Results 61 to 70 of about 497,918 (226)

Finite-temperature Wigner solid and other phases of ripplonic polarons on a helium film

open access: yes, 2016
Electrons on liquid helium can form different phases depending on density, and temperature. Also the electron-ripplon coupling strength influences the phase diagram, through the formation of so-called "ripplonic polarons", that change how electrons are ...
Klimin, S. N.   +3 more
core   +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 ...
Qiping Chen   +4 more
semanticscholar   +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

Effects of finite strains in fully coupled 3D geomechanical simulations [PDF]

open access: yes, 2019
Numerical modeling of geomechanical phenomena and geo-engineering problems often involves complex issues related to several variables and corresponding coupling effects.
De Marchi, Nico   +2 more
core   +1 more source

Fluid-Structure Interaction Simulation of a Coriolis Mass Flowmeter using a Lattice Boltzmann Method [PDF]

open access: yes, 2020
In this paper we use a fluid-structure interaction (FSI) approach to simulate a Coriolis mass flowmeter (CMF). The fluid dynamics are calculated by the open source framework OpenLB, based on the lattice Boltzmann method (LBM). For the structural dynamics
Haussmann, Marc   +4 more
core   +3 more sources

Research on aerodynamic optimization of high-speed train’s slipstream

open access: yesEngineering Applications of Computational Fluid Mechanics, 2020
Slipstream severely affects the safety of trackside workers and equipment. With use of profile superimposition method and vehicle modeling method, parametrization of the whole train is carried out. Then, a slipstream optimization study has been performed,
Zhenxu Sun, Shuanbao Yao, Guowei Yang
doaj   +1 more source

Analysis of the Transonic Buffet Characteristics of Stationary and Pitching OAT15A Airfoil

open access: yesApplied Sciences
Transonic buffet flow is a classical complex and unstable flow that has a negative effect on aircraft fly safety. Therefore, it is crucial to study the unsteady characteristics of buffet flow. The numerical analysis method is very useful in achieving the
Xueyuan Nie   +5 more
doaj   +1 more source

Robin Based Semi-Implicit Coupling in Fluid-Structure Interaction: Stability Analysis and Numerics [PDF]

open access: yes, 2009
International audienceIn this report, we propose a semi-implicit coupling scheme for the numerical simulation of fluid-structure interaction systems involving a viscous incompressible fluid. The scheme is stable irrespectively of the so-called added-mass
Astorino, Matteo   +2 more
core   +4 more sources

Data-Driven Adaptive Control of Transonic Buffet via Localized Morphing Skin

open access: yesAerospace
Transonic shock buffet, characterized by large-amplitude self-sustained shock oscillations arising from shock wave/boundary layer interactions, poses significant challenges to aircraft handling quality and structural integrity.
Yuchen Zhang   +5 more
doaj   +1 more source

Spectral element modeling of three dimensional wave propagation in a self-gravitating Earth with an arbitrarily stratified outer core [PDF]

open access: yes, 2003
This paper deals with the spectral element modeling of seismic wave propagation at the global scale. Two aspects relevant to low-frequency studies are particularly emphasized.
Bermúdez   +25 more
core   +3 more sources

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