Accession Number : ADA192408

Title :   The Effect of a Turbulent Airstream on a Vertically-Launched Missile at High Angles of Attack.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s) : Roane, Donald P , Jr

PDF Url : ADA192408

Report Date : Dec 1987

Pagination or Media Count : 72

Abstract : The purpose of this thesis is to initiate an investigation of the response of a shipboard surface-to-air missile launched vertically into a region of turbulence at high angles of attack. A review was conducted on the effects of asymmetric vortices, turbulent flowfields, and the marine atmospheric environment on a slender body of revolution. Turbulence mapping of a wind tunnel with installed turbulence-generating grids was conducted using hot-wire anemometry. The resultant turbulence intensities and length scales were analyzed as a function of the downstream distance and the grid mesh-width/bar-diameter ratio. Turbulence intensity was found to decrease, while the length scale increased, with increasing distance from the generating grid. Both the turbulence intensity and length scale increased with an increase in the grid bar diameter. Keywords: Vertical launch, Missile, Turbulence, High angle, Attack, Vortices.

Descriptors :   *SURFACE TO AIR MISSILES, *TURBULENCE, AIR FLOW, ASYMMETRY, BODIES OF REVOLUTION, DIAMETERS, FLOW FIELDS, HIGH ANGLES, INTENSITY, LAUNCHING, LENGTH, MARINE ATMOSPHERES, OCEAN ENVIRONMENTS, RANGE(DISTANCE), SCALE, SHIPBOARD, SLENDER BODIES, TURBULENT FLOW, VERTICAL ORIENTATION, VORTICES, WIND TUNNEL TESTS

Subject Categories : Guided Missile Traj, Accuracy and Ballistics

Distribution Statement : APPROVED FOR PUBLIC RELEASE