• Founda, D., , M. Tombrou, , D. P. Lalas, , and D. N. Asimakopoulos, 1997: Some measurements of turbulence characteristics over complex terrain. Bound.-Layer Meteor., 83 , 221245.

    • Search Google Scholar
    • Export Citation
  • Frehlich, R., 1997: Effects of wind turbulence on coherent Doppler lidar performance. J. Atmos. Oceanic Technol., 14 , 5475.

  • Frehlich, R., 2000: Simulation of coherent Doppler lidar performance for space-based platforms. J. Appl. Meteor., 39 , 245262.

  • Frehlich, R., 2001: Estimation of velocity error for Doppler lidar measurements. J. Atmos. Oceanic Technol., 18 , 16281639.

  • Frehlich, R., , L. Cornman, , and R. Sharman, 2001: Simulation of three-dimensional turbulent velocity fields. J. Appl. Meteor., 40 , 246258.

    • Search Google Scholar
    • Export Citation
  • Hill, R. J., 1996: Corrections to Taylor’s frozen turbulence approximation. Atmos. Res., 40 , 153175.

  • Hinze, J. O., 1959: Turbulence: An Introduction to Its Mechanism and Theory. McGraw-Hill, 586 pp.

  • Kaimal, J. C., , and J. J. Finnigan, 1994: Atmospheric Boundary Layer Flows: Their Structure and Measurement. Oxford University Press, 289 pp.

    • Search Google Scholar
    • Export Citation
  • McCoy, R., 1999: Modern Exterior Ballistics: The Launch and Flight Dynamics of Symmetric Projectiles. Schiffer, 328 pp.

  • Monin, A. S., , and A. M. Yaglom, 1975: Statistical Fluid Mechanics: Mechanics of Turbulence. Vol. 2. MIT Press, 874 pp.

  • Shiau, B-S., , and Y-B. Chen, 2002: Observation on wind turbulence characteristics and velocity spectra near the ground at the coastal region. J. Wind Eng. Ind. Aerodyn., 90 , 16711681.

    • Search Google Scholar
    • Export Citation
  • Stuart, A., , and J. K. Ord, 1991: Classical Inference and Relationship. Vol. 2, Kendall’s Advanced Theory of Statistics, Oxford University Press, 1323 pp.

    • Search Google Scholar
    • Export Citation
  • Teunissen, H. W., 1980: Structure of mean winds and turbulence in the planetary boundary layer over rural terrain. Bound.-Layer Meteor., 19 , 187221.

    • Search Google Scholar
    • Export Citation
  • Wyngaard, J. C., , and S. F. Clifford, 1977: Taylor’s hypothesis and high-frequency turbulence spectra. J. Atmos. Sci., 34 , 922929.

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Effects of Atmospheric Turbulence on Ballistic Testing

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  • 1 National Center for Atmospheric Research,* and Cooperative Institute for Research in the Environmental Sciences, University of Colorado, Boulder, Colorado
  • | 2 National Center for Atmospheric Research,* Boulder, Colorado
  • | 3 U.S. Army Aberdeen Proving Ground, Aberdeen, Maryland
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Abstract

The effects of atmospheric turbulence on munition target scatter are determined from numerical simulations of ballistic trajectories through many realizations of realistic simulated turbulent wind fields. A technique is evaluated for correcting for the effects of turbulence on ballistic testing procedures by using a line of sonic anemometer measurements taken along the trajectory path. The metric used to evaluate the correction is the difference between the target impact scatter produced with and without the use of the anemometers in the trajectory calculations. The improvement in the testing procedure as measured by this metric is determined as a function of the number of sonic anemometers in the line and the sonic averaging time interval. The performance of the simulations is also compared with data from a field test for a standard small-caliber munition, and the predicted and observed target scatter are in good qualitative agreement, supporting the feasibility of the approach.

* The National Center for Atmospheric Research is sponsored by the National Science Foundation

Corresponding author address: Dr. Rod Frehlich, National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80303. Email: rgf@cires.colorado.edu

Abstract

The effects of atmospheric turbulence on munition target scatter are determined from numerical simulations of ballistic trajectories through many realizations of realistic simulated turbulent wind fields. A technique is evaluated for correcting for the effects of turbulence on ballistic testing procedures by using a line of sonic anemometer measurements taken along the trajectory path. The metric used to evaluate the correction is the difference between the target impact scatter produced with and without the use of the anemometers in the trajectory calculations. The improvement in the testing procedure as measured by this metric is determined as a function of the number of sonic anemometers in the line and the sonic averaging time interval. The performance of the simulations is also compared with data from a field test for a standard small-caliber munition, and the predicted and observed target scatter are in good qualitative agreement, supporting the feasibility of the approach.

* The National Center for Atmospheric Research is sponsored by the National Science Foundation

Corresponding author address: Dr. Rod Frehlich, National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80303. Email: rgf@cires.colorado.edu

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