Accession Number : ADA956116

Title :   Prediction of Aerodynamic Characteristics of Cruciform Missiles to High Angles of Attack Utilizing a Distributed Vortex Wake.

Descriptive Note : Technical rept. 1 Jan-28 Sep 79,

Corporate Author : NIELSEN ENGINEERING AND RESEARCH INC MOUNTAIN VIEW CA

Personal Author(s) : Smith, C. A. ; Nielsen, J. N.

Report Date : JAN 1980

Pagination or Media Count : 94

Abstract : This report describes improved methods for calculating the aerodynamic characteristics of cruciform missiles to high angles of attack. These include a more accurate method of calculating the effects of the vorticity generated by crossflow over the body between the first and second set of fins, an improved fin trailing vortex model, and numerous minor improvements. The improved methods have been incorporated into an existing computer program that computes component forces and moments on a cruciform missile, including effects of arbitrary roll and control deflection.

Descriptors :   *GUIDED MISSILES, *CRUCIFORM CONFIGURATIONS, *AERODYNAMIC CHARACTERISTICS, FINS, CROSS FLOW, ANGLE OF ATTACK, VORTICES, WAKE, AERODYNAMIC STABILITY, ROLL, COMPUTER PROGRAMS, AERODYNAMIC FORCES, VELOCITY.

Subject Categories : Guided Missiles

Distribution Statement : APPROVED FOR PUBLIC RELEASE