|
|
|
|
|
Andreas Wurzinger, Florian Kraxberger, Paul Maurerlehner, Bernhard Mayr-Mittermüller, Peter Rucz, Harald Sima, Manfred Kaltenbacher and Stefan Schoder
Acoustic emissions play a major role in the usability of many product categories. Therefore, mitigating the emitted sound directly at the source is paramount to improve usability and customer satisfaction. To reliably predict acoustic emissions, numerica...
ver más
|
|
|
|
|
|
|
|
|
|
|
Morteza Monfaredi, Varvara Asouti, Xenofon Trompoukis, Konstantinos Tsiakas and Kyriakos Giannakoglou
A continuous adjoint-based aeroacoustic optimization, based on a hybrid model including the Ffowcs Williams?Hawkings (FW?H) acoustic analogy, to account for the multidisciplinary design of aero-engine intakes with an axisymmetric geometry, is presented. ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Joseph Watkins and Abdessalem Bouferrouk
This paper presents initial results on the aeroacoustic and aerodynamic effects of morphing the trailing-edge flap of the 30P30N aerofoil, over five flap deflections (5?25°), at an 8° angle of attack and a Reynolds number of Re=9.2×105" role="pr...
ver más
|
|
|
|
|
|
|
|
|
|
|
Martin Lasota, Petr ?idlof, Manfred Kaltenbacher and Stefan Schoder
In an aeroacoustic simulation of human voice production, the effect of the sub-grid scale (SGS) model on the acoustic spectrum was investigated. In the first step, incompressible airflow in a 3D model of larynx with vocal folds undergoing prescribed two-...
ver más
|
|
|
|
|
|
|
|
|
|
|
Chawki Abdessemed, Abdessalem Bouferrouk and Yufeng Yao
This work explores the aerodynamic and aeroacoustic responses of an airfoil fitted with a harmonically morphing Trailing Edge Flap (TEF). An unsteady parametrization method adapted for harmonic morphing is introduced, and then coupled with dynamic meshin...
ver más
|
|
|
|
|
|
|
|
|
|
|
Wladyslaw Marek Hamiga and Wojciech Bronislaw Ciesielka
Understanding local phenomena connected with airflow around road vehicles allows to reduce the negative impact of transportation on the environment. This paper presents using numerical tools for Computational Fluid Dynamics (CFD) and Computational AeroAc...
ver más
|
|
|
|
|
|
|
|
|
|
|
Songjune Lee, Cheolung Cheong, Jaehwan Kim and Byung-hee Kim
The high-speed train interior noise induced by the exterior flow field is one of the critical issues for product developers to consider during design. The reliable numerical prediction of noise in a passenger cabin due to exterior flow requires the decom...
ver más
|
|
|
|
|
|
|
|
|
|
|
Seyyed Mahdi Najmabadi, Philipp Offenhäuser, Moritz Hamann, Guhathakurta Jajnabalkya, Fabian Hempert, Colin W. Glass and Sven Simon
Computational fluid dynamic simulations involve large state data, leading to performance degradation due to data transfer times, while requiring large disk space. To alleviate the situation, an adaptive lossy compression algorithm has been developed, whi...
ver más
|
|
|
|
|
|
|
|
|
|
|
Moritz Schulze, Michael Wagner and Thomas Sattelmayer
The interaction of a plane acoustic wave and a sheared flow is numerically investigated for simple orifice and perforated plate configurations in an isolated, non-resonant environment for Mach numbers up to choked conditions in the holes. Analytical deri...
ver más
|
|
|
|
|
|