SRM Internal Flow Tests and Computational Fluid Dynamic Analysis Volume III Titan, ASRM, and Subscale Motor Analyses

摘要

A computational fluid dynamics (CFD) analysis has been performed on the aft slot region of the Titan IV Solid Rocket Motor Upgrade (SRMU). This analysis was performed in conjunction with MSFC structural modeling of the propellant grain to determine if the flow field induced stresses would adversely alter the propellant geometry to the extent of causing motor failure. The results of the coupled CFD/stress analysis have shown that there is a continual increase of flow field resistance at the aft slot due to the aft segment propellant grain being progressively moved radially toward the centerline of the motor port.