Results 11 to 20 of about 1,118,588 (301)

Flow-Induced Motion and Energy Conversion of the Cir-T-Att Oscillator in a Flow Field with a High Reynolds Number

Journal of Marine Science and Engineering, 2023
The present study aims to systematically investigate the effects of a high Reynolds number on the flow-induced motion and energy conversion of the Cir-T-Att oscillator. Experiments are conducted in six Reynolds number ranges (2.89 × 104~6.51 × 104 < Re <
Danjie Ran, Jijian Lian, Xiang Yan, Fang Liu, Nan Shao, Xu Yang, Lingfan Li   +6 more
doaj   +1 more source

Study of Effect of Convergence Section Geometric on the Performance of a Sonic Nozzle [PDF]

Journal of Applied Fluid Mechanics
Critical flow Venturi nozzles (toroidal, cylindrical, convergent–divergent, or    C–D) nozzles) have discharge coefficients predicted through numerical and experimental investigations.
F. A. Kassem, A. A. Zahran, M. Adel
doaj   +1 more source

Large Scale Features of Rotating Forced Turbulence [PDF]

, 2003
Large scale features of a randomly isotropically forced incompressible and unbounded rotating fluid are examined in perturbation theory. At first order in both the random force amplitude and the angular velocity we find two types of modifications to the ...
Gaite, Jose, Hochberg, David, Molina-Paris, Carmen   +2 more
core   +2 more sources

Gravity-mediated holography in fluid dynamics [PDF]

, 2013
For any spherically symmetric black hole spacetime with an ideal fluid source, we establish a dual fluid system on a hypersurface near the black hole horizon.
Wu, Bin, Zhao, Liu
core   +1 more source

Clarification of Unsteady Fluid Forces Acting on Limbs in Swimming Using an Underwater Robot Arm

Journal of Fluid Science and Technology, 2012
The objective of this study was to clarify the unsteady characteristics of the fluid forces acting on limbs during swimming. For this objective, an underwater robot arm was developed in this paper.
Motomu NAKASHIMA, Akemi TAKAHASHI
doaj   +3 more sources

Flow Behavior Caused by Air Permeability of Ski Jumping Suit Fabric

Proceedings, 2020
The purpose of this study was to investigate the effect of the air permeability of ski jumping suit fabric on aerodynamic characteristics. In the study, four types of fabric with different air permeabilities were installed onto a fabric-clothed elliptic ...
Yuki Kataoka, Hiroaki Hasegawa, Masahide Murakami, Kazuya Seo, Shigeru Obayashi   +4 more
doaj   +1 more source

The Mean-Field Limit for Solid Particles in a Navier-Stokes Flow [PDF]

, 2007
We propose a mathematical derivation of Brinkman's force for a cloud of particles immersed in an incompressible fluid. Our starting point is the Stokes or steady Navier-Stokes equations set in a bounded domain with the disjoint union of N balls of radius
C. Baranger, F. Feuillebois, François Golse, G. Allaire, G.K. Batchelor, J. Rubinstein, J. Rubinstein, L.D. Landau, Laurent Desvillettes, O.A. Ladyzhenskaya, P.-E. Jabin, P.-E. Jabin, R.E. Caflisch, R.E. Caflisch, V.A. L’vov, Valeria Ricci   +15 more
core   +3 more sources

Development of small-size and light-weight aerodynamic brake for high-speed railway

Nihon Kikai Gakkai ronbunshu, 2019
To shorten the stopping distance of the high-speed trains in case of emergency such as a huge earthquake, the author developed the small-size and light-weight aerodynamic braking device.
Hajime TAKAMI
doaj   +1 more source

Evaluation for particles capturing in magnetic separation using magnetic particles movement simulation (Effects of number of magnets, magnet arrangements, and magnetic coercive force)

Nihon Kikai Gakkai ronbunshu, 2014
An analysis program of predicting the movement of magnetic particles in flow, gravity, and magnetic fields was applied for magnetic separation process in a small vessel of an in-vitro diagnostic system.
Toru INABA, Shinya MATSUOKA, Yoshihiro YAMASHITA, Taku SAKAZUME   +3 more
doaj   +1 more source

Numerical Analysis of Flow Characteristics in Impeller-Guide Vane Hydraulic Coupling Zone of an Axial-Flow Pump as Turbine Device

Journal of Marine Science and Engineering, 2023
An axial-flow pump as a turbine (PAT), as compared to the conventional Francis turbine, has the advantages of not being restricted by the terrain and having lower cost to reverse the pump as a turbine for power generation.
Fan Yang, Zhongbin Li, Yuting Lv, Jindong Li, Guangxin Zhou, Ahmed Nasr   +5 more
doaj   +1 more source