Results 61 to 70 of about 207,688 (313)

Monitoring thermoacoustic instability: A comparative analysis of feature-based and end-to-end deep learning approaches

Applications in Energy and Combustion Science
This paper compares two data-driven frameworks for monitoring thermoacoustic instability (TAI) in a gas turbine combustor. A conventional machine learning approach using handcrafted features is contrasted with an end-to-end deep learning method employing
Jikang Wang, Yichen Wang, Yupeng Qin, Xuan Lv   +3 more
doaj   +1 more source

Effect of rejuvenation heat treatment on re-service aging stability of γ′phase in directionally solidified superalloy

Journal of Aeronautical Materials, 2021
High temperature aging treatment was first conducted on the rejuvenated directionally solidified superalloy to simulate the re-service aging damage of turbine blades and the virgin directionally solidified superalloy respectively.
TANG Wenshu, XIAO Junfeng, NAN Qing, GAO Sifeng, LI Yongjun, ZHANG Jiong   +5 more
doaj   +1 more source

Etude numérique et expérimentale de l'écoulement autour d'un rotor éolien [PDF]

, 2013
An improved model of an actuator surface is proposed, representing the flow around a wind turbine. This model was developed in conjunction with a Navier-Stokes solver using a blade element method for the calculation of power and wake development.
MEMON, Asif, MASSOUH, Fawaz, DOBREV, Ivan   +2 more
core   +1 more source

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

Advanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan, David Bürger, Gunther Eggeler, Oleg Shchyglo, Ingo Steinbach, Muhammad Adil Ali   +5 more
wiley   +1 more source

A New Thermal Elasto-Hydrodynamic Lubrication Solver Implementation in OpenFOAM

Lubricants, 2023
Designing effective thermal management systems within transmission systems requires simulations to consider the contributions from phenomena such as hydrodynamic lubrication regions.
James Layton, Benjamin C. Rothwell, Stephen Ambrose, Carol Eastwick, Humberto Medina, Neville Rebelo   +5 more
doaj   +1 more source

Dislocation of the Turbinate: A Rare Complication of Middle Turbinate Surgery [PDF]

Ear, Nose & Throat Journal, 2007
We describe a rare complication of turbinate surgery—dislocation of the turbinate—in a woman who had undergone surgical treatment for nasal obstruction 10 years earlier. Removal of the displaced yet still-viable turbinate resulted in resolution of her symptoms.
Hisham S, Khalil, Arash H, Naraghi, Desmond A, Nunez   +2 more
openaire   +2 more sources

Modeling and control of a variable speed variable pitch angle prototype wind turbine [PDF]

, 2013
This paper focuses on modeling, control and simulation of a 500 KW horizontal axis prototype wind turbine that is being developed in the context of the MILRES (National Wind Energy Systems) Project in Turkey. The prototype turbine is designed as variable
Evren, Sanem, Mustafa Ünel, Mahmut Akşit, Ünel, Mustafa, Akşit, Mahmut Faruk, Sanem Evren   +5 more
core   +1 more source

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

Advanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb, Zachary T. Kloenne, Samuel R. Rogers, Chi Hang Dominik Kwok, Mark C. Hardy, Michele S. Conroy, David Dye   +6 more
wiley   +1 more source

Research progress on application of new thermal barrier coatings in advanced aero-engines

Journal of Aeronautical Materials
The operating temperatures of hot-section components in advanced aero-engines continue to increase，accompanied by increasingly severe service conditions.
TIAN Wei, GUO Huiming, LIU Yanfei
doaj   +1 more source

Microstructure evolution of creep damaged DZ411 superalloy during rejuvenation heat treatment

Journal of Aeronautical Materials, 2019
The simple solution and aging treatment processes were adopted to rejuvenate the microstructure of creep damaged DZ411 superalloy. The microstructure evolution of superalloy during rejuvenation process was investigated by OM and SEM, and then the ...
TANG Wenshu, XIAO Junfeng, GAO Sifeng, LI Yongjun, NAN Qing, ZHANG Jiong   +5 more
doaj   +1 more source