Numerical investigation of the unsteady behaviour of side jet induced control concepts

Kurzfassung

In this study, the performance of side jet control for two different altitudes (10km/30km) was numerically investigated and compared with the effectiveness of secondary injection thrust vector control for a supersonic missile configuration for M = 7.0 and 6.2. This comparison also considered the behavior of the transient force signal caused by the side jet thrust increasing with time, resulting in a time delay between reaching the maximum side jet thrust and reaching the maximum induced force. It was shown that, in contrast to thrust vector control, the performance of side jet control decreases with increasing altitude as a result of a lower contribution of SWBLI to the total force. With respect to the SWBLI, it was found that the boundary layer state has a great influence on the SWBLI and affects the induced force to a certain extent