Heavy metal pollution from spillage at ore smelters and mills /

"August 1977.""Prepared under contract no. 68-01-0726."Includes bibliographical references (pages 102-103).Mode of access: Internet

Database for internal store carriage and jettison /

"Funding Numbers PE-62602F.""Final Report for Period September 1986 through September 1990.""November 1990."Includes bibliographical references (pages 39-40).Mode of access: Internet

Cavity Aeroacoustics /

"Technical paper presented at Store Carriage, Interaction and Release Conference, Bath, England.""62602F-2567-03-20.""June 1990."Includes bibliographical references (pages 7-8).Mode of access: Internet

Boundary layer transition and surface roughness effects in hypersonic flow /

"Calspan Report No. 6430-A-1.""Calspan Advanced Technology Center, Buffalo, New York.""Annual Report November 1, 1979 to November 1, 1980.""February 1981."Includes bibliographical references (page 36).Print reproduction.Air Force Contract No.Mode of access: Internet

Research on adaptive wall wind tunnels /

The objective of this research was to investigate the utility of the Calspan self-correcting wind tunnel for minimizing or eliminating wall interference effects in two-dimensional transonic flows when shock waves from the test model extend to the tunnel walls. This report summarizes the experimental research performed with two-dimensional airfoils in the Calspan self-correcting wind tunnel and the theoretical research accomplished in support of the experiments. The experiments were performed with airfoil models having 4% and 6% solid blockage. The initial experiments with the 6%-blockage model were devoted to determining a practical mode of operation when shock waves from the model extend to the wall. The most practical model is to use wall control to obtain the desired distribution of longitudinal velocity components for subcritical walls. The Mach number is then increased and the wall control is readjusted, sequentially, until the desired test condition is achieved. At the high Mach numbers of interest, however, the available wall control was limited locally, and tunnel system changes were required. A method is reported for analyzing self-correcting wind tunnels with porous walls."November 1978.""Final Report: May 1976 -- November 1977."Includes bibliograpic references (page 27).The objective of this research was to investigate the utility of the Calspan self-correcting wind tunnel for minimizing or eliminating wall interference effects in two-dimensional transonic flows when shock waves from the test model extend to the tunnel walls. This report summarizes the experimental research performed with two-dimensional airfoils in the Calspan self-correcting wind tunnel and the theoretical research accomplished in support of the experiments. The experiments were performed with airfoil models having 4% and 6% solid blockage. The initial experiments with the 6%-blockage model were devoted to determining a practical mode of operation when shock waves from the model extend to the wall. The most practical model is to use wall control to obtain the desired distribution of longitudinal velocity components for subcritical walls. The Mach number is then increased and the wall control is readjusted, sequentially, until the desired test condition is achieved. At the high Mach numbers of interest, however, the available wall control was limited locally, and tunnel system changes were required. A method is reported for analyzing self-correcting wind tunnels with porous walls.Report supported by the Air Force Systems Command and prepared by Calspan Corporation, Buffalo, New York, under Program Element,Mode of access: Internet