Three-dimensional calculations of rotor-airframe interaction in forward flightA method for analyzing the mutual aerodynamic interaction between a rotor and an airframe model has been developed. This technique models the rotor implicitly through the source terms of the momentum equations. A three-dimensional, incompressible, laminar, Navier-Stokes solver in cylindrical coordinates was developed for analyzing the rotor/airframe problem. The calculations are performed on a simplified model at an advance ratio of 0.1. The airframe surface pressure predictions are found to be in good agreement with wind tunnel test data. Results are presented for velocity and pressure field distributions in the wake of the rotor.
Document ID
19930051943
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Zori, Laith A. J. (NASA Langley Research Center Hampton, VA, United States)
Mathur, Sanjay R. (NASA Langley Research Center Hampton, VA, United States)
Rajagopalan, R. G. (Iowa State Univ. of Science and Technology, Ames, United States)