Patent ID: 6997049
Filing Date: 2006-02-14
Classification: G01M,H01L

Abstract:
1. An open jet wind tunnel for aerodynamic and acoustic testing comprising: a nozzle having a nozzle opening with a nozzle opening area, a nozzle opening perimeter and a hydraulic diameter defined by multiplying the nozzle opening area by four and then dividing by the nozzle opening perimeter wherein the position of said nozzle opening is substantially fixed; a collector having a leading edge defining a collector inlet opening wherein portions of said leading edge and corresponding portions of said nozzle opening are non-uniformly spaced from one another; and said nozzle and said collector spaced from one another to define a test section between said nozzle opening and said collector inlet opening, wherein said test section has a length dimension four times or greater than the hydraulic diameter of said nozzle opening.