Results 21 to 30 of about 12,050,971 (277)

Multiphase Actuation of AC Electrothermal Micropump

open access: yesMicromachines, 2023
Electrothermal micropumps apply an AC electric field to a conductive fluid within the range of 10 kHz–1 MHz to generate fluid flow. In this frequency range, coulombic forces dominate fluid interactions over opposing dielectric forces, resulting in high ...
Stirling Cenaiko   +2 more
doaj   +1 more source

Adaptive linear solution process for single-phase Darcy flow

open access: yesOil & Gas Science and Technology, 2020
This article presents an adaptive approach for solving linear systems arising from self-adjoint Partial Differential Equations (PDE) problems discretized by cell-centered finite volume method and stemming from single-phase flow simulations. This approach
Anciaux-Sedrakian Ani   +3 more
doaj   +1 more source

Numerical investigation of the large over-reading of Venturi flow rate in ARE of nuclear power plant

open access: yesNuclear Engineering and Technology, 2021
Venturi meter is frequently used in feed water flow control system in a nuclear power plant. Its accurate measurement plays a vital role in the safe operation of the plant.
Hong Wang   +3 more
doaj   +1 more source

Single- and Two-Phase Flow Characterization Using Optical Fiber Bragg Gratings

open access: yesSensors, 2015
Single- and two-phase flow characterization using optical fiber Bragg gratings (FBGs) is presented. The sensor unit consists of the optical fiber Bragg grating positioned transversely to the flow and fixed in the pipe walls.
Virgínia H.V. Baroncini   +3 more
doaj   +1 more source

Flow and heat transfer coupling analysis of oil-gas two-phase fluid in clearance of single screw compressor based on fuzzy curvelet finite element method

open access: yesCase Studies in Thermal Engineering, 2020
In order to analyze the flow and heat transfer coupling rules of oil-gas two-phase fluid in clearance of single screw compressor, the fuzzy curvelet finite element model is constructed based on fuzzy theory, curvelet transform and finite element method ...
Bin Zhao   +3 more
doaj   +1 more source

A review of drag reduction by additives in curved pipes for single‐phase liquid and two‐phase flows

open access: yesEngineering Reports, 2021
The effect of drag‐reducing agents (DRAs) on fluid flows in straight pipes has been well documented. Key among these is the effect of DRAs on turbulence statistics (Reynolds shear stress, turbulence intensity, streamwise and wall‐normal velocity ...
Paul O. Ayegba   +3 more
doaj   +1 more source

Analysis of a Stator-Rotor-Stator Spinning Disk Reactor in Single-Phase and Two-Phase Boiling Conditions Using a Thermo-Fluid Flow Network and CFD

open access: yesFluids, 2022
Cryogenic liquid propellants are used in liquid rocket engines to obtain high specific impulse. The flow rates are controlled by turbopumps that deliver liquid propellant to the engine at high pressure levels.
Lorenzo Mazzei   +8 more
doaj   +1 more source

POD-Galerkin Model for Incompressible Single-Phase Flow in Porous Media

open access: yesOpen Physics, 2016
Fast prediction modeling via proper orthogonal decomposition method combined with Galerkin projection is applied to incompressible single-phase fluid flow in porous media.
Wang Yi, Yu Bo, Sun Shuyu
doaj   +1 more source

A two-pressure model for slightly compressible single phase flow in bi-structured porous media [PDF]

open access: yes, 2012
Problems involving flow in porous media are ubiquitous in many natural and engineered systems. Mathematical modeling of such systems often relies on homogenization of pore-scale equations and macroscale continuum descriptions.
Davit, Yohan   +5 more
core   +1 more source

Mathematical model of the multi-channel spiral cyclone / Daugiakanalio spiralinio ciklono oro greičių tyrimas

open access: yesMokslas: Lietuvos Ateitis, 2013
The article deals with a problem of experimental investigation and numerical simulation of gas aerodynamics of a multi-channel spiral cyclone with a tangential inlet.
Justina Danilenkaitė   +2 more
doaj   +1 more source

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