Results 81 to 90 of about 8,352,814 (137)

The Impact of Installation Effects on Propeller Design Optimization for Aerodynamic and Aeroacoustic Performance

, 2022
To make propellers more viable as a greener alternative to jet engines, the issue of propeller noise needs to be addressed. Previous propeller design optimization studies rarely take into account the effects on aerodynamic and aeroacoustic performance ...
de Gruijl, Wouter (author)
core  

Review of launcher lift-off noise prediction and mitigation

Results in Engineering
This article provides a comprehensive overview of noise prediction and mitigation methodologies within the context of rocket launch events. The first section presents noise sources generated during the launch and the methods employed for aeroacoustic ...
Mara S. Escartí-Guillem, Lluis Miguel Garcia-Raffi, Sergio Hoyas   +2 more
doaj   +1 more source

Examinations on the Effects of Profile Modifications and Incorporation of Novel Insulated Lattice Composites on Aerodynamic, Aeroacoustic Parameters of Bell Nozzles

Results in Engineering
This research investigates the fluid dynamic and thermal behavior of Convergent-Divergent (C-D) nozzles, focusing on enhancing nozzle performance and identifying thermally resilient materials suitable for high-temperature applications.
Ragavendra Thaiyan Rajendran, Akhila Ajith Pisharam, Arul Prakash Raji, Senthil Kumar Madasamy, Beena Stanislaus Arputharaj, Subhav Singh, Deekshant Varshney, Ramya Maranan, Balaji Ganesan, Vijayanandh Raja   +9 more
doaj   +1 more source

Development and Measurement of a Very Thick Aerodynamic Profile for Wind Turbine Blades

Wind
We designed 60% thick airfoil to improve the aerodynamic performance in the root region of wind turbine rotor blades, taking into account current constraints.
Alois Peter Schaffarczyk, Brandon Arthur Lobo, Nicholas Balaresque, Volker Kremer, Janick Suhr, Zhongxia Wang   +5 more
doaj   +1 more source

Development and commissioning of an aeroacoustic test bench for the investigation of single and coaxial propeller noise

Acta Acustica
This paper describes the design and commissioning of an aeroacoustic test rig for the study of single and coaxial propeller propulsive systems. The size of the propellers matches typical drone applications.
Gallo Erica, De Decker Julien, Bresciani Andrea, Haezebrouck Pauline, Garone Emanuele, Schram Christophe   +5 more
doaj   +1 more source

Near-Field Pressure Signature of New-Concept Supersonic Aircraft Obtained Using Open-Source Approach

Sci
This study investigates the numerical prediction of the sonic boom phenomenon in supersonic aircraft by evaluating the near-field pressure signatures of three different aeroshapes.
Antimo Glorioso, Francesco Petrosino, Mattia Barbarino, Giuseppe Pezzella   +3 more
doaj   +1 more source

Aeroacoustic noise produced by an aerofoil.

, 2005
This thesis describes an investigation into the aeroacoustic noise produced by an aerofoil using experimental, computational and theoretical methods. Several different types of aeroacoustic noise generation mechanisms and the parameters which affect ...
Kingan, Michael Joseph
core   +1 more source

Integration of CFD tools in aerodynamic design of contra-rotating propellers blades [PDF]

, 2011
A strategy for Contra-Rotating Open Rotors blades design is presented. It is based on several analytical or CFD tools with increasing levels of accuracy. A preliminary design is made with a lifting-line code. These first geometries are then validated and
Béchet, Sylvain, Negulescu, Camil A., Chapin, Vincent, Simon, Frank   +3 more
core  

Aeroacoustic noise prediction for SRM

, 2014
6 pagesInternational audienceHigh speed motors produce an important aeroacoustic noise which restrains their field of use. In this paper we focus on an adaptation of some aeroacoustic studies in the case of a single phase SRM whose rotation rate is ...
Gabsi, Mohamed, J. Ojeda, S. Parrang, M. Gabsi, S. Khelladi, Ojeda, Javier Matias, Khelladi, Sofiane, Parrang, Sylvain   +7 more
core   +1 more source

Performance

Representing the output of the research project "Performance: Conservation, Materiality, Knowledge," this volume brings together diverse voices, methods, and formats in the discussion and practice of performance conservation.

core   +1 more source