Results 11 to 20 of about 418,767 (267)

Applying Simultaneously Monte Carlo Method and Dimension Reduction in Calculating the Reliability of Water Column Separation Phenomenon [PDF]

open access: yesمجله مدل سازی در مهندسی
Network reliability is one of the main effective indicators for designing and managing water distribution networks in normal or critical operating conditions. Occurrence of transient flow and sometimes the water column separation phenomenon is one of the
Mehdi Azhdary Moghaddam   +3 more
doaj   +1 more source

Transient turbulence in Taylor-Couette flow [PDF]

open access: yesPhysical Review E, 2010
Recent studies have brought into question the view that at sufficiently high Reynolds number turbulence is an asymptotic state. We present the first direct observation of the decay of turbulent states in Taylor-Couette flow with lifetimes spanning five orders of magnitude. We also show that there is a regime where Taylor-Couette flow shares many of the
Borrero-Echeverry, Daniel   +2 more
openaire   +3 more sources

Transient growth of Ekman-Couette flow [PDF]

open access: yesPhysical Review E, 2014
7 pages, 9 ...
Shi, Liang   +2 more
openaire   +4 more sources

Caracterización y mitigación del flujo intermitente en sistemas de recolección multifásicos bajo condiciones dinámicas

open access: yesRevista Fuentes El Reventón Energético, 2015
Challenges associated to multiphasic fl ow are as old as the petroleum industry itself. in many oil and gas fields with multiphasic fl ow lines, production instability due to severe slugging is their main fl ow assurance issue.
Gustavo Andrés Valle Tamayo   +2 more
doaj   +1 more source

Transient growth in Taylor–Couette flow [PDF]

open access: yesPhysics of Fluids, 2002
Transient growth due to non-normality is investigated for the Taylor–Couette problem with counter-rotating cylinders as a function of aspect ratio η and Reynolds number Re. For all Re⩽500, transient growth is enhanced by curvature, i.e., is greater for η<1 than for η=1, the plane Couette limit.
Hristova, Hristina   +3 more
openaire   +3 more sources

Termite-inspired metamaterials for flow-active building envelopes

open access: yesFrontiers in Materials, 2023
In this article we investigate the performative potential of reticulated tunnel networks to act as drivers for selective airflows in building envelopes and thereby facilitate semi-passive climate regulation.
David Andréen, Rupert Soar
doaj   +1 more source

Application of Spatial Time Domain Reflectometry for Investigating Moisture Content Dynamics in Unsaturated Loamy Sand for Gravitational Drainage

open access: yesApplied Sciences, 2021
The strength of unsaturated soil is defined by the soil water retention behavior and soil suction acting inside the soil matrix. In order to obtain the suction and moisture profile in the vadose zone, specific measuring techniques are needed. Time domain
Guanxi Yan   +5 more
doaj   +1 more source

Modelling transient pipe flow with cavitation and frequency dependent friction. Part II. Friction and numerical-experimental validation [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2015
Modelling of time-depended hydraulic friction is not an easy issue. As numerous studies have shown, wall shear stress in the pipe can be determined as a sum of the quasi-steady and time-dependent expressions.
Kamil Urbanowicz
doaj   +1 more source

Application of MacCormack algorithm in transient flow simulation of long-distance pipeline

open access: yesYou-qi chuyun, 2020
To improve the simulation precision and speed of long-distance pipelines, the simulation model of hydraulic transient flow in long-distance liquid pipelines was established based on the basic principle of MacCormack format and flow equation.Take one ...
Yong WANG, Li WANG, Heng HU, Suwen WANG
doaj   +1 more source

Investigation of Transient Flow in Branching Pipes [PDF]

open access: yesعلوم و مهندسی آبیاری, 2015
Any change in the pipe discharge, caused by valve closure or shutting off the pump, results in fluctuations in velocity and pressure of the flow; which develops transient flow in the water conveyance system.
Hamid Taebi, Manoochehr FathiMoghadam
doaj  

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