Results 41 to 50 of about 3,338,670 (410)

Numerical Investigation into the Influence of Grain Orientation Distribution on the Local and Global Elastic-Plastic Behaviour of Polycrystalline Nickel-Based Superalloy INC-738 LC

Crystals, 2022
Polycrystalline nickel-based superalloys tend to have large grains within component areas where high loads are dominant during operation. Due to these large grains, caused by the manufacturing and cooling process, the orientation of each grain becomes ...
Benedikt Engel, Mark Huth, Christopher Hyde   +2 more
doaj   +1 more source

A Review on Gas Turbine Gas-Path Diagnostics: State-of-the-Art Methods, Challenges and Opportunities

Aerospace, 2019
Gas-path diagnostics is an essential part of gas turbine (GT) condition-based maintenance (CBM). There exists extensive literature on GT gas-path diagnostics and a variety of methods have been introduced.
A. Fentaye, A. T. Baheta, S. I. Gilani, K. Kyprianidis   +3 more
semanticscholar   +1 more source

A Thermal Fluid–Solid Coupling Simulation of Gas Fuel Control Valves for High-Precision Gas Turbines

Aerospace, 2023
Gas fuel control valves play important roles in the control of gas flow in high-precision gas turbines. To clarify the influence of coupling between the structure and the fluid system, a thermal fluid–solid coupling mechanism is presented based on ...
Haoran Pan, Wei Li, Kaikai Luo, Rui Wang, Liesheng Xiao, Zeqing Lian   +5 more
doaj   +1 more source

Environmental degradation of high-temperature protective coatings for ceramic-matrix composites in gas-turbine engines

npj Materials Degradation, 2019
The need for higher efficiencies and performance in gas-turbine engines that propel aircraft in the air, and generate electricity on land, is pushing the operating temperatures of the engines to unprecedented levels.
N. Padture
semanticscholar   +1 more source

Influence of Surface Roughness on a Highly Loaded Axial Compressor Stage Performance at Low Reynolds Number

International Journal of Aerospace Engineering, 2021
In the present study, a numerical simulation was conducted to investigate the influence of surface roughness on the aerodynamic performance of a 1.5-stage highly loaded axial compressor at low Reynolds number.
Hongzhi Cheng, Mingyang Wang, Chuangxin Zhou, Shengfeng Zhao, Xingen Lu, Junqiang Zhu   +5 more
doaj   +1 more source

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

Advanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat, Mojtaba Karamimoghadam, Mohammadreza Lalegani Dezaki, Ali Zolfagharian, Giuseppe Casalino, Antonio Mateo, Mahdi Bodaghi   +6 more
wiley   +1 more source

Comparison of sintering resistance property of new thermal barrier coatings LaMgAl11O19 and YSZ coatings for heavy-duty gas turbines

Cailiao gongcheng
With the development of heavy-duty gas turbines， its gas inlet temperature keeps increasing， and the traditional YSZ coatings could not service above 1200 ℃.
HE Lei, DENG Tiantian
doaj   +1 more source

Computational study of free surface film flow and subsequent disintegration of a sheet and ligaments into droplets from a rotary disk atomizer

Engineering Applications of Computational Fluid Mechanics, 2023
In the present study, a computational methodology based on computational fluid dynamics (CFD) is developed to investigate free surface film flow and its subsequent disintegration on a rotary disk atomizer.
Kuldeep Singh, Stephen Ambrose, Richard Jefferson-Loveday, Andrew Nicoli, Sandeep Mouvanal   +4 more
doaj   +1 more source

Mitigation of Cracks in High‐Performance Nickel‐Based Superalloys in Powder Bed Fusion Laser Beam of Metals Using a Metal Matrix Composite Approach

Advanced Engineering Materials, EarlyView.
High‐performance nickel‐based superalloys are often not processible in additive manufacturing (AM) due to hot cracking. The findings in this manuscript propose an efficient method to mitigate cracking and enhance mechanical properties of these alloys by producing a metal matrix composite, contributing to the material and process perspective of the AM ...
Klaus Büßenschütt, Maël Pontoreau, Christian Haase, Johannes‐Henrich Schleifenbaum   +3 more
wiley   +1 more source

Research on the Flow Mechanism of a High-Loading Biomimetic Low-Pressure Turbine Cascade

Aerospace
The biomimetic turbine has an excellent flow drag reduction ability and wide incidence adaptability, so it has the potential to achieve high efficiency within a wide working range of high-performance variable cycle engines.
Hanliu Deng, Zhijun Lei, Xiaoqing Ouyang, Yuxiang He, Hang Yuan, Gang Li, Yanfeng Zhang, Xingen Lu, Gang Xu   +8 more
doaj   +1 more source