Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Xiao-Qian Dong"'
Publikováno v:
Journal of Ocean Engineering and Science, Vol 3, Iss 3, Pp 186-204 (2018)
This paper presents our numerical study of the scale effects on a tip-rake propeller, the PPTC-II, based on the RANS simulations using software FLUENT 6.3. The low Re option in SST k–ω model is adopted at model scale, together with fine prism grid
Externí odkaz:
https://doaj.org/article/b1729a541c6f4d9ab72184cc1dab0b02
Publikováno v:
Journal of Marine Science and Engineering, Vol 6, Iss 2, p 71 (2018)
Unsteady Reynolds-averaged Navier–Stokes simulations of an axial-flow pump for waterjet propulsion are carried out at model scale, and the numerical uncertainties are analyzed mainly according to the procedure recommended by the twenty-eighth Inter
Externí odkaz:
https://doaj.org/article/668cfc0ed3b24904bfd92347e8d332f9
Publikováno v:
Applied Ocean Research. 127:103318
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e7246213905a98877c1da6c05035bc4
https://doi.org/10.1016/j.apor.2022.103318
https://doi.org/10.1016/j.apor.2022.103318
The pump-jet propulsor consists of a duct, a rotor and stators which are installed upstream of the rotor to provide pre-swirl flow or downstream of rotor to absorb the kinetic energy in the flow. The strong interactions between the three components a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7875618fa1fc0bef9ee605688887b0ad
https://doi.org/10.1115/1.0001057v
https://doi.org/10.1115/1.0001057v
The turbulent flow around a cavitating controllable pitch propeller (CPP) is simulated by solving the Reynolds-Averaged Navier-Stokes (RANS) equations, to investigate the dynamic effects on cavitation when the pitch of propeller blades is changed at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::156e5aaa4445828718b625fa1460fd53
https://doi.org/10.1115/1.0001260v
https://doi.org/10.1115/1.0001260v
Publikováno v:
Journal of Shanghai Jiaotong University (Science). 24:158-167
Compared with open propellers, the impeller of a tunnel thruster is more vulnerable to cavitation and structural vibration problems because the impeller is typically subject to severe non-uniformity of inflow produced by the blunt gearbox. Model test
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1593ac527b35da4b8034967c383b0ec
https://doi.org/10.1007/s12204-019-2052-z
https://doi.org/10.1007/s12204-019-2052-z
Publikováno v:
Lecture Notes in Civil Engineering ISBN: 9789811546235
A vortex-lattice modeling approach is proposed for investigating the free-surface effects on the hydrodynamics of submerged moving bodies and the propeller in the frame of the potential flow theory. The bodies, the propeller, and the free surface wav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a8a5d7e35740a13e143b6f3d41d3bdbd
https://doi.org/10.1007/978-981-15-4624-2_38
https://doi.org/10.1007/978-981-15-4624-2_38
Publikováno v:
Journal of Ocean Engineering and Science, Vol 3, Iss 3, Pp 186-204 (2018)
This paper presents our numerical study of the scale effects on a tip-rake propeller, the PPTC-II, based on the RANS simulations using software FLUENT 6.3. The low Re option in SST k–ω model is adopted at model scale, together with fine prism grid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b86710432c3476e5bddde5d10b290170
http://www.sciencedirect.com/science/article/pii/S2468013317301298
http://www.sciencedirect.com/science/article/pii/S2468013317301298
Publikováno v:
Ships and Offshore Structures. 14:238-248
Tunnel thrusters are more vulnerable to cavitation due to the tip clearance flow, blockage effect of the gearbox, and heavy blade loads as compared with open propellers, which makes the problems of...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a78a7372db1d969fce1db0104c0d4ea
https://doi.org/10.1080/17445302.2018.1496566
https://doi.org/10.1080/17445302.2018.1496566
Publikováno v:
Applied Ocean Research. 113:102723
Cavitation inception and radiated noise of the pump-jet propulsor are closely related to the strength of vortical flows existing in the clearance between rotor-blade tips and duct surface, which is ultimately determined by blade geometry close to the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb5724419ad3022d7fc1caa3fb799ad3
https://doi.org/10.1016/j.apor.2021.102723
https://doi.org/10.1016/j.apor.2021.102723