Design of an Infinite-Swept-Wing Glove for In-Flight Discrete-Roughness-Element Experiment
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Copyright 2014 by Indian Institute of Space Science and Technology, Thiruvananthapuram, India. Published by the American Institute of Aeronautics and Astronautics, Inc. The Subsonic Aircraft Roughness Glove Experiment is an in-flight experiment designed to meet the NASA Environmentally Responsible Aviation project requirements. The goal of the experiment was to demonstrate the discrete-roughness-element technology to delay transition on a swept wing at transport-relevant conditions and subject to crossflow instability. In this paper, a redesign of that experiment is described for a different aircraft (Gulfstream-IIB), meeting the same requirements, but using a new methodology that promotes infinite-swept-wing flow on the glove test article. The new glove has the designation TAMU-0706. Increasing the demonstrated capabilities of both natural laminar flow and discrete roughness elements is a large step toward practical laminar flow on transport aircraft. Moreover, the infinite-swept-wing flow methodology not only increases the effective test region of the wing glove, but is well adapted for code-validation studies of discrete roughness element and other laminar-flowcontrol technologies.
author list (cited authors)
Tufts, M. W., Reed, H. L., & Saric, W. S.
complete list of authors
Tufts, Matthew W||Reed, Helen L||Saric, William S