Results 31 to 40 of about 6,303 (162)

Hybrid‐Electric Aeroengines: Strategic Technical Pathways and Environmental Implications

Advanced Energy and Sustainability Research, Volume 7, Issue 8, August 2026.
Hybrid‐electric propulsion systems represent a transformative frontier in aerospace engineering, critical for achieving sustainable aviation. This review synthesizes recent breakthroughs in hybrid‐energy aero‐engine design, critically evaluating key technological pillars.
Yankun Wang, Mingkui Wang
wiley   +1 more source

Production, Properties, and Applications of Surface‐Crusted Lightweight Metals in Wind Turbines

Advanced Engineering Materials, Volume 28, Issue 11, 3 June 2026.
The figure describes an application of surface‐crusted lightweight metals (cellular aluminium materials) for blades in small vertical wind turbines. This application has been analyzed with regard to production technology, aerodynamic design, ecological impact, and production energy requirements.
Iva Nova, Karel Frana, Milan Jelínek
wiley   +1 more source

Prediction of Aircraft Surface Noise in Supersonic Cruise State

Aerospace, 2023
The aerodynamic noise of an aircraft leads to vibration fatigue damage to structures. Herein, a prediction method for aircraft surface noise under the comprehensive effect of mixed acoustic sources during flight, primarily surface aerodynamic, air intake,
Xiaoguang Zhang, Huixue Dang, Bin Li
doaj   +1 more source

Shock‐Assisted Flow Control System in Convergent‐Divergent Nozzle: A Numerical Study on Unconventional Protuberance With Different Geometry

Engineering Reports, Volume 8, Issue 5, May 2026.
A numerical investigation using 3D RANS simulations demonstrates significant effects of protuberance geometry—cubic, cylindrical, spherical, and conical—on shock‐induced thrust vectoring in supersonic nozzles. Cubic protuberances provide the maximum jet deflection (˜2°) with negligible thrust reduction.
Mohammadreza Soufivand, Davood Mokhtari, Mohammad Hojaji, Annunziata D'Orazio   +3 more
wiley   +1 more source

Multi-objective Optimization of Horizontal Axis Wind Turbine Arrays: Impact of Spacing Distance on Noise Generation and Power Efficiency [PDF]

Journal of Applied Fluid Mechanics
This work explores the effect of spacing between co-axially positioned Horizontal Axis Wind Turbines (HAWTs) on their aerodynamic behavior and acoustic emissions under uniform inflow conditions. The aerodynamic simulations employ the Actuator Disk Method
A. Amoura, S. Khelladi, A. Smaili, M. N. Hamlaoui, S. Kouidri   +4 more
doaj   +1 more source

The Methodological and Experimental Research on the Identification and Localization of Turbomachinery Rotating Sound Source

Energies, 2022
The localization and quantification of turbomachinery rotating sound sources is an important challenge in the field of aeroacoustics. In order to compensate the motion of a rotating sound source, a rotating beamforming technique is developed and applied ...
Kunbo Xu, Yun Shi, Weiyang Qiao, Zhirong Wang   +3 more
doaj   +1 more source

Coupled Fluid–Structure–Acoustic Analysis of Flow‐Induced Noise Control Using an Elastic Baffle in a Micro Channel

Energy Science &Engineering, Volume 14, Issue 5, Page 2571-2582, May 2026.
This research explores how fluid flow, structural movement, and sound interact in an elastic baffle system. Using a numerical approach based on the finite element method, the study analyzes how noise and vibrations change with different baffle configurations. The findings reveal that shortening the baffle by half reduces noise transmission by 9%, while
Tohid Adibi, Seyed Esmail Razavi, Shams Forruque Ahmed, Khashayar Fardnia, Aydin Qheydarpoor, Hammad Alotaibi   +5 more
wiley   +1 more source

A benchmark case for aeroacoustic simulations involving fluid-structure-acoustic interaction transferred from the process of human phonation

Acta Acustica
Modeling fluid-structure-acoustic interaction is a highly challenging task and currently there is a lack of available benchmark datasets. For instance, to understand the processes of human phonation, it is essential to fully understand the fluid ...
Schoder Stefan, Falk Sebastian, Wurzinger Andreas, Lodermeyer Alexander, Becker Stefan, Kniesburges Stefan   +5 more
doaj   +1 more source

Acoustic Boundary Conditions for Can-Annular Combustors

International Journal of Turbomachinery, Propulsion and Power, 2023
This paper derives and validates an analytical model for acoustic boundary conditions on a can-annular gas turbine combustion system composed of discrete cans connected to an open annulus upstream of a turbine.
James Brind
doaj   +1 more source

TreeSpider: In‐Canopy Exploration With Tether‐Based Aerial Modular Arms

Advanced Robotics Research, Volume 2, Issue 2, April 2026.
A tethered drone with perching arms and a 360° ring enables unprecedented maneuverability within dense forest canopies. By dynamically adjusting tether length and decoupling pitch from the frame, it navigates between branches, senses multiple trees, and interacts physically with foliage.
Luca Romanello, Tian Lan, Salaheldin Hassan, Maximilian Leutschafft, Erdem Ekinci, Sophie F. Armanini, Mirko Kovac, Basaran Bahadir Kocer   +7 more
wiley   +1 more source