TY - GEN
T1 - Rotor blade response based on CFD in the frequency domain
AU - Kumar, M.
AU - Murthy, V. R.
PY - 2006
Y1 - 2006
N2 - A formulation to determine the aeroelastic response of a rotor in forward flight is presented. The aerodynamic forces arising in the steady periodic state have been calculated using a frequency domain based CFD analysis in multiblade coordinates. The CFD model is coupled with a nonlinear finite element model of a rotor also in multiblade coordinates. The formulation is quite general and any fluid model governed by equations such as RANS, Euler or Hybrid can be used in the computations. The transformation to multiblade coordinates leads to the cancellation of harmonics except at the blade passage frequencies, thereby increasing the efficiency of the technique. The formulation is being implemented in a computer code and as of today the CFD solution in the frequency domain has been validated by comparing with the available experimental and numerical results.
AB - A formulation to determine the aeroelastic response of a rotor in forward flight is presented. The aerodynamic forces arising in the steady periodic state have been calculated using a frequency domain based CFD analysis in multiblade coordinates. The CFD model is coupled with a nonlinear finite element model of a rotor also in multiblade coordinates. The formulation is quite general and any fluid model governed by equations such as RANS, Euler or Hybrid can be used in the computations. The transformation to multiblade coordinates leads to the cancellation of harmonics except at the blade passage frequencies, thereby increasing the efficiency of the technique. The formulation is being implemented in a computer code and as of today the CFD solution in the frequency domain has been validated by comparing with the available experimental and numerical results.
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M3 - Conference contribution
AN - SCOPUS:34250875123
SN - 1563478072
SN - 9781563478079
T3 - Collection of Technical Papers - 44th AIAA Aerospace Sciences Meeting
SP - 5083
EP - 5126
BT - Collection of Technical Papers - 44th AIAA Aerospace Sciences Meeting
T2 - 44th AIAA Aerospace Sciences Meeting 2006
Y2 - 9 January 2006 through 12 January 2006
ER -