BOEING COMPANY, THE
NASA intends to build upon research conducted under contract NNL04AA11B, previous Task Order NNL05AD23T, having developed and demonstrated the capabilities and expertise for propulsion airframe aeroacoustic integration experimentation of jet integration with both SOA and BWB aircraft configurations. In this task, propulsion airframe aeroacoustic experimentation shall be performedwith an open rotor propulsion noise simulator integrated with both SOA and BWB aircraft configuration models. The PAA objectives discussed above requires a high quality aeroacoustic facility such as Boeing's Low Speed Aeroacoustics Facility (LSAF) used in task NNL05AD23T because of the open jet, large test section size, forward flight, instrumentation and other special capabilities installed for task NNL05AD23T. A Contractor owned 12-inch diameter open rotor counter-rotating rig shall be the propulsion noise simulator. A SOA aircraft configuration and a version of the Boeing BWB shall be the two aircraft configurations. If the NASA owned 89-inch span 450L BWB wind tunnel model that was recently tested in task NNL05AD23T is deemed of suitable scale, NASA will make that available for this proposed task (See GFP Item 6.1). Alternatively, for both the SOA and the BWB aircraft models, in order to balance cost and timeframe with technical requirements, it may be suitable to use simplified versions (i.e., planform shapes) of the airframes as was done in the recent NNLO5AD23T task. Use of simplified airframes or simplified parts of airframes (tail surfaces) may allow for efficient implementation of instrumentation, noise reduction approaches or key variables such as vertical and horizontal surfaces, while still retaining key features such as the planform shape and realistic trailing edge shapes.
The basic scope of the experimental plan outlined in the above paragraph shall also include a broadband point source as an additional noise source similar to that used in the recent NNL05AD23Ttask. The purpose of using this noise source in this task is to extend the database for this simpler noise source to the tail locations on the SOA configuration and for the angle of attack parameter on both configurations.
4.1, Monthly Tech Progress Reports
4.2, Kick-Off Presentation
4.3, ARRA Reporting
4.4, NASA Form 533 Reporting
4.5, Proposed Expiment Plan Report
4.6, Relevent Geometry Files
4.7, Final Presentation,
4.8, Eng. Documentation of Experiment Report
4.9, PAA Analysis & Modeling Results Report
4.10, Final Report