During their operation, solid rocket boosters experience axial stresses caused among other things also by fluid mechanical loads from the internal flow. The accurate prediction of the flowfield is mandatory for an accurate prediction of axial stresses and strains during the mission. In the present Paper, a very efficient but still accurate approach is presented to simulate the internal flow featuring an erosive combustion process, which leads to a temporal variation of the fluid domain. The impact of the calculated fluid behavior on the calculation of axial strains is demonstrated using the example of a firing test, where it can be shown that by taking into account the fluid behavior a significant improvement on the axial strain prediction could be achieved compared to the previous method, in which the fluid mechanical impact partly had been neglected.
Simulation of Ariane 5 Solid Rocket Booster Deformation by Internal Ballistics
Journal of Propulsion and Power ; 37 , 1 ; 139-150
2020-07-28
12 pages
Article (Journal)
Electronic Resource
English
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