Results 91 to 100 of about 315,711 (332)

DIAGNOSIS OF STEADY-STATE CHARACTERISTICS IN LAMINAR FLOW OF FLUIDS

open access: yesRudarsko-geološko-naftni Zbornik
Laminar flow of fluids is one of the most common forms of motion in oilfield practice. In such a flow regime of fluid, the determination of velocity-flow rate performance which takes into account the rheological properties of the fluid is of great ...
Gafar Ismayilov   +2 more
doaj   +1 more source

Laminar Flow in a Corrugated Pipe

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1979
An analysis is made of steady laminar flow in pipes with axially symmetric and non-symmetric wavy walls. Secondary flow patterns and friction factors are obtained for the case of small amplitude waviness. When kRe (k: the pipe wall wave number, Re: Reynolds number) is large, the adaptation of wall waviness to secondary flow is delayed due to the ...
Hiroshi Ohnishi   +3 more
openaire   +4 more sources

Additional Findings from the Common Research Model Natural Laminar Flow Wind Tunnel Test [PDF]

open access: yes
An experimental investigation of the Common Research Model with Natural Laminar Flow (CRM-NLF) took place in the National Transonic Facility (NTF) at the NASA Langley Research Center in 2018. The 5.2% scale semispan model was designed using a new natural
Campbell, Richard L.   +2 more
core   +1 more source

Surface Wrinkling of Plasma‐Exposed PDMS is Caused by Water Vapor Sorption: An Optical Environmental Sensor

open access: yesAdvanced Functional Materials, EarlyView.
Wrinkling of soft materials, such as polydimethylsiloxane (PDMS), underpins a myriad of technologies. Plasma‐oxidation of PDMS induces spontaneous wrinkling, which is canonically attributed to thermal expansion‐contraction of bilayers. Employing experiments and modelling, it is demonstrated that sorption of water vapor is instead responsible for ...
Zain Ahmad   +8 more
wiley   +1 more source

On the existence of steady periodic capillary-gravity stratified water waves [PDF]

open access: yes, 2013
We prove the existence of small steady periodic capillary-gravity water waves for general stratified flows, where we allow for stagnation points in the flow.
Henry, David, Matioc, Bogdan-Vasile
core   +1 more source

Enhancing Mechanical Deformability of Rigid Conjugated Polymers through Functional Additive‐Induced Persistence Length Modulation

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates a molecular strategy to enhance the stretchability of conjugated polymers by incorporating plasticizing molecular additives (PMAs). PMAs reduce the persistence length and promote chain entanglement, enabling deformable thin films with preserved electrical performance. A systematic analysis combining rheology, neutron scattering,
Sein Chung   +11 more
wiley   +1 more source

Mesh Twisting Technique for Swirl Induced Laminar Flow Used to Determine a Desired Blade Shape

open access: yesApplied Sciences, 2018
Swirling flow has been shown to increase heat transfer in heat exchangers. However, producing swirl while not presenting a severe pressure drop can be a challenge.
Ásdís Helgadóttir   +3 more
doaj   +1 more source

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