flapping foil is proposed to install at its bow unde
Externí odkaz:
https://doaj.org/article/9fe810a2948a48d3a8c517feb2e25d1b
Publikováno v:
Water, Vol 15, Iss 2, p 269 (2023)
The semi-active flapping foil driven by the swing arm is a simple structure to realize the propulsion of the flapping foil. The motion trajectory of this semi-active flapping foil mechanism is a circular arc, and its hydrodynamic characteristics are
Externí odkaz:
https://doaj.org/article/fffad199dea047aebe609f7ff1f10b18
Autor:
I Ketut Aria Pria Utama, Dendy Satrio, Mukhtasor Mukhtasor, Mehmet Atlar, Weichao Shi, Ridho Hantoro, Giles Thomas
Publikováno v:
Journal of Mechanical Engineering and Sciences, Vol 14, Iss 3, Pp 6982-6992 (2020)
The main disadvantage of the vertical-axis turbine is its low coefficient of performance. The purpose of this work was to propose a method to improve this performance by investigating the hydrodynamic forces and the flow-field of a foil that was modi
Externí odkaz:
https://doaj.org/article/83d0d34a62f349ec9095270c594da479
Autor:
Callum Stark, Weichao Shi
Publikováno v:
Royal Society Open Science, Vol 8, Iss 9 (2021)
Underwater radiated noise (URN) has a negative impact on the marine acoustic environment where it can disrupt marine creature's basic living functions such as navigation and communication. To control the ambient ocean noise levels due to human activi
Externí odkaz:
https://doaj.org/article/dbb0e7ab8e04416a8910df0f1fc0f700
Publikováno v:
Journal of Marine Science and Engineering, Vol 10, Iss 7, p 855 (2022)
Taking the rigid NACA0012 airfoil as the object, the key structural parameters of the spring–mass system that govern the dynamics of the double-elastic-constrained flapping hydrofoil are numerically studied in this paper. A two-dimensional numerica
Externí odkaz:
https://doaj.org/article/7f83e982e7e8498d835e57797c56f480
Publikováno v:
Journal of Marine Science and Engineering, Vol 10, Iss 3, p 388 (2022)
The decarbonisation of waterborne transport is arguably the biggest challenge faced by the maritime industry presently. By 2050, the International Maritime Organization (IMO) aims to reduce greenhouse gas emissions from the shipping industry by 50% c
Externí odkaz:
https://doaj.org/article/f69da148461d406c8fe149777f9e66b3
Publikováno v:
Applied Sciences, Vol 11, Iss 17, p 7912 (2021)
The rotation accuracy of the aerostatic spindle can easily be affected by shaft shape errors due to the small gas film clearance. Thus, the main shaft shape errors with the largest scale—that is, the roundness and cylindricity errors—are studied
Externí odkaz:
https://doaj.org/article/8cb5333739bb4b839cd0d43e639f7c0d
Publikováno v:
Water, Vol 13, Iss 15, p 2103 (2021)
This paper researched into the harmonic and anharmonic underwater flapping foil propulsion systems to improve the efficiency of these bioinspired propulsors. The angle of attack, the pitching angle, the heaving amplitude, and the phase difference are
Externí odkaz:
https://doaj.org/article/141336506c2e45b98a68c1582b457411
Publikováno v:
Sensors, Vol 20, Iss 3, p 688 (2020)
Aimed at improving the low measurement accuracy of the binocular vision sensor along the optical axis in the process of target tracking, we proposed a method for auxiliary correction using a laser-ranging sensor in this paper. In the process of syste
Externí odkaz:
https://doaj.org/article/7d52e1305f744b4d8bad957719630b24