Results 31 to 40 of about 811 (268)

New Insights into Flow for a Low-Bypass-Ratio Transonic Fan with Optimized Rotor

Energies, 2023
In this paper, a three-dimensional aerodynamics optimization system is built and applied to optimize a rotor blade to balance the conflicts between stall margin, total pressure ratio, adiabatic efficiency, and mass flow rate for the high-loading and ...
Mingjun Liu, Zhenjiu Zhang, Zhuoming Liang, Haibing Xiao, Huanlong Chen, Xianqing Yang, Changxiao Shao   +6 more
doaj   +1 more source

Numerical investigation of recess casing treatments in axial flow fans [PDF]

, 2003
T he casing treatment technique for the axial fan has never been more significant since its potential applications were recognized in gas turbines, tunnel ventilation and many other industrial applications where the axial fan would benefit from the ...
Ghila, Abdurazag M.
core  

A Dual‐Bioresponsive and Programmable Microneedle Matrix as a Bioinspired Coupler for Orchestrating Diabetic Bone Regeneration

Advanced Materials, EarlyView.
This project developed a smart bandage‐like patch (a microneedle array) for repairing diabetic bone damage. It intelligently senses signals from infection and inflammation, then releases its medicines in a specific, timed sequence: first an antibacterial agent, then an anti‐inflammatory agent, and finally growth factors.
Yu Wang, Rui Chen, Yu Chen, Haowen Lu, Yuchen Qian, Zhiheng Gao, Zheming Shen, Xiaofei Zheng, Huilin Yang, Jun Zou, Yusen Qiao   +10 more
wiley   +1 more source

Performance enhancement of an axial flow compressor using active flow control technique

Cogent Engineering
This research article focuses on improving the efficiency of an axial flow compressor stage, enhancing the stall margin, and optimizing flow parameters.
Prithesh Pinto, Srinivas G
doaj   +1 more source

Stall Margin Improvement of an Axial Flow Fan with End Wall Injection and Suction.

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1999
The experimental studies are conducted to reveal the mechanism of stall margin improvement of an axial flow fan by injection or suction from the end wall. In case of injection, the largest improvement is obtained by the injection at about 0.14∼0.21 times axial chord length downstream from leading edge.
NISHIOKA, Kiyoshi, KURODA, Hiromoto, OBATA, Shigeo, CHIMURA, Osamu   +3 more
openaire   +2 more sources

Performance Enhancement of a Transonic Axial Flow Compressor with Circumferential Casing Grooves to Improve the Stall Margin

Journal of Applied Fluid Mechanics, 2020
The stability range of the gas turbine engine compressors is being challenged in the modern days due to the intention of increasing per stage maximum loading. Casing treatment has been widely adopted as a realistic passive flow control means to improve the stall margin with a slight decrease of efficiency at the same time by various grooves of which ...
N. Ahmad, J. Bin, Z. Qun, S. Abdu Ahmad, H. Fawzy   +4 more
openaire   +2 more sources

Stall Margin Prediction and Improvement for Mixed Flow Compressors [PDF]

, 2016
RÉSUMÉ: Les instabilités aérodynamiques dans les compresseurs sous la forme du décrochage tournant (rotating stall) et du pompage (surge) sont des phénomènes connus qui limitent l'enveloppe d'opération des turbines à gaz.
Djeghri, Noureddine
core  

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

Advanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska, Kaushik Jayaram, Nicole Xu   +2 more
wiley   +1 more source

Janus‐Type Electrostatic Potential Gradient‐Activated Dynamic Zn2+‐Coordinating Nitrogen Sites in Molecularly Locked Nanocellulose Separators for Stable Zinc‐Ion Batteries

Advanced Science, EarlyView.
A multifunctional benzimidazole‐terminated CNF separator is constructed via a PEI‐mediated covalent locking strategy, generating dense zincophilic sites that accelerate Zn2+ transport and desolvation while enabling uniform Zn (002) deposition and suppressing side reactions.
Jie Liang, Shuxin Yang, Shuaiqi Zhao, Haitao Yang, Jingyuan Li, Jiaming Dong, Junwen Duan, Hao Yang, Yue Li, Yaxin Wang, Meilin Li, Ying Liu, Zhitao Shen, Rong Liu, Ruirui Cao, Fumin Li, Minshen Zhu, Yang Huang   +17 more
wiley   +1 more source

Numerical Study on the Effect of Single Shallow Circumferential Groove Casing Treatment on the Flow Field and the Stability of a Transonic Compressor

Journal of Applied Fluid Mechanics, 2017
The present research investigates the effect of the location and the width of single shallow circumferential groove casing treatment on the flow field and the stability improvement of NASA Rotor 37 utilizing the help of computational fluid dynamics.
Mohsen Agha Seyed Mirzabozorg, Mehrdad Bazazzadeh, Morteza Hamzezade   +2 more
doaj   +2 more sources