Zobrazeno 1 - 10
of 98
pro vyhledávání: '"Šidlof Petr"'
Publikováno v:
Acta Acustica, Vol 7, p 25 (2023)
Numerical modeling of the human phonatory process has become more and more in focus during the last two decades. The increase in computational power and the use of high-performance computation (HPC) yielded more complex models being closer to the act
Externí odkaz:
https://doaj.org/article/8e0a23931cbe4a90907b03c34b623c4d
Publikováno v:
EPJ Web of Conferences, Vol 269, p 01049 (2022)
This paper deals with the interferometry measurement of the flow field in the vicinity of the surface of the self-excited single profile NACA 0015 in subsonic air flow. The pressure and velocity on the profile surface, the total forces and total mome
Externí odkaz:
https://doaj.org/article/cd2feeda55a840cb86125a49374905e7
Publikováno v:
EPJ Web of Conferences, Vol 264, p 01017 (2022)
With the increasing share of renewable power resources turbomachines need to be operated under a wider range of operating conditions including highly off-design regimes. Under such regimes an undesirable phenomenon of blade flutter might occur and po
Externí odkaz:
https://doaj.org/article/17dbe661d1ea4c468e9035841b1df0a6
Publikováno v:
EPJ Web of Conferences, Vol 264, p 01041 (2022)
Flow-induced vibration of turbine and compressor blades, so called blade flutter, represents a serious problem for designers and operators of large turbomachines. The research of mechanisms leading to this dangerous aeroelastic instability, which can
Externí odkaz:
https://doaj.org/article/ef06f782df144ff683129b4ace5caeac
Publikováno v:
MATEC Web of Conferences, Vol 345, p 00020 (2021)
Long term strategic changes in power generation approaches will require more flexibility for large power generating turbines as an unavoidable consequence of the increasing share of power generated by alternative energy sources. Demanded flexibility
Externí odkaz:
https://doaj.org/article/1e66a8aae9804174a54946bd8d67c377
Autor:
Lasota Martin, Šidlof Petr
Publikováno v:
MATEC Web of Conferences, Vol 328, p 02023 (2020)
The first aim of this paper is to compare three cases, where two cases contain turbulence sub-grid scale (SGS) models, which are commonly applied in wall-bounded flows. They use a bit different formulation of how to estimate the eddy-viscosity fields
Externí odkaz:
https://doaj.org/article/01d015fcf6914b85912a0d80de3e09ef
Publikováno v:
The Journal of the Acoustical Society of America 153, 1052-1063 (2023)
This article deals with large-eddy simulations of 3D incompressible laryngeal flow followed by acoustic simulations of human phonation of five cardinal english vowels /u, i, \textipa{A}, o, {\ae}/. The flow and aeroacoustic simulations were performed
Externí odkaz:
http://arxiv.org/abs/2301.00606
Autor:
Lasota Martin, Šidlof Petr
Publikováno v:
EPJ Web of Conferences, Vol 180, p 02054 (2018)
The phonatory process occurs when air is expelled from the lungs through the glottis and the pressure drop causes flow-induced oscillations of the vocal folds. The flow fields created in phonation are highly unsteady and the coherent vortex structure
Externí odkaz:
https://doaj.org/article/a51e8212da344b3eb5440e94450abe72
Publikováno v:
EPJ Web of Conferences, Vol 143, p 02107 (2017)
The paper reports on hot wire turbulence intensity measurements performed in the entry of a suction-type wind tunnel, used for investigation of flow-induced vibration of airfoils and slender structures. The airfoil is elastically supported with two d
Externí odkaz:
https://doaj.org/article/9d99fbb500304144b7a24b8388d899d8
Autor:
Šidlof Petr
Publikováno v:
EPJ Web of Conferences, Vol 114, p 02105 (2016)
Flow-induced vibration of lifting or control surfaces in aircraft may lead to catastrophic consequences. Under certain circumstances, the interaction between the airflow and the elastic structure may lead to instability with energy transferred from t
Externí odkaz:
https://doaj.org/article/0927054ddc174254a0a3a74d98c7b501