Considerations on the effect of wind-tunnel walls on oscillating air forces for two-dimensional subsonic compressible flow

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100 1 ‡aRunyan, Harry L.
245 1 0 ‡aConsiderations on the effect of wind-tunnel walls on oscillating air forces for two-dimensional subsonic compressible flow / ‡cHarry L. Runyan and Charles E. Watkins.
260 ‡aWashington, D.C. : ‡bNational Advisory Committee for Aeronautics, ‡c1951.
300 ‡a18 p. : ‡bill. ; ‡c28 cm.
490 0 ‡aNational Advisory Committee for Aeronautics ; ‡vno. 2552
500 ‡aNACA TN No. 2552.
500 ‡a"December 1951."
504 ‡aIncludes bibliographical references.
520 3 ‡aThis paper treats the effect of wind-tunnel walls on the oscillating two-dimensional air forces in a compressible medium. The walls are simulated by the usual method of placing impages at appropriate distances above and below the wing. An important result shown is that, for certain conditions of wing frequency, tunnel height, and Mach number, the tunnel and wing may form a resonant system so that the forces on the wing are greatly changed from the condition of no tunnel walls.
538 ‡aMode of access: Internet.
650 0 ‡aOscillations.
650 0 ‡aFlutter (Aerodynamics)
650 0 ‡aVibration (Aeronautics)
650 0 ‡aAir flow.
650 0 ‡aWind tunnel walls.
700 1 ‡aWatkins, Charles E.
710 1 ‡aUnited States. ‡bNational Advisory Committee for Aeronautics.
730 0 ‡aTechnical Report Archive & Image Library (TRAIL)
899 ‡a39015086495663
CID ‡a100168974
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