Results 41 to 50 of about 497,918 (226)

Respiratory Sound Classification: From Fluid-Solid Coupling Analysis to Feature-Band Attention

open access: yesIEEE Access, 2022
Based on respiratory sound production mechanisms, we study the relationship between airflow characteristics in the bronchi and sound pressure spectrum curves to implement an end-to-end respiratory sound classification system with a feature-band attention
Fuchuan Tong   +4 more
semanticscholar   +1 more source

Data-driven rapid prediction model for aerodynamic force of high-speed train with arbitrary streamlined head

open access: yesEngineering Applications of Computational Fluid Mechanics, 2022
Due to the complicated geometric shape, it's difficult to precisely obtain the aerodynamic force of high-speed trains. Taking numerical and experimental data as the training data, the present work proposed a data-driven rapid prediction model to solve ...
Dawei Chen   +7 more
doaj   +1 more source

Dynamic Characteristic Analysis of Centrifugal Pump Impeller Based on Fluid-Solid Coupling

open access: yesJournal of Marine Science and Engineering, 2022
Purpose: Centrifugal pumps are prone to vibration problems during operation due to poor dynamic characteristics of its impellers that serve as the only running parts of such devices; the dynamic characteristics of the impeller during operation are the ...
Yufang Li   +4 more
semanticscholar   +1 more source

Research on the Fluid-solid Coupling of Wind Turbine [PDF]

open access: yesAdvances in Engineering Research, 2015
Researching on fluid-solid coupling problem of wind turbine can help improve the optimization of global structure of wind turbine and improve the level of the blades design, which has been one of the current research hotspots and difficulties in the field of wind turbine design.
Yongqing Yin   +5 more
openaire   +1 more source

Fast and versatile fluid-solid coupling for turbulent flow simulation

open access: yesACM Transactions on Graphics, 2021
The intricate motions and complex vortical structures generated by the interaction between fluids and solids are visually fascinating. However, reproducing such a two-way coupling between thin objects and turbulent fluids numerically is notoriously ...
C. Lyu, Wei Li, M. Desbrun, Xiaopei Liu
semanticscholar   +1 more source

Supercavitating flow around high-speed underwater projectile near free surface induced by air entrainment

open access: yesAIP Advances, 2018
Cavitating flow near free surface is a complicated issue and may provide new inspiration on high-speed surface cruising. This study observes stable supercavitating flow as a new phenomenon in a launch experiment of axisymmetric projectile when the upper ...
Chang Xu   +5 more
doaj   +1 more source

Practical expressions for the internal energy and pressure of Yukawa fluids [PDF]

open access: yes, 2015
Simple practical expressions are put forward, which allow to estimate thermodynamic properties of Yukawa fluids in a wide range of coupling, up to the fluid-solid phase transition.
Khrapak, Sergey, Thomas, Hubertus
core   +2 more sources

Plunge Pool Rock Scour Assessment by Fluid-Solid Coupling

open access: yes, 2022
This paper presents a novel approach for detailed 2D numerical assessment of rock scour in plunge pools or unlined channels downstream of hydraulic structures. The approach is based on an automated coupling between the 3D hydraulics and the turbulence of an impacting jet (or any other turbulent flow environment) and the detailed bathymetric evolution ...
Bollaert, E. F. R., Grünzner, M.
openaire   +3 more sources

Fluid-solid Coupling Analysis of Riser based on CFD

open access: yesScientific Journal of Technology, 2023
The riser is the only channel connecting the submarine pipeline oil gas and offshore platform structures, offshore oil and gas development and utilization of lifelines, offshore pipeline system is the weakest vulnerable link. Due to its long and thin structure, the marine riser is easy to failure and failure in the complex working conditions.
Haifeng Ma   +4 more
openaire   +1 more source

Analytical solutions for sediment concentration in waves based on linear diffusivity

open access: yesTheoretical and Applied Mechanics Letters, 2021
Two kinds of analytical solutions are derived through Laplace transform for the equation that governs wave-induced suspended sediment concentration with linear sediment diffusivity under two kinds of bottom boundary conditions, namely the reference ...
Yiqin Xie   +4 more
doaj   +1 more source

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