Results 41 to 50 of about 3,742,515 (329)

Hybrid molecular and continuum fluid dynamics models for micro and nanofluidic flows [PDF]

open access: yes, 2009
From molecules to living organisms and from atoms to planets a variety of physical phe- nomena operate at different temporal and spatial scales. Understanding the nature of those phenomena is crucial for advancing new technologies in many disciplines ...
Asproulis, N.
core   +7 more sources

A Contact Proxy Splitting Method for Lagrangian Solid-Fluid Coupling [PDF]

open access: yes, 2023
Accurate and robust simulation of solid and fluid dynamics with their interactions is non-trivial in computer graphics. In this thesis, we present a robust and efficient method for simulating Lagrangian solid-fluid coupling based on a new operator ...
Xie, Tianyi
core   +2 more sources

Rapid evaluation of capillary pressure and relative permeability for oil–water flow in tight sandstone based on a physics-informed neural network

open access: yesJournal of Petroleum Exploration and Production Technology, 2023
Efficient and accurate evaluation of capillary pressure and relative permeability of oil–water flow in tight sandstone with limited routinely obtainable parameters is a crucial problem in tight oil reservoir modeling and petroleum engineering. Due to the
Lili Ji   +6 more
doaj   +1 more source

Development and Application of Analogous Materials for Fluid-Solid Coupling Physical Model Test

open access: yesAdvances in Materials Science and Engineering, 2022
The coupling effect between the stress field formed by rock mass and the seepage field formed by groundwater has an important impact on the stability of underground engineering.
Mingyang Ren   +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

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

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

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

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

Fluid-solid-thermal coupling analysis of an underwater valve

open access: yesJournal of Physics: Conference Series, 2021
Abstract An underwater valve at 3000 meters underwater was chosen as the research object, aiming at obtaining the force characteristics of the underwater valve under high pressure and large temperature difference in the deep sea. The principle of fluid-solid-thermal three-field coupling was analyzed by using Fluent and ANSYS Workbench ...
Jiazhen Han   +3 more
openaire   +1 more source

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