Abo Bibliothek: Guest
Digitales Portal Digitale Bibliothek eBooks Zeitschriften Referenzen und Berichte Forschungssammlungen
TsAGI Science Journal

ISSN Druckformat: 1948-2590
ISSN Online: 1948-2604

TsAGI Science Journal

DOI: 10.1615/TsAGISciJ.2015013715
pages 17-28

CALCULATION OF AERODYNAMIC CHARACTERISTICS OF HELICOPTER ROTOR IN HOVER AND AIRFOILS IN NONSTATIONARY FLOW

Natalya Alekseevna Vladimirova
Central Aerohydrodynamic Institute (TsAGI), 1 Zhukovsky Str., Zhukovsky 140180, Russia

ABSTRAKT

Computational fluid dynamics (CFD) methods are used to model the flow features and in the computations of the aerodynamic characteristics of a helicopter rotor. For the purpose of verification and validation of the numerical methods used, techniques to calculate the main rotor flow in two CFD software packages were developed. The results show satisfactory agreement between the three-dimensional calculations of the integral and distributed characteristics of a two-blade rotor model rotating in hover and the data from the experiment carried out using the standard method at TsAGI. A technique to calculate the two-dimensional transonic nonstationary fluctuating flow over a helicopter airfoil with a specified periodic law of variation over time of the incoming flow velocity was suggested. The results for direct and inverse motion of the airfoil are compared. The phenomenon of hysteresis against the free-stream Mach number was revealed.


Articles with similar content:

DEVELOPMENT OF A METHODOLOGY FOR PROPELLER NOISE CALCULATION ON HIGH-PERFORMANCE COMPUTER
TsAGI Science Journal, Vol.45, 2014, issue 3-4
Vladimir Aleksandrovich Titarev, Ivan Valentinovich Belyaev, Victor F. Kopiev
NUMERICAL INVESTIGATION OF ICING EFFECTS ON VORTEX SHEDDING IN A CASCADE OF STATOR BLADES
Heat Transfer Research, Vol.49, 2018, issue 1
Yuwen Zhang, Sam M. Pouryoussefi
NUMERICAL PREDICTION OF A TANDEM STRAIGHT-BLADED WIND TURBINE PERFORMANCE
International Journal of Energy for a Clean Environment, Vol.20, 2019, issue 3
Omar Imine, Fatima Meddane, Lahouari Adjlout, Tayeb Yahiaoui
ABOUT VERIFICATION AND VALIDATION OF COMPUTATIONAL METHODS AND CODES ON THE BASIS OF GODUNOV METHOD
TsAGI Science Journal, Vol.48, 2017, issue 7
Vladimir Yur'evich Podaruev, Innokentii Aleksandrovich Kursakov, Sergei Vladimirovich Matyash, Anton Roaldovich Gorbushin, Sergey Mikhailovich Bosnyakov, Sergei Vladimirovich Mikhailov
COMPARISON OF RESULTS OF CALCULATION OF LAMINAR−TURBULENT TRANSITION POSITION ON A WING USING VARIOUS TURBULENCE MODELS
TsAGI Science Journal, Vol.45, 2014, issue 5
Sergei Leonidovich Chernyshev, Andrey Filippovich Kiselev, Valery Viktorovich Vozhdaev, Leonid Leonidovich Teperin, Dmitry Sergeevich Sboev