Performance measurements, flow visualization, and numerical simulation of a crossflow fan

Download
Author
Seaton, M. Scot.
Date
2003-03Advisor
Hobson, Garth V.
Second Reader
Shreeve, Raymond P.
Metadata
Show full item recordAbstract
A 12-inch diameter, 1.5-inch span crossflow fan test apparatus was constructed and tested using the existing Turbine Test Rig (TTR) as a power source. Instrumentation was installed and a data acquisition program was developed to measure the performance of the crossflow fan. Performance measurements were taken over a speed range of 1,000 to 7,000 RPM. Results comparable to those measured by Vought Systems Division of LTV Aerospace in 1975 were obtained. At 6,000 RPM, a thrust-to-power ratio of one was determined; however, at 3,000 RPM twice the thrust-to-power ratio was measured. Flow visualization was conducted using dye-injection methods. Performance and flow visualization results were compared to predictions obtained from 2-D numerical simulation conducted using Flo++, a commercial PC-based computational fluid dynamics software package by Softflo. A possible design for a light civil V/STOL aircraft was suggested using a similar crossflow fan apparatus for both lift and propulsion.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.Collections
Related items
Showing items related by title, author, creator and subject.
-
Investigation of performance improvements including application of inlet guide vanes to a cross-flow fan
Cordero, Samuel F. (Monterey, California. Naval Postgraduate School, 2009-09);The inherent characteristics of a cross-flow fan allowing for easy thrust vectoring as well as potential airfoil boundary layer control make it an attractive propulsive means for a theoretical vertical takeoff and landing ... -
Experimental investigation of a six inch diameter, four inch span cross-flow fan
Ulvin, Jessica M. (Monterey California. Naval Postgraduate School, 2008-06);Investigations into the use of a cross-flow fan as a potential source of propulsion and lift have arisen due to the cross-flow fan's geometry, light weight and safety by shielding from bystanders. The application of a ... -
Experimental and computational investigation of cross-flow fan propulsion for lightweight VTOL aircraft
Hobson, Garth V.; Cheng, W.T.; Seaton, M. Scot; Gannon, Anthony; Platzer, Max F. (ASME, 2004-06);Cross-flow fan propulsion has not been seriously considered for aircraft use since an Vought Systems Division (VSD) study for the U.S. Navy in 1975. A recent conceptual design study of light-weight, single seat VTOL ...