Results 1 to 10 of about 8,199 (263)
Longitudinal vortex rolls in fluids [PDF]
Journal of Heat and Mass Transfer Research, 2020 This paper is concerned with longitudinal vortex rolls in fluids. The longutudinal rolls are observed in the sea surface, desert, and atmosphere. However, origin of the vortical motions are not clear, so that in this study laboratory experiments and ...
Takeo Nakagawa, Ai Nakagawa
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Nihon Kikai Gakkai ronbunshu, 2022 In a circular cylinder blade wind turbine driven by a longitudinal vortex, the torque characteristics of the turbine are greatly affected by the flow field at the blade tip. In general, wind turbines reduce drag by making the blade tips thinner. However,
Shota NAKADA +2 more
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Energies, 2021 At present, vortex generators have been extensively used in radiators to improve the overall heat transfer performance. However, there is no research on the effect of vortex generators on the ends of motor coils.
Junjie Zhao +3 more
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Interaction of a shock with a longitudinal vortex [PDF]
Journal of Fluid Mechanics, 1997 In this paper we study the interaction of a shock with an axisymmetric longitudinal vortex. A linearized analysis for small vortex strength is performed, and compared with results from a high-order axisymmetric shock-fitted Euler solution. It is confirmed that for weak vortices, predictions from linear theory agree well with results from ...
Erlebacher, G. +2 more
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Manipulation of Energy Flow with X-Type Vortex
Photonics, 2022 In this study, a new method for manipulating energy flow in a 3D vector field is proposed. In this method, an azimuthally-polarized beam with a noncanonical vortex, the X-type vortex, is focused in a high-numerical aperture system.
Han Zhang +3 more
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Longitudinal and transverse noise in a moving vortex lattice [PDF]
Physical Review B, 2005 accepted for publication in Phys Rev ...
Scola, J. +3 more
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Nihon Kikai Gakkai ronbunshu, 2022 A prediction model of the fluid force on a cylindrical blade driven by the Necklace vortex is developed and verified by experiments when the yaw angle is given.
Shota NAKADA +3 more
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A Three-Dimensional Body Force Modeling of Fans in Windmilling Condition and Its Application
Aerospace, 2023 To investigate the aerodynamic characteristics of the fan in windmilling conditions, a new body force model with the fan rotational speed prediction model was developed.
Qingguo Kong, Wei Jia
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Development of circular cylinder blade wind turbine driven by longitudinal vortex
Nihon Kikai Gakkai ronbunshu, 2021 It is known that the longitudinal vortex alternately and periodically forms diagonally backward of the upstream cylinder of the cruciform system consisted of the upstream cylinder and the downstream strip-plate and causes the strong periodic lift force ...
Kasumi SAKAMOTO +3 more
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Nihon Kikai Gakkai ronbunshu, 2021 The effects of the configurations and structural parameters of the cylinder blade wind turbine driven by the steady lift force of the longitudinal vortex on its rotation and drag force characteristics were investigated.
Kasumi SAKAMOTO +2 more
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