Results 51 to 60 of about 11,915 (202)
Experimental and Numerical Investigation of Near-field Rotor Aeroacoustics [PDF]
, 2018 This work presents comparisons between experimental and numerical estimates of near-field rotor aeroacoustics in hover. The experiments took place at the Kazan National Research Technical University named after A. N. Tupolev (Kazan Aviation Institute).
Barakos, George N. +6 more
core
Continuous Adjoint to Proudman's Formula for Aeroacoustic Shape Optimization
International Journal for Numerical Methods in Fluids, Volume 97, Issue 6, Page 966-984, June 2025.This paper presents a cost‐efficient framework for aeroacoustic shape optimization by developing the adjoint to Proudman's formula, coupled with the steady‐state RANS equations and the k‐ ω$$ \omega $$ SST turbulence model. The aeroacoustic model and the adjoint solver are initially validated/verified with experimental data/finite differences, before ...
M. Erfan Farhikhteh +2 more
wiley +1 more source
ADER-WENO Finite Volume Schemes with Space-Time Adaptive Mesh Refinement [PDF]
, 2015 We present the first high order one-step ADER-WENO finite volume scheme with Adaptive Mesh Refinement (AMR) in multiple space dimensions. High order spatial accuracy is obtained through a WENO reconstruction, while a high order one-step time ...
Balsara, Dinshaw S. +3 more
core +1 more source
Development and validity of type II sulcus vocalis in excised canine larynx
World Journal of Otorhinolaryngology - Head and Neck Surgery, Volume 11, Issue 2, Page 276-280, June 2025.Abstract Objectives This study aims to develop a sulcus vocalis model in the excised canine larynx and to investigate the validity of the model. Methods Type II sulcus vocalis was created by continuous intradermal suture in six excised canine larynges.
Ting Gong +6 more
wiley +1 more source
Theoretical and numerical method in aeroacoustics [PDF]
INCAS Bulletin, 2010 The paper deals with the mathematical and numerical modeling of the aerodynamic noisegenerated by the fluid flow interaction with the solid structure of a rotor blade.Our analysis use Lighthill’s acoustic analogy.
Nicuşor ALEXANDRESCU +1 more
doaj +1 more source
Spatiotemporal optical vortex reconnections of loop vortices
Nanophotonics, Volume 14, Issue 6, Page 729-739, April 2025.Abstract Reconnections of spatiotemporal optical vortices have been shown to occur between line vortices. Here, we show that reconnections also occur between spatiotemporal loop vortices in optical waves. As optical loop vortices propagate in a media with spatial diffraction and material group velocity dispersion, unique reconnections occur.
Jordan Adams, Andy Chong
wiley +1 more source
Wind Energy, Volume 28, Issue 3, March 2025.ABSTRACT The airfoil DU91‐W2‐150 was investigated in the Low Speed Low Turbulence Tunnel at the Delft University of Technology to study unsteady aerodynamics. This experimental study tested the airfoil under a wide range of angles of attack (AoA) from 0° to 310° at three Reynolds numbers (Re$$ \mathit{\operatorname{Re}} $$) from 2×105$$ 2\times 1{0}^5 $
Guanqun Xu +3 more
wiley +1 more source
Advances in Astronomy, Volume 2025, Issue 1, 2025.Infrasound, low‐frequency sound below 20 Hz, has been a key technology to monitor explosion events in the atmosphere. The International Monitoring System (IMS) of the Comprehensive Nuclear‐Test‐Ban Treaty Organization provides the means for continuous monitoring of infrasonic events worldwide.
Keehoon Kim, Elizabeth A. Silber
wiley +1 more source
Engineering Reports, Volume 6, Issue 11, November 2024.This study investigates the impact of a redesigned aerodynamics laboratory course on students' readiness for Aerospace Engineering senior design projects at North Carolina State University. The updated curriculum, centered on propellers and incorporating Additive Manufacturing, introduces anechoic chambers for the first time.
Mingtai Chen
wiley +1 more source
An integral formulation for wave propagation on weakly non-uniform potential flows
, 2016 An integral formulation for acoustic radiation in moving flows is presented. It is based on a potential formulation for acoustic radiation on weakly non-uniform subsonic mean flows.
Astley, R. Jeremy +4 more
core +3 more sources