Results 81 to 90 of about 24,273 (294)

Capacitance Tip Timing Techniques in Gas Turbines [PDF]

, 2003
The vibration of turbomachinery blades is an important phenomenon to understand, observe and predict and is the reason for developing a tip timing measurement system.
Lawson, Craig P.
core  

Neuromorphic Electronics for Intelligence Everywhere: Emerging Devices, Flexible Platforms, and Scalable System Architectures

Advanced Materials, EarlyView.
The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj, Roshni Satheesh Babu, Yuxin Xia, Eva Bestelink, Radu Sporea, Nikos Hastas, Ioannis Zeimpekis, Dimitra G. Georgiadou, Sayani Majumdar   +8 more
wiley   +1 more source

A Computationally Efficient Hybrid Leakage Model for Modeling Leakage in Positive Displacement Compressors

, 2012
An empirical frictional correction factor to the isentropic nozzle model has been developed for application to leakage modeling in scroll, rotary and other similar compressors. This correction factor is derived by calculating the leakage mass flow with a
Groll, Eckhard A., Braun, James E., Horton, W. Travis, Bell, Ian H.   +3 more
core  

Demonstration of leakage flow distribution of an axial fan inside the tip clearance gap

, 2017
The tip leakage flow and its associated losses one of the key parameters influence the performance of the axial turbomachines. In this paper, the tip leakage distribution of an axial industrial fan was demonstrated for different stagger angles, tip ...
Hamad M. Alhajeri, Addali, Abdulmajid, Alhajeri, Hamad M., Gamil, Abdelaziz A A, J. T. Teixeira, Elasha, Faris; id_orcid, Abdelaziz A. Gamil, Faris Elasha, Teixeira, Joao Amaral, Addali A.   +9 more
core   +1 more source

Hydrogel‐Based Airway‐on‐Tube With Perfusable Endothelial Lumen and Outward Epithelialization

Advanced Materials, EarlyView.
A hydrogel‐based airway‐on‐tube platform featuring a perfusable endothelial lumen and outward epithelialization is presented. The system supports primary human bronchial epithelial and lung microvascular endothelial coculture under air‐liquid interface conditions.
Ali Doryab, Jack F. Murphy, Michael Bartolf‐Kopp, Jenny C‐C Hsin, Alice Chernaik, Frank McCaughan, Yan Yan Shery Huang, Tomasz Jungst, Jürgen Groll   +8 more
wiley   +1 more source

Advances in the Aerothermal Performance Enhancement of Turbine Blade Tip Configurations

Energies
A clearance necessarily exists between the blade tip and the casing in turbines. A leakage flow, formed by the accelerated gas through the tip clearance, is a major cause of turbine stage efficiency loss.
Bin Wu, Lei Ren, Renyi Wen, Chenrui Yang, Daren Zheng   +4 more
doaj   +1 more source

Scale effects of the tip-leakage flow with and without cavitation: A numerical study in OpenFOAM

Large eddy simulations of the tip-leakage vortex (TLV) flow around the NACA0009 hydrofoil are performed in OpenFOAM to study the scale effects of the tip-leakage vortex profile with and without cavitation.
Zhao, Xiaotao,, Ji, Bin,, Cheng, Huaiyu,, Bensow, Rickard,   +3 more
core   +1 more source

Numerical analysis of unsteady tip leakage vortex cavitation cloud and unstable suction-side-perpendicular cavitating vortices in an axial flow pump

, 2015
The objective of this work is to simulate and analyze the formations of three-dimensional tip leakage vortex (TLV) cavitation cloud and the periodic collapse of TLV-induced suction-side-perpendicular cavitating vortice (SSPCV).
Shi, Weidong, Zhao, R., Shi, W., Esch, BPM Bart van, van Esch, B.P.M., Wang, H., Wang, H Haiyu, Zhang, D., Zhang, D, Shi, L., Zhao, Ruijie, van Esch, B.P.M.; id_orcid, Shi, Lei   +12 more
core   +1 more source

Advances in Magnesium‐Based Thermoelectrics: A Critical Review

Advanced Materials, EarlyView.
Magnesium‐based thermoelectric materials have emerged as promising candidates for low‐to‐mid‐temperature energy conversion due to their abundance, low cost, and competitive performance. This review summarizes recent advances in Mg3X2, MgAgSb, and Mg2X systems, covering transport mechanisms, fabrication strategies, stability challenges, and device ...
Li‐Min Zhang, Li Zhang, Nan‐Hai Li, Yan‐Ling Yang, Xiao‐Lei Shi, Zhi‐Gang Chen   +5 more
wiley   +1 more source

Characterization of the Unsteady Aerodynamics of Optimized Turbine Blade Tips through Modal Decomposition Analysis

International Journal of Turbomachinery, Propulsion and Power, 2019
The present research focused on the analysis of the leakage flows developing from advanced blade tip geometries. The aerodynamic field of a contoured blade tip and of a high-performance rimmed blade were investigated against a baseline squealer rotor ...
Bogdan C. Cernat, Sergio Lavagnoli
doaj   +1 more source