The flow features and performance parameters of a swirl-injected hybrid rocket burning H2O2 and HDPE are numerically investigated by means of axisymmetric Reynolds-averaged Navier-Stokes simulations. Several firing tests of a 300 N hybrid rocket are rebuilt, with satisfactory results for both the average regression rate and the chamber pressure, confirming how the adopted numerical approach can be successfully employed in the design of hybrid rockets. The dynamics of the swirling flow are studied, analyzing the strong decay of the swirling motion along the engine, and the effect of swirl intensity on the fuel regression rate and the propellant mixing process.
Modeling of swirl injection effects in a H2O2-HDPE hybrid rocket / Fabiani, Marco; Migliorino, MARIO TINDARO; Bianchi, Daniele; Nasuti, Francesco; Franco, Massimo; Barato, Francesco; Bellomo, Nicolas; Pavarin, Daniele. - (2023). (Intervento presentato al convegno Aerospace Europe Conference 2023 - 10th EUCASS - 9th CEAS tenutosi a Lausanne; Switzerland).
Modeling of swirl injection effects in a H2O2-HDPE hybrid rocket
Marco Fabiani;Mario Tindaro Migliorino;Daniele Bianchi;Francesco Nasuti;
2023
Abstract
The flow features and performance parameters of a swirl-injected hybrid rocket burning H2O2 and HDPE are numerically investigated by means of axisymmetric Reynolds-averaged Navier-Stokes simulations. Several firing tests of a 300 N hybrid rocket are rebuilt, with satisfactory results for both the average regression rate and the chamber pressure, confirming how the adopted numerical approach can be successfully employed in the design of hybrid rockets. The dynamics of the swirling flow are studied, analyzing the strong decay of the swirling motion along the engine, and the effect of swirl intensity on the fuel regression rate and the propellant mixing process.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
