Results 51 to 60 of about 18,174 (265)

Effect of rotor blade tip clearance on aerodynamic performance of high-speed multi-stage axial compressor

Nihon Kikai Gakkai ronbunshu, 2023
Using a high-speed multistage scale model compressor simulating a middle stage of a gas turbine compressor for power generation, the effects of 3 types of rotor tip clearances on performance and operating range, and the vortex structure of rotor tip ...
Ryosuke SEKI
doaj   +1 more source

INVESTIGATION OF THE EFFECT OF AIR HUMIDITY ON GAS TURBINE ENGINE PARAMETERS

Авіаційно-космічна техніка та технологія, 2017
The mathematical model of a turbo-shaft engine with a two-stage gas generator was obtained. This model is based on the multi-stage compressor blade – to - blade description, which makes it possible to evaluate the effect of air humidity on its ...
Людмила Георгиевна Бойко, Вадим Анатольевич Даценко   +1 more
doaj   +1 more source

Recent Advances in Wide‐Bandgap Perovskite Solar Cells

Advanced Materials, EarlyView.
Ubiquitous defects predominately account for photo‐instability and open‐circuit voltage losses in wide‐bandgap perovskite solar cells (WBG PSCs). This review comprehensively presents the underlying impact mechanisms, summarizes the advanced optimization strategies across various functional layers and their interfaces to develop efficient and stable WBG
Jianjun Mei, Feng Yan
wiley   +1 more source

Simulation of Casing Treatments of a Transonic Compressor Stage

International Journal of Rotating Machinery, 2008
This article presents the study of casing treatments on an axial compressor stage for improving stability and enhancing stall margin. So far, many simulations of casing treatments on single rotor or rotor-stator configurations were performed.
M. Hembera, H.-P. Kau, E. Johann
doaj   +1 more source

Non-Uniform Time Sampling for Multiple-Frequency Harmonic Balance Computations [PDF]

, 2013
A time-domain harmonic balance method for the analysis of almost-periodic (multi-harmonics) flows is presented. This method relies on Fourier analysis to derive an efficient alternative to classical time marching schemes for such flows.
Dufour, Guillaume, Gallard, François, Gomar, Adrien, Guédeney, Thomas, Puigt, Guillaume, Sicot, Frédéric   +5 more
core   +1 more source

Advances in Topological Thermoelectrics: Harnessing Quantum Materials for Energy Applications

Advanced Materials, EarlyView.
Topological materials offer a novel platform for thermoelectric energy conversion through unique band features, including band inversion, linear Dirac bands, surface states, and Berry curvature. These quantum characteristics enable enhanced longitudinal and transverse thermoelectric effects, establishing topological thermoelectrics as a promising ...
Guangsai Yang, Lina Sang, Chao Zhang, Khay See, Alex Hamilton, Michael Fuhrer, Ning Ye, G. Jeffrey Snyder, Xiaolin Wang   +8 more
wiley   +1 more source

Progress in Multilayer PVDF‐Based Composite for Dielectric Energy Storage

Advanced Materials Interfaces, EarlyView.
This review summarizes recent advances in poly(vinylidene fluoride)‐based multilayer composite films for energy storage capacitors, focusing on layer configurations, filler engineering, and functional layer integration. It highlights strategies to enhance dielectric performance and energy density while addressing interfacial defects and property trade ...
Shubao Yang, Weihao Wu, Jianghai Wang, Haowen Mu, Rongli Gao, Xiaoling Deng, Wei Cai, Chunlin Fu   +7 more
wiley   +1 more source

Surge prevention in gas turbines: an overview over historical solutions and perspectives about the future [PDF]

E3S Web of Conferences, 2019
The aim of the present work is to retrace experimental, analytical and numerical analyses which deal with compressor instability phenomena, such as rotating stall and surge.
Niccolini Marmont Du Haut Champ Carlo Alberto, Massardo Aristide Fausto, Ferrari Mario Luigi, Silvestri Paolo   +3 more
doaj   +1 more source

An Injectable BMP‐2‐Releasing Porous Hydrogel Regulating the Paracrine Effects of ADSCs Promotes Tendon‐to‐Bone Healing in Rotator Cuff Repair

Advanced Science, EarlyView.
This study designs an injectable porous hydrogel (HMs/MBs/ADSCs) integrating hollow microspheres for sustained BMP‐2 release to enhance adipose‐derived stem cells' paracrine effect. It accelerates tendon‐bone healing in rat rotator cuff injuries via spatiotemporal regulation: early AMPK‐mediated mitochondrial protection and late TGF‐β/Smad2/3‐driven ...
Meijuan Yuan, Xiaomei Dai, Yuxia Yang, Shuai Liu, Ziyi Xu, Liang Wang, Junli Shi, Wenkang Liu, Jian Yang, Dianwei Liu, Hang Yao, Wenyong Fei   +11 more
wiley   +1 more source

Bidirectional Phase Separation Spinning Under Natural Drying to Prepare Aerogel Fibers for Thermal Insulation

Advanced Science, EarlyView.
In order to take full advantage of the porous structure generated by phase separation, a bidirectional phase separation spinning method is proposed. The method enables continuous and rapid preparation of aerogel fibers without energy‐intensive additional steps, which significantly reduces energy consumption and processing time, and positions aerogel ...
Jiaxin Shen, Shisheng Hou, Chen Li, Kuibo Yin, Li Zhong, Hengchang Bi, Litao Sun   +6 more
wiley   +1 more source