The present paper aims to investigate the intimate effect of the propellant grain geometry on Pressure Oscillations (PO) onset and characteristics in aft-finocyl Solid Rocket Motors (SRMs). With this purpose, P80 SRM, first stage of VEGA launcher, and a mock-up version of POD-Y scaled at the size of P80 SRM, named Big POD-Y, are assumed as test cases. The numerical simulations are performed by exploiting the Q1D approach of AGAR (Aerodinamically Generated Acoustic Resonance) model, based on the assumption that aeroacoustic lock-in represents one of the main driving mechanisms for PO onset.

Aeroacoustics of Aft-Finocyl Solid Rocket Motors / Laureti, Mariasole; Rossi, Giacomo; Favini, Bernardo. - (2018). (Intervento presentato al convegno AIAA Propulsion and Energy Forum 2018 Joint Propulsion Conference tenutosi a Cincinnati, Ohio, USA).

Aeroacoustics of Aft-Finocyl Solid Rocket Motors

Laureti Mariasole;Rossi Giacomo;Favini Bernardo
2018

Abstract

The present paper aims to investigate the intimate effect of the propellant grain geometry on Pressure Oscillations (PO) onset and characteristics in aft-finocyl Solid Rocket Motors (SRMs). With this purpose, P80 SRM, first stage of VEGA launcher, and a mock-up version of POD-Y scaled at the size of P80 SRM, named Big POD-Y, are assumed as test cases. The numerical simulations are performed by exploiting the Q1D approach of AGAR (Aerodinamically Generated Acoustic Resonance) model, based on the assumption that aeroacoustic lock-in represents one of the main driving mechanisms for PO onset.
2018
AIAA Propulsion and Energy Forum 2018 Joint Propulsion Conference
Solid Rocket Prupulsion, Aeroacoustics
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Aeroacoustics of Aft-Finocyl Solid Rocket Motors / Laureti, Mariasole; Rossi, Giacomo; Favini, Bernardo. - (2018). (Intervento presentato al convegno AIAA Propulsion and Energy Forum 2018 Joint Propulsion Conference tenutosi a Cincinnati, Ohio, USA).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1188694
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