Zobrazeno 1 - 10
of 255
pro vyhledávání: '"Yu Fukunishi"'
Publikováno v:
Theoretical and Applied Mechanics Letters, Vol 9, Iss 3, Pp 202-205 (2019)
ABSTRACT: Numerical simulations of the liquid flow scattering from rotary atomizers are performed using an incompressible smoothed particle hydrodynamics (SPH) method. The influence of grooves at the edges of the atomizers on the formation of ligamen
Externí odkaz:
https://doaj.org/article/818de0daa913406ea4eac25bff66c9f0
Publikováno v:
Theoretical and Applied Mechanics Letters, Vol 9, Iss 1, Pp 32-35 (2019)
A numerical simulation is performed to find out a key vortical structure in the laminar-turbulent transition. A low-speed streak is generated inside a laminar boundary layer using an isolated cuboid roughness, aimed at providing an environment unstab
Externí odkaz:
https://doaj.org/article/ec1050af61964930bca854c8e6b18cf1
Publikováno v:
Journal of Fluid Science and Technology, Vol 16, Iss 1, Pp JFST0003-JFST0003 (2021)
An experimental study is performed to investigate the flow structures near the edges of rotating disks with different edge shapes. By changing the rotational speed, the Reynolds number is changed from 277 to 356. It is found that the fluid motion nea
Externí odkaz:
https://doaj.org/article/976a752dfd4345739033501d47d7c386
Publikováno v:
Journal of Fluid Science and Technology, Vol 15, Iss 3, Pp JFST0017-JFST0017 (2020)
A wind tunnel experiment was performed to investigate the requirements for providing a suitable environment for easily creating a localized turbulent region in a laminar boundary layer. A combination of a short-duration jet and suctions was used to p
Externí odkaz:
https://doaj.org/article/8f46600ca5fb4bec8bea5078002885f3
Publikováno v:
Journal of Fluid Science and Technology, Vol 15, Iss 1, Pp JFST0001-JFST0001 (2020)
In this study, the receptivity of a flat-plate boundary layer was studied by introducing a thin sheet-type disturbance. An airfoil-shaped device was used to generate a thin disturbance without velocity deficit in which a steady jet was ejected from i
Externí odkaz:
https://doaj.org/article/78bbb3a0fdf7465793b2dae03fd775fa
Publikováno v:
Journal of Fluid Science and Technology, Vol 14, Iss 2, Pp JFST0008-JFST0008 (2019)
A wind tunnel experiment was performed to investigate the suitable conditions in which a localized turbulent region can easily be generated in a flat-plate boundary layer. An artificial disturbance of zero-mass flux was introduced upstream using a co
Externí odkaz:
https://doaj.org/article/5dcf35852ff149d382a9760d24911ac1
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 84, Iss 862, Pp 18-00132-18-00132 (2018)
Behaviors of liquid films scattering from a disk-type or cup-type rotary atomizer are studied using computations based on the three-dimensional Smoothed Particle Hydrodynamics (SPH) method. To reduce computational costs while maintaining a high spati
Externí odkaz:
https://doaj.org/article/bac9d482d1d24693b3774085944a9d06
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 84, Iss 857, Pp 17-00478-17-00478 (2017)
Numerical simulations are carried out aimed at finding a key flow structure which leads to a laminar-turbulent transition of a boundary layer with streaky structures. In the preliminary computation, an array of cuboids is used to form streaky structu
Externí odkaz:
https://doaj.org/article/520122c347d34475862692f81391a199
Publikováno v:
Journal of Fluid Science and Technology, Vol 8, Iss 1, Pp 136-145 (2013)
Three-dimensional numerical simulation of the flow around a leading edge of a flat plate when vortices with their axes normal to the flat plate surface is carried out to investigate the leading-edge receptivity to the vortical disturbances. It is sho
Externí odkaz:
https://doaj.org/article/b59779e7aae942eabab9f44b9d727390
Boundary Layer Receptivity to Localized Disturbances in Freestream Caused by a Vortex Ring Collision
Publikováno v:
Journal of Applied Fluid Mechanics, Vol 6, Iss 3, Pp 425-433 (2013)
The receptivity of a smooth flat plate to localized disturbances in freestream is investigated experimentally and numerically. The disturbances are generated outside a nominally-zero-pressure-gradient laminar boundary layer by a collision of two iden
Externí odkaz:
https://doaj.org/article/fa3d6a72727941cf84a30464409137f5