MARCO GROSSI

PhD Graduate

PhD program:: XXXIV


supervisor: Prof. Bernardo Favini

Thesis title: Low Order Q1D Modeling of Pressure Oscillations in Solid Rocket Motors

This Ph.D. research is focused on the study of pressure oscillations (PO) phenomenon which may occur during the operative time of Solid Rocket Motors (SRMs). Although PO do not usually compromise the final mission goals, they bring about thrust oscillations which may have a severe impact on the overall launcher system. The assessment of pressure oscillations amplitude and time windows of occurrence is thus necessary for the correct characterisation of the dynamic environment affecting launcher and payload. In the current state of the art, two physical phenomena are addressed as driving mechanism for PO onset in modern space launchers SRMs: hydrodynamic instabilities, related to vortex shedding, and thermoacoustic instability, related to aluminum distributed combustion. The first PO source occurs when vortical structures generation and dynamics lock in with chamber acoustics, giving rise to an aeroacoustic feedback loop. The second one arises when aluminum combustion rates fluctuations, produced by the burning droplets, are synchronized with the acoustic field. Thermoacoustic instabilities are thus thought to be a source of PO in SRMs. Pressure oscillations comprehension represents a very challenging task to accomplish. Indeed, the energy scale in which the phenomenon takes place is far weaker compared with the mean flowfield one. Moreover the involved physics is truly complex: an unsteady, multiphase, turbulent flow with heterogeneous combustion processes occurring in elaborated geometries. These issues also pose an obstacle to the investigation of the PO basic phenomenology: lab-scale experiments provide limited and incomplete results, DNS analysis are unthinkable due problem geometry size, whereas lighter CFD approach present high computational costs and modeling efforts. In this context, the research work is focused on the development of a low order Q1D model able to deal with both PO sources in SRMs. As a matter of fact, such formulation is hugely lighter than CFD and, once got over the modeling difficulties, may actually be able to deliver more details than analytical or semi-empirical methods. The novel Q1D methodology is based upon two main models: Aeroacoustically Generated Acoustic Resonance (AGAR) model and ThermoAcoustic Resonance (TAR) model. AGAR model was designed, validated and successfully applied at Department of Mechanical and Aerospace Engineering for the past ten years, mainly being employed for Vega SRMs PO prediction and reconstruction. It was built on a single-phase formulation, considering vortex-shedding phenomena as chief mechanism of PO onset. On the other hand, TAR model addresses uniquely thermoacoustics phenomena and has been wholly designed during the Ph.D. starting from multiphase multidimensional simulations carried out by means of an in-house code. This work aims to provide a detailed description of the two separate Q1D models concerning mathematical and numerical methods, physical fundamentals and the relative approximations. Validation is provided against two different test cases: ONERA C1xb for hydrodynamics instabilities and a numerical pipe-like SRM case regarding thermoacoustics. Finally, the application to an aft-finocyl SRM, namely Vega P80, is reported in order to show the Q1D model capability to recover pressure oscillations phenomenon in a configuration which is thought to present both hydrodynamic and thermoacoustic instabilities.

Research products

11573/1706242 - 2024 - Modeling and Analysis of Film Cooling in Oxygen-Kerosene Rocket Thrust Chambers
Cocirla, Gianluca; Grossi, Marco; Migliorino, Mario Tindaro; Bianchi, Daniele; Nasuti, Francesco - 04b Atto di convegno in volume
conference: AIAA Scitech Forum 2024 (Orlando, Florida, USA)
book: AIAA Scitech Forum 2024 - ()

11573/1724728 - 2024 - Conjugate heat transfer numerical simulations of a methane-oxygen liquid rocket engine
Migliorino, Mario Tindaro; Grossi, Marco; Fabiani, Marco; Latini, Beatrice; Fiore, Matteo; Sereno, Alessio; Bianchi, Daniele; Nasuti, Francesco; Simone, Domenico; Liuzzi, Daniele - 04b Atto di convegno in volume
conference: 2024 Space Propulsion Conference (Glasgow; Scotland)
book: Proceedings of the 2024 Space Propulsion Conference - ()

