Investigation of the Aerodynamic Characters of Ducted Fan System

Authors: Wang Bo , Guo Zheng , Wang Peng , Shan Shangqiu , Hou Zhongxi

Abstract:

This paper investigates the aerodynamic characters of a model ducted fan system, analyses the basic principle of the effect of thrust promotion and torque reduction, discovers the relationship between the revolutions per minute(RPM) of the fan and the characters of thrust, as well as system torque. Firstly a model ducted fan has been designed and manufactured according to the specific structure of flow field, then CFD simulation has been carried out to analyze such aerodynamics, finally bench tests have been used to validate the simulation results and system configuration.

Keywords: ducted fan, free vortex flow, stator blade, screw torque, thrust increase

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1055012

References:

[1] Peiqing L. The Theory and Application of Aircrew (M). Beijing Univ. of Aeronautic and Astronautic Press, 2006. (in Chinese)
[2] Frank C. Flying Eyes for Foot Soldiers-DARPA's Micro Air Vehicle-Honeywell MAV(J). Vertiflite Spring. 2006, 52(1).
[3] Larry Lipera, Jason D. Colbourne, Mark B. Tischler, et al. The Micro Craft iSTAR Micro Air Vehicle Control System Design and Testing(C). Washington, DC: 2001.
[4] Pflimlin J M, Hamel T, Soueres P, et al. A hierarchical control strategy for the autonomous navigation of a Ducted Fan Flying Robot(C). Orlando, Florida: 2006.
[5] Pflimlin J M, Soueres P B P. Modeling and attitude control analysis of a ducted-fan micro aerialvehicle(J). Control Engineering Practice. 2010(18).
[6] Oweis G.f., David Fry, Chesnakas C J. Development of a Tip-Leakage Flow-Part 2: Comparison Between the Ducted and Un-ducted Rotor(J). Journal of Fluids Engineering. 2006, 128(July): 765-773.
[7] Graf W E. Effects of Duct Lip Shaping and Various Control Devices on the Hover and Forward Flight Performance of Ducted Fan UAVs(D). Virginia Polytechnic Institute and State University, 2005.
[8] Andy Ko, Osgar John Ohanian, Gelhausen P. Ducted Fan UAV Modeling and Simulation in Preliminary Design(C). Hilton Head, South Carolina: 2007.