Recent NASA efforts have been devoted to the development of a vehicle for Mans exploration. A number of vehicle designs, including a Mars airplane and balloon designs, have been proposed for use in he exploration of Mars. Land vehicles, such as rovers, and space orbiters have already been studied. Recently, efforts have been directed towards the development of vertical lift vehicles, such as helicopters and tilt rotors, for use in Mars exploration. This paper presents Reynolds-averaged Navier-Stokes calculations for a prototype Martian rotorcraft. These computational simulations present a new and challenging problem, since rotors that operate on Mars will experience a unique low Reynolds number and high Mach number environment. Computed results for the three-dimensional (3-D) rotor differ substantially from two-dimensional (2-D) sectional computations in that the 3-D results exhibit a stall delay phenomenon caused by rotational forces and 3-D effects along the blade span. Computational results have yet to be compared to experimental data, but computed performance predictions match the experimental design goals fairly well and arc compared to 2-D results. In addition, the computed results provide a high level of detail in the rotor wake and blade surface aerodynamics.
Computational aerodynamics analysis of a Martian rotorcraft
Rechnersimulation der Aerodynamik einer Drehflügeldrohne in der Marsatmosphäre
Journal of the American Helicopter Society ; 49 , 3 ; 350-356
2004
7 Seiten, 13 Bilder, 2 Tabellen, 20 Quellen
Aufsatz (Zeitschrift)
Englisch
Drehflügelflugzeug , dreidimensionale Strömung , Flugmechanik , Gasatmosphäre , Methodenvergleich , Nachlaufströmung , numerische Strömungssimulation , Planet , Prototyp , Rotor (Drehflügel) , Simulationsversuch , Theorie-Experiment-Vergleich , Tragflügelumströmung , unbemanntes Gerät , zweidimensionale Strömung , Gitternetz
Computational Aerodynamics Analysis of a Martian Rotorcraft
Online Contents | 2004
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