Results 51 to 60 of about 13,520 (258)

Investigation on the Mechanism and Parametric Description of Non-Synchronous Blade Vibration

Entropy, 2021
In order to explore the mechanism during the process of the non-synchronous vibration (NSV), the flow field formation development is investigated in this paper. Based on the fluid–structure interaction method, the vibration of rotor blades is found to be
Mingming Zhang, Anping Hou, Yadong Han
doaj   +1 more source

The Role of Tip Leakage Vortex Breakdown in Compressor Rotor Aerodynamics [PDF]

Journal of Turbomachinery, 1998
The breakdown of tip leakage vortex has been investigated on a low-speed axial compressor rotor with moderate blade loading. Effects of the breakdown on the rotor aerodynamics are elucidated by Navier–Stokes flow simulations and visualization techniques for identifying the breakdown.
Masato Furukawa, Masahiro Inoue, Kazuhisa Saiki, Kazutoyo Yamada   +3 more
openaire   +1 more source

Investigation of the groove effect on the tip leakage vortex flow

IOP Conference Series: Earth and Environmental Science, 2021
Abstract The groove effect on the tip leakage vortex around a NACA0009 hydrofoil was studied by numerical method. The results show that, as the groove angle is 45°, the groove could enhance the turbulence kinetic energy around the TLV, weaken the TLV strength and improve the pressure in the TLV core, resulting in an efficient suppression
Zhaodan Fei, Rui Zhang, Hui Xu, Tong Mu
openaire   +1 more source

Nb2C‐Reinforced Hydrogel Microneedle as Dual ROS‐Scavenging Platform to Promote Diabetic Wound Healing

Advanced Healthcare Materials, EarlyView.
An advanced microneedle patch integrating niobium carbide nanosheets and curcumin is engineered for diabetic wound healing. The system enables dual ROS scavenging and NIR‐enhanced antimicrobial activity, effectively rebalancing the oxidative microenvironment, promoting macrophage repolarization and angiogenesis, and accelerating full‐thickness wound ...
Zhi Zheng, Heyan Huang, Xiangru Chen, Jie Fu, Zhiwei Sun, Mengjuan Tao, Jianwei Mao, Fei Zhang, Zhou Wan, Yuan Li, Dingan Wu, Chuchao Zhou, Yanqing Yang   +12 more
wiley   +1 more source

Flow Characteristics and Loss Mechanism of Tip Leakage Flow in Mining Contra-Rotating Axial Flow Fan

Applied Sciences
Tip leakage flow interacts with the mainstream, impacting the energy transmission process within the impeller of the fan and causing a significant flow loss.
Yongping Chen, Ronghua Liu, Wenqing Peng, Shiqiang Chen   +3 more
doaj   +1 more source

Controllable Dynamic Mechanical Cell Stimulation using Magnetically Actuated Artificial Cilia

Advanced Healthcare Materials, EarlyView.
This paper introduces a platform based on magnetic artificial cilia for providing controllable dynamic mechanical stimulation to single cells, suitable for investigating large cell populations and enabling live cell imaging. Proof‐of‐principle experiments show that cell morphology is strongly influenced by the artificial cilia, that cellular forces can
Roel Kooi, Tanveer Ul Islam, Oscar M.J.A. Stassen, Naomie Amsing, Jan de Boer, Jaap M.J. den Toonder   +5 more
wiley   +1 more source

SLM-based Digital Adaptive Coronagraphy: Current Status and Capabilities

, 2018
Active coronagraphy is deemed to play a key role for the next generation of high-contrast instruments, notably in order to deal with large segmented mirrors that might exhibit time-dependent pupil merit function, caused by missing or defective segments ...
Arikan, Marcel, Kuhn, Jonas, Lu, Xin, Patapis, Polychronis   +3 more
core   +1 more source

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

Advanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen, Boris Rivkin, David Castellanos‐Robles, Ivan Soldatov, Lukas Beyer, Mariana Medina‐Sánchez   +5 more
wiley   +1 more source

Effects of Tip Leakage Flow on the Aerodynamic Performance and Stability of an Axial-Flow Transonic Compressor Stage

Energies, 2021
To explain the effect of tip leakage flow on the performance of an axial-flow transonic compressor, the compressors with different rotor tip clearances were studied numerically. The results show that as the rotor tip clearance increases, the leakage flow
Botao Zhang, Xiaochen Mao, Xiaoxiong Wu, Bo Liu   +3 more
doaj   +1 more source

Reynolds Stresses and Dissipation Mechanisms in a Turbine Tip Leakage Vortex [PDF]

Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; General, 1994
Reynolds stresses and mean flow velocities were measured throughout a tip leakage vortex in a large scale linear turbine cascade using hot-wire anemometry. An X-wire endflow probe was rotated about the probe axis using a computer controlled stepper motor. An improved solution procedure reduced the approximations involved in the Reynolds stress analysis.
John Moore, Joan G. Moore, Scott P. Heckel, Rafael Ballesteros   +3 more
openaire   +1 more source