Results 61 to 70 of about 94,894 (308)

Effect of Film Position on the Flow and Heat Transfer Characteristics of Full-Ribbed Rotor Tip

open access: yesFrontiers in Energy Research, 2022
This article numerically studied the flow and heat transfer characteristics of the full-ribbed fluted tip of a rotor with four types of distribution of cooling films, namely, the mid-arc uniform film at the bottom of the groove, the uniform film on full ...
Haimeng Zhou   +4 more
doaj   +1 more source

Numerical analysis of secondary flow topologies of low-speed axial fans from compressor to load-controlled windmill [PDF]

open access: yes, 2017
mode to loaded windmill. A first objective is to identify generic patterns of rotor separation topology at windmill and bring light on the mechanisms responsible for it.
Binder, Nicolas   +4 more
core   +1 more source

Control of Tip Leakage Flow in Axial Flow Compressor Cascade by Suction on the Blade Tip

open access: yesJournal of Applied Fluid Mechanics, 2018
One of the important ways of improving axial compressor performance is to control the tip leakage flow near the endwall region. Numerical computations were conducted to investigate the impact of blade tip suction on the axial compressor cascade performance in current paper.
X. Mao, B. Liu, T. Tang
openaire   +2 more sources

Peptide Sequencing With Single Acid Resolution Using a Sub‐Nanometer Diameter Pore

open access: yesAdvanced Functional Materials, EarlyView.
To sequence a single molecule of Aβ1−42–sodium dodecyl sulfate (SDS), the aggregate is forced through a sub‐nanopore 0.4 nm in diameter spanning a 4.0 nm thick membrane. The figure is a visual molecular dynamics (VMD) snapshot depicting the translocation of Aβ1−42–SDS through the pore; only the peptide, the SDS, the Na+ (yellow/green) and Cl− (cyan ...
Apurba Paul   +8 more
wiley   +1 more source

Analysis of hydrofoil tip leakage vortex dynamic characteristics

open access: yesAdvances in Mechanical Engineering
The clearance exists inevitably between the turbine guide vanes and the fixed wall, and the resulting tip leakage vortex leads to the increase of hydraulic loss.
Yuanyuan Gang   +6 more
doaj   +1 more source

Improved graphene blisters by ultrahigh pressure sealing

open access: yes, 2020
Graphene is a very attractive material for nanomechanical devices and membrane applications. Graphene blisters based on silicon oxide micro-cavities are a simple but relevant example of nanoactuators.
Cristina Gómez-Navarro   +8 more
core   +1 more source

Fluid Flow Equations for Rotordynamic Flows in Seals and Leakage Paths [PDF]

open access: yes, 2001
Fluid-induced rotordynamic forces produced by the fluid in an annular seal or in the leakage passage surrounding the shroud of a pump or turbine, are known to contribute substantially to the potential excitation forces acting on the rotor.
Brennen, C. E., Hsu, Y.
core   +1 more source

Two‐Dimensional Materials as a Multiproperty Sensing Platform

open access: yesAdvanced Functional Materials, EarlyView.
Various sensing modalities enabled and/or enhanced by two‐dimensional (2D) materials are reviewed. The domains considered for sensing include: 1) optoelectronics, 2) quantum defects, 3) scanning probe microscopy, 4) nanomechanics, and 5) bio‐ and chemosensing.
Dipankar Jana   +11 more
wiley   +1 more source

Heat transfer in the tip region of a rotor blade simulator [PDF]

open access: yes
In gas turbines, the blades of axial turbine stages rotate in close proximity to a stationary peripheral wall. Differential expansion of the turbine wheel, blades, and the shroud causes variations in the size of the clearance gap between blade tip and ...
Chyu, M. K., Metzger, D. E., Moon, H. K.
core   +4 more sources

Numerical Research on the Impact of Axial Position of Endwall Suction Slot on Tip Leakage Flow

open access: yesJournal of Applied Fluid Mechanics, 2020
In order to reduce the adverse effect of the tip leakage flow of cantilever stator on compressor performance, the impact of the axial position of endwall streamwise suction slot on tip leakage flow was numerically studied.
B. Zhang, B. Liu, A. Rehman, X. Sun
doaj  

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