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This paper contends that proponents of various forms of Indigenous Archaeology base their argument on a paradigm of Aboriginal essentialism ("Aboriginalism") that is derived from the long-discarded concept of Primitive Man. The development of Aboriginalism is explored as a mutually reinforcing process between Indigenous and Western scholars, based on evidence that is at best anecdotal. The adoption of this flawed concept by archaeologists, Western publics, and Indigenous people themselves has led to problematic assumptions that have negative consequences for both the practice of archaeology and for the lives of those who identify themselves as Indigenous. Archaeologists can usefully challenge the historical assumptions on which the paradigm of Aboriginalism is based: the belief that local societies have endured as stable entities over great periods of time, and the consequent projection of contemporary ethnic identities into the deep past. Such a challenge confronts a significant element of the intellectual climate that allows marginalized groups to exist as permanent aliens in the societies of settler nations.

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An experimental study was conducted in the NASA Langley Low-Turbulence Pressure Tunnel (LTPT) to evaluate a suction sidewall boundary-layercontrol (BLC) technique used in testing two-dimensional highlift airfoils. Sidewall BLC is required to maintain spanwise twedimensionality of the flow over the airfoil at large angles of attack. A supercritical-type high-lift airfoil, quipped with a double-slotted flap and a leadingedge slat, was used for the study which was conducted at a Mach number of 0.2 and Reynolds numbers based on chord of 9 and 16 million. The sidewall BLC technique, which features distributed suction through porous endplates connected to a venting system, was able to control sidewall boundary-layer separation and maintain two-dimensional flow over the high-lift configuration for both Reynolds numbers tested. Discus-I Mathematician, Low-Turbulence Pressure lunnel Section I' Senior Engineer Scientist

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