Results 51 to 60 of about 3,742,515 (329)

Surrogate Based Optimization of Aerodynamic Noise for Streamlined Shape of High Speed Trains

open access: yesApplied Sciences, 2017
Aerodynamic noise increases with the sixth power of the running speed. As the speed increases, aerodynamic noise becomes predominant and begins to be the main noise source at a certain high speed.
Zhenxu Sun, Ye Zhang, Guowei Yang
doaj   +1 more source

Novel immersed boundary method for direct numerical simulations of solid-fluid flows [PDF]

open access: yes, 2015
Solid-fluid two-phase flows, where the solid volume fraction is large either by geometry or by population (as in slurry flows), are ubiquitous in nature and industry.
Shui, Pei
core   +2 more sources

SPH Simulation of Gear Meshing with Lubricating Fluid–Solid Coupling and Heat-Transfer Process

open access: yesProcesses
This study employs the meshfree Smoothed Particle Hydrodynamics (SPH) method to simulate the fluid–solid coupling process of gear meshing rotation with lubricating oil or oil jet lubrication fluids, considering the heat-transfer process under preset ...
Chun-Xiang Shi   +6 more
semanticscholar   +1 more source

Fluid-solid Coupling Analysis of the Pressure Expansion of Packers

open access: yesJournal of Physics: Conference Series, 2020
Abstract For the packers, the pressure expansion process and differential pressure loading process have been simulated by the fluid-solid coupling finite element method. The results show that under the internal pressure load of 10MPa at both ends of the hydraulic oil, the structure of the packer can be fully expanded, and the simulated ...
Lanwen Wang, Junxu Ge, Xuanyu Sheng
openaire   +1 more source

Study on dynamic characteristic analysis of vehicle shock absorbers based on bidirectional fluid–solid coupling

open access: yesEngineering Applications of Computational Fluid Mechanics, 2021
To design a high-quality vehicle shock absorber, the internal structure of the piston assembly of a shock absorber is analyzed in this study. Using the fluid–solid coupling method, a high-precision flow grid model and a solid finite element model of the ...
Qi-Ping Chen   +4 more
semanticscholar   +1 more source

Basis Enrichment and Solid-Fluid Coupling for Model-Reduced Fluid Simulation [PDF]

open access: yes, 2015
We present several enhancements to model-reduced fluid simulation that allow improved simulation bases and twoway solid-fluid coupling. Specifically, we present a basis enrichment scheme that allows us to combine data driven or artistically derived bases
Dan Gerszewski   +7 more
core   +2 more sources

Investigating transcription factor dynamics in health and disease using FRAP

open access: yesFEBS Letters, EarlyView.
FRAP analysis of GFP‐tagged transcription factors reveals how molecular mobility and target engagement change in response to drug treatment. By combining live‐cell imaging, quantitative model fitting, and statistical analysis, this approach uncovers transcription factor dynamics linked to disease mechanisms, providing a powerful framework for ...
Kannan Govindaraj   +3 more
wiley   +1 more source

Analysis of Aerodynamic Noise Characteristics of High-Speed Train Pantograph with Different Installation Bases

open access: yesApplied Sciences, 2019
The high-speed-train pantograph is a complex structure that consists of different rod-shaped and rectangular surfaces. Flow phenomena around the pantograph are complicated and can cause a large proportion of aerodynamic noise, which is one of the main ...
Yongfang Yao   +4 more
doaj   +1 more source

Response of a plate in turbulent channel flow: Analysis of fluid–solid coupling

open access: yesJournal of Fluids and Structures, 2021
The paper performs simulation of a rectangular plate excited by turbulent channel flow at friction Reynolds numbers of 180 and 400. The fluid-structure interaction is assumed to be one-way coupled, i.e, the fluid affects the solid and not vice versa. We solve the incompressible Navier Stokes equations using finite volume direct numerical simulation in ...
Anantharamu, Sreevatsa, Mahesh, Krishnan
openaire   +3 more sources

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

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