Aerodynamic design of a Coanda induced force and thruster anti-torque systemA general method of analysis of the external and internal aerodynamics of a generic Coanda induced circulation anti-torque system is presented. The technique gives moment about the yaw axis and download induced on the boom as well as the force developed by an aft jet. The external flows including downwash, wake swirl and the boom circulation are considered. The internal flow and losses through the duct, fan, blown slots, cascades and nozzle are considered on a step-by-step basis. Limited comparison is made with open data where available.
Document ID
19920031795
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Velkoff, Henry R. (NASA Ames Research Center; Sterling Federal Systems, Inc. Moffett Field, CA, United States)
Tung, Chee (NASA Ames Research Center; U.S. Army, Aeroflightdynamics Directorate, Moffett Field CA, United States)