Results 11 to 20 of about 116,310 (262)

Numerical Analysis of the Effect of Flexibility on the Propulsive Performance of a Heaving Hydrofoil Undergoing Sinusoidal and Non-Sinusoidal Motions

Polish Maritime Research, 2021
Abstract Numerical simulations of fluid-structure interaction (FSI) on an elastic foil heaving with constant amplitude in freestream flow are carried out at a low Reynolds number of 20,000. The commercial software STAR-CCM+ is employed to solve the flow field and the large-scale passive deformation of the structure.
Li Fengkun, Yu Pengyao, Wang Qiang, Li Guangzhao, Wu Xiangcheng   +4 more
openaire   +2 more sources

Directed motion of liquid crystal skyrmions with oscillating fields

New Journal of Physics, 2022
Using continuum simulations, we show that under a sinusoidal electric field, liquid crystal skyrmions undergo periodic shape oscillations which produce controlled directed motion. The speed of the skyrmion is non-monotonic in the frequency of the applied
A Duzgun, C Nisoli, C J O Reichhardt, C Reichhardt   +3 more
doaj   +1 more source

Bifurcation study on fractional non-smooth oscillator containing clearance constraints

Journal of Low Frequency Noise, Vibration and Active Control, 2021
Bifurcation characteristics of a fractional non-smooth oscillator containing clearance constraints under sinusoidal excitation are investigated. First, the bifurcation response equation of the fractional non-smooth system is obtained via the K–B method ...
Jun Wang, Yongjun Shen, Shaopu Yang, Jianchao Zhang   +3 more
doaj   +1 more source

Comparison of Forced Convective Heat-Transfer Enhancement of Conventional and Thin Plate-Fin Heat Sinks under Sinusoidal Vibration

Applied Sciences, 2023
Applying sinusoidal vibration to heat sinks has proven to be a promising technique for improving heat transfer by disrupting the thermal boundary layer. However, applying sinusoidal vibration to the base of thin plate-fin heat sinks can cause a flapping ...
Ambagaha Hewage Dona Kalpani Rasangika, Mohammad Shakir Nasif, Rafat Al-Waked   +2 more
doaj   +1 more source

Motion stability analysis of non-sinusoidal oscillation of mold driven by servomotor

Chinese Journal of Mechanical Engineering, 2015
The investments of the electro-hydraulic servo system of the mold non-sinusoidal oscillator are great, the modification ratio of the mechanical type is unable to be adjusted online, and some continuous casters suffer from server resonance during the casting.
Yunfeng Yao, Junxia Li, Yiming Fang
openaire   +1 more source

Maximum of Dyson Brownian motion and non-colliding systems with a boundary [PDF]

, 2009
We prove an equality-in-law relating the maximum of GUE Dyson's Brownian motion and the non-colliding systems with a wall. This generalizes the well known relation between the maximum of a Brownian motion and a reflected Brownian ...
Warren, Jon, Ferrari, Patrik L., Sasamoto, Tomohiro, Borodin, Alexei, Prähofer, Michael   +4 more
core   +1 more source

Unaffected perceptual thresholds for biological and non-biological form-from-motion perception in autism spectrum conditions [PDF]

, 2010
Background: Perception of biological motion is linked to the action perception system in the human brain, abnormalities within which have been suggested to underlie impairments in social domains observed in autism spectrum conditions (ASC).
Blakemore, SJ, Ayse Pinar Saygin, Cook, J., Blakemore, S. J., Saygin, A. P., Cook Jennifer, Cook, Jennifer, Blakemore, S, Sarah-Jayne Blakemore, Blakemore, Sarah-Jayne, Saygin Ayse Pinar, Cook, J. L., Jennifer Cook, Saygin, Ayse Pinar, Blakemore, S.J., Cook, J, Saygin, AP, Saygin, A.P., Cook, JH, Blakemore Sarah-Jayne, Cook, Jennifer; id_orcid   +20 more
core   +1 more source

Comparison of different pressure waveforms for heat transfer performance of oscillating flow in a circular cylinder

Engineering Science and Technology, an International Journal, 2016
In the present investigation, an oscillating motion of unsteady Burger's fluid in a circular cylinder was modeled with different pressure waveforms. Three different waveforms are considered: the case of a trapezoidal, triangular and sinusoidal waveform ...
M. Abdulhameed, Dumitru Vieru, Sharidan Shafie   +2 more
doaj   +1 more source

A multisine approach for trajectory optimization based on information gain. [PDF]

, 2002
This paper presents amultisine approach for trajectory optimization based on information gain, with distance and orientation sensing to knownbeacons. It addresses the problem of active sensing, i.e. the selection of a robot motion or sequence of motions,
J. De Schutter, Mihaylova, L, Mihaylova, Lyudmila, De Schutter, J, Mihaylova, Ludmila, Bruyninckx, H, L. Mihaylova, H. Bruyninckx, De Schutter, Joris, Bruyninckx, Herman   +9 more
core   +1 more source

Influence of the Dynamic Motion of a Splash-Lubricated Gearbox on Churning Power Losses

Energies, 2019
To investigate the influence of the dynamic motion of a gearbox on lubricating flow field and churning power losses under splash lubrication, a computational fluid dynamics (CFD) method based on a combination of the fluid of volume (VOF) method and ...
Xiaozhou Hu, Pingping Li, Minggui Wu
doaj   +1 more source