Wind Tunnel renovation, flow verification and flapping wing analysis.

Download
Author
Hickle, Curtis
Date
2006-06Advisor
Jones, Kevin
Second Reader
Hobson, Garth
Metadata
Show full item recordAbstract
The Naval Postgraduate School (NPS) Micro-Air Vehicle (MAV) wind tunnel was refurbished in this study. This wind tunnel has a 61 by 38 centimeter test section with a contraction ratio of 6.75, and testing speeds up to 9 meters per second (m/s). The objectives of this work were to create a high quality, customized facility for further MAV study, and to fully characterize the wake of the MAV at a plane downstream of the model. Extensive repairs were made to the wind tunnel intake, test section, and fan. The flow field produced in the tunnel was analyzed with hot wire anemometry. The turbulence intensity ranged from .7% to .5% for freestream velocities of 2 m/s to 5 m/s. The velocity variation across the test section ranged from .251% to .125%. A model of the NPS MAV was placed in the test section and the wake was studied with and without the main wing, and in vertical and horizontal orientations. The wake was characterized with hot wire anemometry and flow visualization techniques at various flapping frequencies and freestream velocities.
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.
-
Modification and calibration of the Naval Postgraduate School Academic Wind Tunnel
Baldocchi, Robert L. (Monterey, California. Naval Postgraduate School, 1992-12);Since the early 1980's, the Academic Wind Tunnel has operated with only one half its designed power section. Resultant flow qualities have limited the use of this facility. A damping screen was installed in the settling ... -
Analysis of the Effect of Porous Wall Interference on Transonic Airfoil Flutter
Castro, B.M.; Jones, K.D.; Ekaterinaris, J.A.; Platzer, M.F. (2001);A numerical investigation of the influence of the wind tunnel walls on the transonic, two-degree-of-freedom, bending/torsion, flutter characteristics of the NLR7301 section is carried out in the time domain. A parallelized, ... -
Multi-block parallel Navier-Stokes simulation of unsteady wind tunnel and ground interference effects
Castro, Breno Moura (2001-09);A numerical investigation of unsteady wind tunnel and ground interference effects is carried out in the time domain to study the transonic flutter characteristics of the NLR 7301 section inside a wind tunnel and the thrust ...