• Lateral/Divert Jet Interactions

Lateral and/or divert jet thrusters are now being widely used on state-of-the-art missile systems for aerodynamics control and maneuverability at higher speeds/higher altitudes where conventional control surfaces become ineffective. Such thrusters typically operate for short durations (i.e. 10-15 ms) and the resultant plume interacts strongly with the missile aerodynamic flow often producing large regions of separated flow on the missile surface. The modeling of the these transient effects and their net effect on system performance is an extremely challenging task requiring accurate simulation of transient turbulence characteristics, afterburning in separated regions, and particulate interactions.

Perrell, E.R., Shipman, J., Kannepalli, C., Kenzakowski, D.C., and Dash, S.M., “Higher Altitude Missile Divert Jet Calculations and Related Fluid Physics Studies,” 2001 JANNAF EPTS/SPIRITS Joint Meeting, Brooks AFB, San Antonio, TX, Nov. 6-8, 2001.

Dash, S.M., Perrell, E.R., Arunajatesan, S., and Kannepalli, C., “Lateral Jet Aerodynamic Interaction Simulations For Dynamic Pressure Loads,” AIAA Paper No. 2000-2036, 6th AIAA/CEAS Aeroacoustics Conference, Lahaina, Hawaii, June 12-14, 2000.

Perrell, E., and Dash, S.M., "Transient Simulation and Preliminary Data Comparisons for Interceptor Missile Divert Jet Interactions," 2000 JANNAF EPTS & SPIRITS User Group Joint Meeting, Nellis Air Force Base, Las Vegas, NV, May 15-19, 2000.

Dash, S.M., Perrell, E.R., Kenzakowski, and Chidambaram, N., “Turbulent Effects on Missile Lateral Control/Divert Jet Interactions,” AIAA-99-0809, 37th AIAA Aerospace Sciences Meeting and Exhibit, Reno, NV, January 11–14, 1999.