Sidejet aerodynamics interaction effect of the missile. I - Estimation of missile sidejet interaction force by modeling in pressure field

摘要

This paper presents results from wind-tunnel experiments, CFD analyses, and flight tests to investigate missile sidejet interaction effects. ^Two wind tunnel experiments were conducted: a cold gas test, in which a gaseous nitrogen sidejet was used, and a hot gas test, in which an impulsive propellant with a 1.0-ms burn time was used. ^From these experiments and the CFD analyses, we propose a method for predicting the aerodynamic interaction force by using a scale parameter associated with the pressure field around the sidejet injection. ^The validity of this prediction method was confirmed by accelerometer results from actual flight tests. ^(Author)