Results 31 to 40 of about 6,061 (294)

Soft Hardware, Flowing Software: Reconfigurable Microfluidics for Adaptable Chemical Computation

Advanced Materials, EarlyView.
A reconfigurable microfluidic platform based on soft, photo‐printable, and chemically erasable hydrogel structures printed and erased in situ is used to control flow routing, mixing, chemical patterning, and even chemical computing. Using hardware to control chemical computations decouples logic function from molecular composition, demonstrated via ...
Piet J. M. Swinkels, Brigitta Dúzs, Oliver Skarsetz, Kohei Nishiyama, Andreas Walther   +4 more
wiley   +1 more source

Numerical Simulation Study of a Triangular Numerical Wave Tank

Journal of Marine Science and Engineering
This study establishes a triangular numerical wave tank based on the viscous incompressible Navier–Stokes equations. The model is implemented in STAR-CCM+, employing the Reynolds-Averaged Navier–Stokes equations and the Volume of Fluid method, combined ...
Juncheng Ruan, Ji Huang, Jiewei Liao, Bo Hu, Yulin Wang   +4 more
doaj   +1 more source

Effects of Regular Waves on Propulsion Performance of Flexible Flapping Foil

Applied Sciences, 2018
The objective of the present study is to analyze the effects of waves on the propulsive performance and flow field evolution of flexible flapping foil, and then offer a way to take advantage of wave energy.
Peng Liu, Yebao Liu, Shuling Huang, Jianfeng Zhao, Yumin Su   +4 more
doaj   +1 more source

A Graphic Processing Unit–High-Order Spectral (GPU-HOS) Numerical Wave Tank for the Simulation of Directional Wave Field Evolution over a Long Time

Journal of Marine Science and Engineering, 2023
Existing numerical models for direct simulations of stochastically directional waves are limited by their computational burden, and only a few of them can be applied to modeling directional waves on account of nonlinear evolutions on large time scales ...
Zhuowei Zhou, Ningchuan Zhang
doaj   +1 more source

3D Large‐Scale Subwavelength‐Resolution Sound Sheet Tomography Based on an Active and Programmable Circular Meta‐Array

Advanced Science, EarlyView.
A programmable 2048‐element circular ultrasound array combined with a compact acoustic lens produces a thin “sound sheet” over a large field of view, and records echoes with wide angular diversity across the ring aperture. Coherence‐enhanced beamforming converts full‐matrix data into high‐contrast tomographic slices, delivering near‐diffraction‐limited
Qiu‐De Zhang, Zi‐Bin Lin, Zhuo Chen, Zhao‐Hui Liu, Jin‐Lian He, Jun‐Jie Song, Long‐Sheng Zeng, Liang Zhou, Ming‐Yue Ding, Yu‐Gui Peng, Ming Yuchi, Xue‐Feng Zhu   +11 more
wiley   +1 more source

Investigation and Optimization of Wave Suppression Baffles in Automobile Integrated Water Tanks [PDF]

Journal of Applied Fluid Mechanics
The risk of liquid agitation in pump-driven tanks within integrated tanks has significantly escalated due to the growing demands for tank integration in new-energy vehicles. In order to solve the problem of liquid sloshing in integrated tanks, this paper
F. Dong, X. Xu, W. Zhang, W. Hu, X. Cao
doaj   +1 more source

Numerical simulation analysis of liquid sloshing in tank under random excitation

Zhongguo Jianchuan Yanjiu, 2022
ObjectivesThis paper studies the transient effects, different frequencies of spectral peaks and meaningful excitation amplitudes on liquid sloshing. MethodsA numerical model is established using the computational fluid dynamics (CFD) method, and the ...
Shengchao JIANG, Bo XU, Zihao WANG
doaj   +1 more source

Linear irregular wave generation in a numerical wave tank

Applied Ocean Research, 2015
In the design of any floating or fixed marine structure, it is vital to test models in order to understand the fluid/structure interaction involved. A relatively inexpensive method, compared to physical model testing, of achieving this is to numerically model the structure and the wave conditions in a numerical wave tank.
William Finnegan, Jamie Goggins
openaire   +2 more sources

Fast random wave generation in numerical tanks [PDF]

Proceedings of the Institution of Civil Engineers - Engineering and Computational Mechanics, 2019
Generating and absorbing random waves in numerical models is a challenging problem, in particular when meaningful wave statistics should be generated to meet design sea-state requirements. The methodology presented herein allows for the generation of random wave fields (free surface elevation and velocities) to be reconstructed in time and in space by
Aggelos S. Dimakopoulos, Tristan de Lataillade, Chris E. Kees   +2 more
openaire   +1 more source

Fully non-linear simulation of second-order resonance in a three-dimensional tank using the PSME method

, 2012
Sloshing occurs when a partially filled tank is subject to external excitation. If the excitation frequency is equal to half of the second-order natural frequency obtained from the linear theory, then second-order resonance may occur.
Borthwick, Alistair G. L., Chern, Ming-Jyh, Vaziri, Nima   +2 more
core   +1 more source