TY - GEN
T1 - OVERFLOW rotor hover simulations using advanced turbulence and transition modeling
AU - Coder, James G.
N1 - Publisher Copyright:
© 2017 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.
PY - 2017
Y1 - 2017
N2 - The S-76 and PSP rotor blades are simulated for a tip Mach number of 0.65 and a range of collective pitches using a structured, overset computational fluid dynamics solver. Grid generation and solution strategies are described for both rotors. Two different hybrid RANS/LES methods are used to predict the turbulence in the flow field, and the use of an advanced laminar-turbulent transition model is also explored. Predicted values of thrust, torque, and figure of merit are compared with experiment for the S-76 rotor. Qualitative assessments of the flow fields from the two turbulence modeling strategies are made and the impact of laminar-turbulent transition modeling is described. Predicted values of thrust, torque, and figure of merit are listed for the PSP rotor, and the behavior of its flow field is also assessed and compared to the S-76.
AB - The S-76 and PSP rotor blades are simulated for a tip Mach number of 0.65 and a range of collective pitches using a structured, overset computational fluid dynamics solver. Grid generation and solution strategies are described for both rotors. Two different hybrid RANS/LES methods are used to predict the turbulence in the flow field, and the use of an advanced laminar-turbulent transition model is also explored. Predicted values of thrust, torque, and figure of merit are compared with experiment for the S-76 rotor. Qualitative assessments of the flow fields from the two turbulence modeling strategies are made and the impact of laminar-turbulent transition modeling is described. Predicted values of thrust, torque, and figure of merit are listed for the PSP rotor, and the behavior of its flow field is also assessed and compared to the S-76.
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U2 - 10.2514/6.2017-1432
DO - 10.2514/6.2017-1432
M3 - Conference contribution
AN - SCOPUS:85017260558
T3 - AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting
BT - AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting
PB - American Institute of Aeronautics and Astronautics Inc.
T2 - 55th AIAA Aerospace Sciences Meeting
Y2 - 9 January 2017 through 13 January 2017
ER -