In this work, we discuss a CFD model to investigate two-phase flows within solid rocket motors nozzles. An Eulerian-Eulerian model able to deal with polydispersion is validated against two test cases present in literature in order to verify the model capability to recover the crucial multiphase flows features and to assess performances estimation. Numerical simulations are performed on Zefiro 9A nozzle, third stage of the Vega launcher, with the aim to evaluate the influence of key-features, like particles dimension, polydispersion, and nozzle geometry, have on the two-phase losses. Numerical results are then compared with experimental data, showing the capability of the model to represent, with good correlation, the overall performance of the motor.
Numerical simulation of multiphase flows in solid rocket motors nozzles / Grossi, M.; Sereno, A.; Bianchi, D.; Favini, B.. - (2022). [10.2514/6.2022-3270]
Numerical simulation of multiphase flows in solid rocket motors nozzles
Grossi M.
;Sereno A.;Bianchi D.;Favini B.
2022
Abstract
In this work, we discuss a CFD model to investigate two-phase flows within solid rocket motors nozzles. An Eulerian-Eulerian model able to deal with polydispersion is validated against two test cases present in literature in order to verify the model capability to recover the crucial multiphase flows features and to assess performances estimation. Numerical simulations are performed on Zefiro 9A nozzle, third stage of the Vega launcher, with the aim to evaluate the influence of key-features, like particles dimension, polydispersion, and nozzle geometry, have on the two-phase losses. Numerical results are then compared with experimental data, showing the capability of the model to represent, with good correlation, the overall performance of the motor.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.