Comparison of Turbulence Models for an Internal Flow with Side Wall Mass Injection
ISTANBUL UNIV (TURKEY) DEPT OF MECHANICAL ENGINEERING
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Solid propellant rocket boosters SPRB are used extensively in aerospace activities when a strong thrust is needed as in the case of lifting off the satellites for space activities. Flow structures occurring within the SPRBs have drawn the attention of the researchers either experimentally, or as it happens increasingly today, computationally. The flow field inside the combustion chamber experiences different processes since the characteristic velocity throughout the chamber is on the order of Ma O10 exp-2, whereas the exit velocity is supersonic. Time dependent behavior of various processes, turbulence, combustion, as well as with the compressibility effects add intricacy into the simulation processes. Today, major study field for the SPRBs is the flow stability problem inside the combustion chamber, and its interaction with combustion and turbulence. This study is the first part of an ongoing research held in the Faculty of Mechanical Engineering at Istanbul Technical University ITU, to simulate the interaction of the turbulence, combustion and the acoustic field inside SPRBs. In this preliminary work, a computational study has been performed to identify the effect of various turbulence models on the calculations of cold flow field inside a model SPRB combustion chamber. A commercial flow solver, Fluent 6.1.22, has been employed for the computations.
- Fluid Mechanics
- Solid Propellant Rocket Engines