TY - GEN
T1 - Dynamic wake solutions for rotors that are powered, braking, or in transition
AU - Peters, David A.
AU - Chugani, Jesse V.
PY - 2013
Y1 - 2013
N2 - The nonlinear dynamic equation for rotor induced-velocity applies to powered rotors, energy-extracting rotors, and the transition between. This inflow equation (verified by experimental data) yields interesting dynamic behavior due to the attractors, repellers, and branch cuts in the dynamic coefficient. The present paper offers some closed-form results for the nonlinear system in axial flow (along with accompanying numerical solutions) that give insight into the behavior of the dynamic wake in all system regimes. The closed-form solutions also offer good benchmark cases against which to compare large-scale simulation codes. In addition, the paper offers numerical solutions in skewed flow and with an empirical vortex-ring correction.
AB - The nonlinear dynamic equation for rotor induced-velocity applies to powered rotors, energy-extracting rotors, and the transition between. This inflow equation (verified by experimental data) yields interesting dynamic behavior due to the attractors, repellers, and branch cuts in the dynamic coefficient. The present paper offers some closed-form results for the nonlinear system in axial flow (along with accompanying numerical solutions) that give insight into the behavior of the dynamic wake in all system regimes. The closed-form solutions also offer good benchmark cases against which to compare large-scale simulation codes. In addition, the paper offers numerical solutions in skewed flow and with an empirical vortex-ring correction.
UR - https://www.scopus.com/pages/publications/84883429522
M3 - Conference contribution
AN - SCOPUS:84883429522
SN - 9781627486514
T3 - Annual Forum Proceedings - AHS International
SP - 67
EP - 96
BT - 69th American Helicopter Society International Annual Forum 2013
T2 - 69th American Helicopter Society International Annual Forum 2013
Y2 - 21 May 2013 through 23 May 2013
ER -