Temat: hover - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Numerical simulation of model helicopter rotor in hover
Autorzy:: Doerffer, P.
Szulc, O.
Powiązania:: https://bibliotekanauki.pl/articles/1943245.pdf
Data publikacji:: 2008
Wydawca:: Politechnika Gdańska
Tematy:: transonic
hover
helicopter rotor
Opis:: The article presents details of a URANS simulation of the flow field near a hovering model of the Caradonna and Tung (1981) helicopter rotor [1]. The CFD code SPARC [2] proves to be capable of capturing the aerodynamics of a two-bladed rotor in high-speed transonic hover conditions. A comparison of the simulation results with the experimental data is acceptable, hence the described methodology might be used with confidence in future numerical studies of application of noise-reducing devices on helicopter blades.
Źródło:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2008, 12, 3-4; 227-236
1428-6394
Pojawia się w:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Passive control of shock wave applied to helicopter rotor high-speed impulsive noise reduction
Autorzy:: Doerffer, P.
Szulc, O.
Powiązania:: https://bibliotekanauki.pl/articles/1943208.pdf
Data publikacji:: 2010
Wydawca:: Politechnika Gdańska
Tematy:: shock wave
passive control
perforated wall
transpiration
helicopter rotor in hover
high-speed impulsive noise
Opis:: A strong, normal shock wave, terminating a local supersonic area on an airfoil (or a helicopter blade), not only limits the aerodynamic performance, but also becomes a source of High-Speed Impulsive (HSI) noise. The application of a passive control system (a cavity covered by a perforated plate) on a rotor blade should reduce the noise created by the moving shock. This article describes numerical investigations focused on the application of a passive control device on a helicopter blade in high-speed transonic hover conditions to weaken the shock wave – the main source of HSI noise.
Źródło:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2010, 14, 3; 297-305
1428-6394
Pojawia się w:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:: Biblioteka Nauki

Artykuł

Informacja