Team: Dr. Artur Elias de Morais Bertoldi (CLP-UnB), Dr. Jungpyo Lee (CLP-UnB), Dr. Olexiy Shynkarenko (CLP-UnB), Dr. Artem Andrianov (CLP-UnB), Dr. Domenico Simone (CLP-UnB), Dr. Carlos Alberto Gurgel Veras (FT-ENM-UnB), Dr. Marcus Vinicius Girão de Morais (FT-ENM-UnB), Dr. Patrick Hendrick (ATM-ULB), MSc. Mohammed Bouziane (ATM-ULB).

The CLP-UnB partners in this research are: Faculty of Technology (FT) – Mechanical Engineering Department (ENM) – University of Brasília (UnB) and Aero-Thermo-Mechanics Department (ATM) at Université libre de Bruxelles (ULB).

Abstract: In chemical propulsion systems, combustion instabilities are intrinsic phenomena and can occur if the motor design is not developed in order to control the burning process. Nowadays there is not a general methodology to avoid the oscillatory combustion in hybrid rocket motors. UnB-CPL develops theoretical and experimental studies of combustion instability in hybrid rocket motor. The aim of the research is the development of a systematic approach to characterize the combustion instability of hybrid motor during conceptual design phase.

ACOUSTIC CHARACTERIZATION

Modal identification of the motor acoustic cavities that may cause combustion instabilities of the acoustic nature.

NON-ACOUSTIC INSTABILITIES

• Investigation of the variables related to liquid oxidizer that influences the oscillatory characteristics of the chamber.
• Feed system coupled combustion instability in hybrid motors.