A Transonic Laminar-Flow Wing Glove Flight Experiment: Overview and Design Optimization
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The Subsonic Aircraft Roughness Glove Experiment (SARGE) is a hybrid natural laminar flow and passive laminar flow control flight test that will be carried out under the auspices of the NASA Environmentally Responsible Aviation initiative. The primary goals of the SARGE experiment are to 1) achieve natural laminar flow to 0.60 chord on the suction side at up to 22 million chord Reynolds number and 2) at conditions of at least 22 million chord Reynolds number, demonstrate the effectiveness of a passive array of discrete roughness elements in extending laminar flow beyond the natural transition location. The test will be conducted on a test article having 35 leading-edge sweep at 0.75 Mach and lift coefficient of at least 0.5. In cooperation with NASA Dryden Flight Research Center, Texas A&M has completed the optimized aerodynamic design of the wing glove, as well as flight test and instrumentation planning. 2012 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.