Computational Modeling of Sense and Destroy Armor (SADARM) Submunition Separation/Collision.

Sense and Destroy Armor SADARM is a high-priority Army program that experienced an initial design flaw, leading to submunition collisions. Computational fluid dynamics CFD, including Chimera overset technology, has recently been applied to solve this problem. The CFD modeling has provided significant physical insight into the complex unsteady flow field associated with the SADARM submunitions during the separationejection process. CFD simulations have predicted that, with the addition of the fins on the trailing submunition, separation will occur, and collisions will be avoided.