In the last few decades, vortex injection has been proposed as a possible solution to main hybrid rocket motor drawbacks. The aim of this work is to understand the effects of the swirl intensity and the postchamber length on a 300 N hybrid rocket motor by using H 2 O 2 as the oxidizer and high-density polyethylene as the solid fuel with a classical cylindrical port grain. Three different injection plates have been designed in order to obtain three different geometrical swirl numbers; at the same time, three different postchamber lengths have been used. The numerical and experimental investigations have proved that swirl injection allows a good motor efficiency without the need for a long postchamber. From the analysis of fuel consumption data, a linear relation between the grain surface regression rate and the intensity of the swirling flow given by vortex injection has been obtained. This information could be used in future design phases to tailor the fuel regression in order to achieve the best packaging of a hybrid rocket motor for a desired mission profile.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Regression Rate Design Tailoring Through Vortex Injection in Hybrid Rocket Motors


    Contributors:
    Franco, M. (author) / Barato, F. (author) / Paccagnella, E. (author) / Santi, M. (author) / Battiston, A. (author) / Comazzetto, A. (author) / Pavarin, D. (author)

    Published in:

    Publication date :

    2019-10-31


    Size :

    13 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Effect of Diaphragms on Regression Rate in Hybrid Rocket Motors

    Kumar, C. Palani / Kumar, Amit | AIAA | 2013


    Numerical and Experimental Investigation on Vortex Injection in Hybrid Rocket Motors

    Bellomo, Nicolas / Barato, Francesco / Faenza, Martina et al. | AIAA | 2011



    Effect of swirl on the regression rate in hybrid rocket motors

    Kumar, C. Palani / Kumar, Amit | Elsevier | 2013


    Overview of Vortex Injected Hybrid Rocket Engines-Regression Rate Modeling

    Roy, Brian J. / Frederick, Robert A. | AIAA | 2016