Zobrazeno 1 - 10
of 471
pro vyhledávání: '"Decheng Wan"'
Suppression of tip vortex cavitation of elliptical hydrofoil based on active water injection methods
Publikováno v:
Zhongguo Jianchuan Yanjiu, Vol 18, Iss 4, Pp 175-185 (2023)
ObjectiveAs tip vortex cavitation (TVC) causes noise radiation and vibration, it is necessary to understand how to predict and control its development, and understand its mechanism in order to suppress it, especially in the field of ship propellers a
Externí odkaz:
https://doaj.org/article/e2dd7f39b85e46b29bff2a22a1e50418
Publikováno v:
Journal of Marine Science and Engineering, Vol 12, Iss 3, p 490 (2024)
Wakes produced by underwater vehicles, particularly submarines, in density-stratified fluids play a pivotal role across military, academic, and engineering domains. In comparison to homogeneous fluid environments, wakes in stratified flows exhibit di
Externí odkaz:
https://doaj.org/article/80be22317fd14a96920ac40b95a936f0
Publikováno v:
Zhongguo Jianchuan Yanjiu, Vol 17, Iss 5, Pp 85-102 (2022)
Hydrodynamic noise from an air-water interface is often encountered in marine engineering structures. It involves a complex mechanism, various forms of sound sources and many factors affecting the propagation. It interacts with the free surface and i
Externí odkaz:
https://doaj.org/article/9b22be6bf4544b7a833f7c718af5ac51
Publikováno v:
Zhongguo Jianchuan Yanjiu, Vol 17, Iss 4, Pp 177-182 (2022)
ObjectivesPoiseuille flow widely exists in the industry, but the stability and reliability of the moving particle semi-implicit (MPS) method in the simulation of wall shear flow such as Poiseuille flow need to be verified. MethodsThe meshless solver
Externí odkaz:
https://doaj.org/article/6a33117837e14cc485adf1945457c8ae
Publikováno v:
Zhongguo Jianchuan Yanjiu, Vol 17, Iss 3, Pp 93-101 (2022)
ObjectiveIn order to forecast a ship's maneuverability more realistically, it is necessary to conduct the direct simulation of the full-scale ship's maneuver. MethodsIn this paper, based on overset grid technology, calculations of the full-scale ship
Externí odkaz:
https://doaj.org/article/5d985817afb94105859eeb57923908cd
Publikováno v:
Zhongguo Jianchuan Yanjiu, Vol 17, Iss 3, Pp 1-28 (2022)
Water-air-bubble mixed flow is a complex flow generated by the intense interaction between marine structures and surrounding fluids. It involves a large span of temporal and spatial scale, and has many influencing factors on its generation and evolut
Externí odkaz:
https://doaj.org/article/63eafa1ee2384233bf6bcc2851cafd35
Publikováno v:
Zhongguo Jianchuan Yanjiu, Vol 17, Iss 3, Pp 153-159 (2022)
ObjectiveThe viv-FOAM-SJTU solver is used to carry out the numerical simulation of the vortex induced vibrations of a riser under different top oscillation excitation amplitudes. MethodsThe flow field is computed by the strip theory and Reynolds-aver
Externí odkaz:
https://doaj.org/article/9dfe8cb3997049278ae9c1fb94b3bda7
Publikováno v:
Zhongguo Jianchuan Yanjiu, Vol 17, Iss 2, Pp 63-72 (2022)
ObjectivesThis study seeks to optimize the total resistance and seakeeping performance of ships sailing in waves by adding appendages and changing their size. MethodsFirst, numerical calculations are performed on a KCS ship with two anti-pitching fin
Externí odkaz:
https://doaj.org/article/2a7599ee565144f98ab19ed4ceddc26e
Publikováno v:
Zhongguo Jianchuan Yanjiu, Vol 17, Iss 2, Pp 57-62 (2022)
ObjectiveIn the design stage of a luxury cruise ship, in order to save costs, it is necessary to use the computational fluid dynamics (CFD) method to predict the seakeeping performance of the cruise ship under design. MethodThe research object of thi
Externí odkaz:
https://doaj.org/article/7867398ef1404d1ba3ed2fae2a190dcd
Publikováno v:
Zhongguo Jianchuan Yanjiu, Vol 17, Iss 1, Pp 91-98 (2022)
ObjectivesIn order to explore the influence of the free surface and free end on the flow field around typical bluff bodies, the flow field around a finite-length cylinder with a free surface is studied. MethodsBased on the delay detached-eddy simulat
Externí odkaz:
https://doaj.org/article/7036f269576243858619d544a8455888