A study has been performed to analyze the feasibility of predicting in-plane shaft loads (so-called 1P loads) of installed propellers using CFD. The A400M military transport aircraft has been used as case study. The results of the computations are compared to both wind tunnel and flight test data. For the flight test comparison the effect of propeller flexibility has been taken into account by means of a coupled CFD-CSM analysis.
Nomenclature
B 1P= 1P shaft bending moment C B1P = 1P shaft bending moment coefficient = B 1P /( n 2 D 5 )= 1P propeller moment n = propeller rotational speed (rps) = air density
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