Results 61 to 70 of about 92,913 (309)

Study of Sweep and Induced Dihedral Effects in Subsonic Axial Flow Compressor Passages—Part II: Detailed Study of the Effects on Tip Leakage Phenomena

open access: yesInternational Journal of Rotating Machinery, 2010
This article presents the detailed study of rotor tip leakage related phenomena in a low speed axial compressor rotor passages for three sweep configurations [Unswept (UNS), Tip Chordline Swept (TCS) and Axially Swept (AXS)].
P. V. Ramakrishna, M. Govardhan
doaj   +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

An Ultrafast Self‐Gelling Versatile Hydrogel for Rapid Infected Burn Wound Repair in Military Medicine

open access: yesAdvanced Functional Materials, EarlyView.
A self‐gelling PG@PAC (POD/Gel‐CDH@PA/CHX) powder is developed for infected burn care in austere settings. Upon contact with wound exudate, it instantly forms an adhesive hydrogel, providing simultaneous hemostasis, broad‐spectrum antibacterial activity, reactive oxygen species scavenging, and immunomodulation. In a murine model of S.
Liping Zhang   +14 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

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

Conductive Bonding and System Architectures for High‐Performance Flexible Electronics

open access: yesAdvanced Functional Materials, EarlyView.
This review outlines bonding technologies and structural design strategies that support high‐performance flexible and stretchable electronics. Bonding approaches such as surface‐activated bonding and anisotropic conductive films, together with system‐level architectures including buffer layers and island‐bridge structures, possess distinct mechanical ...
Kazuma Nakajima, Kenjiro Fukuda
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  

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

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