NUMERICAL INVESTIGATION OF UNSTEADY INTERACTION CHARACTERISTIC INDUCED BY IMPULSIVE JET

摘要

The numerical method of unsteady lateral jetinteraction is established. The divert control jetinteraction flowfield for ogive-cylinder-flareconfiguration are simulated numerically withdifferent inflow parameters. Detailed transientjet interaction flowfield structure is obtained.Variation characteristics of additional normalforce coefficient(ΔCy) and the additionalpitching moment coefficient(ΔCmz) with timeare analyzed. The comparison with the steadysolution shows that it's more appropriate toapply the unsteady method when the impulsivejet is applied.