Results 51 to 60 of about 42,197 (166)

Measurement of Heat Flow Transmitted through a Stacked-Screen Regenerator of Thermoacoustic Engine

open access: yesApplied Sciences, 2017
A stacked-screen regenerator is a key component in a thermoacoustic Stirling engine. Therefore, the choice of suitable mesh screens is important in the engine design.
Shu Han Hsu, Tetsushi Biwa
doaj   +1 more source

Numerical Predictions of Early Stage Turbulence in Oscillatory Flow across Parallel-Plate Heat Exchangers of a Thermoacoustic System

open access: yesApplied Sciences, 2017
This work focuses on the predictions of turbulent transition in oscillatory flow subjected to temperature gradients, which often occurs within heat exchangers of thermoacoustic devices.
Fatimah A. Z. Mohd Saat   +1 more
doaj   +1 more source

Instabilities in the oscillatory flow of a complex fluid

open access: yesPhysical Review E, 2007
The dynamics of a fluid in a vertical tube, subjected to an oscillatory pressure gradient, is studied experimentally for both a Newtonian and a viscoelastic shear-thinning fluid. Particle image velocimetry is used to determine the two-dimensional velocity fields in the vertical plane of the tube axis, in a range of driving amplitudes from 0.8 to 2.5 mm
Torralba, M   +5 more
openaire   +3 more sources

Pressure-Driven Thermal Slip Flow in the Elliptical Channel with Radial Oscillatory Wall

open access: yesJournal of Applied Mathematics, 2020
This paper is aimed at presenting thermal slip flow driven by oscillatory pressure gradient in a deformable microchannel of elliptic cross-section. The fully developed flow of Newtonian fluid is considered, and Navier slip is applied on the boundary. The
Nattawan Chuchalerm   +2 more
doaj   +1 more source

NUMERICAL SIMULATION OF FLUID FLOW BEHAVIOUR ON SCALE UP OF OSCILLATORY BAFFLED COLUMN [PDF]

open access: yesJournal of Engineering Science and Technology, 2012
The fluid dynamics of oscillatory flow in a baffled column of 145 mm diameter was investigated numerically in this work. This numerical simulation was carried out by a 2D laminar unsteady solver using CFD package Fluent® 6.3. From the simulation, data on
WAH KENG SERN   +4 more
doaj  

Oscillatory flow through a convergent tube.

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1985
This paper deals with the laminar laminar oscillatory flow of an incompressible fluid through a slightly convergent tube. The velocity distributions in the convergent tube, whose convergent angles are in the range of 2-4°, are measured by a Laser Doppler Velocimeter. The flow in the convergent tube is numerically analysed by a finite difference method (
UZAWA, Kiyoshi, IKEO, Shigeru
openaire   +3 more sources

Time lag between oscillatory pressure and flow affecting accuracy of forced oscillation technique

open access: yesBioMedical Engineering OnLine, 2011
Background The forced oscillation technique (FOT) is a simple method for assessing the oscillatory mechanics of the respiratory system. The oscillatory properties, respiratory system resistance (Rrs) and reactance (Xrs), are calculated from the ...
Ohishi Junichi, Kurosawa Hajime
doaj   +1 more source

CRUD growth on fuel rod bundles under oscillatory conditions

open access: yesHe jishu
BackgroundOscillatory conditions significantly affect the thermal-hydraulic characteristics of floating reactors, leading to changes in the growth of chalk river unidentified deposit (CRUD).PurposeThis study aims to investigates CRUD growth on fuel rod ...
WANG Guolian, LIU Xiaojing, HE Hui
doaj   +1 more source

Numerical simulation of scour around circular piles due to unsteady currents and oscillatory flows

open access: yesEngineering Applications of Computational Fluid Mechanics, 2018
Numerical modeling of pile scour is performed due to the action of unsteady currents and oscillatory flow greens, using 3D Reynolds averaged Navier–Stokes (RANS) equations for the hydrodynamic description and the Exner equation for the morphological ...
Matias Quezada   +2 more
doaj   +1 more source

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