Method and system for gathering pressure signature data...

Details Method and system for gathering pressure signature data... Method and system for gathering pressure signature data...

2007-12-04

2007-12-04

Allen, Andre J. (Department: 2855)

Measuring and testing

Wind tunnel: aerodynamic wing and propeller study

C073S170020

Reexamination Certificate

active

11425909

ABSTRACT:
Disclosed is a method of and system for gathering off-body pressure signature data from a scaled model in a wind tunnel. The data is gathered using a probe having multiple longitudinally disposed static pressure ports. Because of the number of ports and their spacing, the probe is able to remain stationary in the tunnel for the entire range of Mach numbers and model positions to be tested. Thus, tunnel flow characteristics can be easily and effectively removed. The system also has an automated model positioning system which enables settings at different pitch, yaw, and roll angles. This enables the user to locate the model so that it can be traversed at a fixed distance above the probe while maintaining the desired angular orientation of the model. By repeatedly traversing the model at different angular orientations, a detailed and accurate off-body pressure distribution can be obtained. The wind tunnel test technique captures full off-body pressure signatures in a complete 360 degree azimuthal range.

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