11573/1701180 - 2024 - Low-order modeling of combustion instability: a comprehensive analysis of the bkd test case
Zolla, Paolo Maria; Montanari, Alessandro; Grossi, Marco; Nasuti, Francesco; Armbruster, Wolfgang; Börner, Michael; Hardi, Justin - 04b Atto di convegno in volume
conference: AIAA SciTech Forum and Exposition, 2024 (Orlando, Florida, USA)
book: AIAA SciTech Forum and Exposition, 2024 - (9781624107115)

11573/1706200 - 2023 - Simplified Numerical Modeling of Film Cooling and Mixture Ratio Bias in Liquid Rocket Thrust Chambers
Cocirla, G.; Grossi, M.; Migliorino, M. T.; Bianchi, D.; Nasuti, F. - 04b Atto di convegno in volume
conference: Aerospace Europe Conference 2023 - 10th EUCASS - 9th CEAS (Lausanne; Switzerland)
book: Proceedings of the Aerospace Europe Conference 2023 - 10th EUCASS - 9th CEAS - ()

11573/1682601 - 2023 - Multiphase effects on solid rocket nozzle performance
Grossi, Marco; Sereno, Alessio; Bianchi, Daniele; Favini, Bernardo - 01a Articolo in rivista
paper: JOURNAL OF PROPULSION AND POWER (American Institute of Aeronautics & Astronautics:1801 Alexander Bell Drive, Suite 500:Reston, VA 20191:(800)639-2422, (703)264-7500, EMAIL: custserv@aiaa.org, INTERNET: http://www.aiaa.org/, Fax: (703)264-7657) pp. - - issn: 0748-4658 - wos: WOS:000995028100001 (3) - scopus: 2-s2.0-85184385899 (4)

11573/1682940 - 2023 - Role of Finite-Rate Kinetics on the Performance Predictions of Solid Rocket Motor Nozzles
Grossi, Marco; Sereno, Alessio; Bianchi, Daniele; Favini, Bernardo - 04b Atto di convegno in volume
conference: AIAA SciTech Forum 2023 (National Harbor)
book: AIAA SciTech Forum 2023 - (978-1-62410-699-6)

11573/1706260 - 2023 - Convective and radiative wall heat transfer evaluation in film-cooled liquid rocket thrust chambers
Migliorino, Mario Tindaro; Cocirla, Gianluca; Fabiani, Marco; Grossi, Marco; Bianchi, Daniele; Nasuti, Francesco - 04b Atto di convegno in volume
conference: 74th International Astronautical Congress, IAC 2023 (Baku, Azerbaijan)
book: Proceedings of the international astronautical congress, IAC - ()

11573/1706268 - 2023 - T(H)RUST: applied research activities on liquid rocket propulsion at Sapienza University of Rome
Nasuti, Francesco; Bianchi, Daniele; Migliorino, Mario Tindaro; Grossi, Marco; Fiore, Matteo; Rotondi, Marco; Zolla, Paolo Maria; Latini, Beatrice; Fabiani, Marco; Cocirla, Gianluca; Sereno, Alessio; Montanari, Alessandro; Barbato, Vincenzo - 04b Atto di convegno in volume
conference: IAC 2023 (Baku, Azerbaijan)
book: Proceedings of the International Astronautical Congress, IAC - ()

11573/1706224 - 2023 - Role of Multiphase Modeling on Nozzle Thermochemical Erosion in Solid Rocket Motors
Rotondi, Marco; Grossi, Marco; Migliorino, Mario Tindaro; Bianchi, Daniele - 04b Atto di convegno in volume
conference: AIAA Scitech 2023 Forum (National Harbor, MD, USA)
book: AIAA Scitech 2023 Forum - ()

11573/1710535 - 2022 - Q1d modeling of hydrodynamic instabilities in solid rocket motors
Grossi, M.; Bianchi, D.; Favini, B. - 01a Articolo in rivista
paper: ADVANCES IN AIRCRAFT AND SPACECRAFT SCIENCE (Daejeon : Techno-Press) pp. 479-491 - issn: 2287-528X - wos: WOS:000899093700007 (0) - scopus: 2-s2.0-85144993086 (0)

11573/1682941 - 2022 - Numerical simulation of multiphase flows in solid rocket motors nozzles
Grossi, M.; Sereno, A.; Bianchi, D.; Favini, B. - 04b Atto di convegno in volume
conference: AIAA AVIATION 2022 Forum (Chicago)
book: AIAA AVIATION 2022 Forum - (978-1-62410-635-4)

11573/1642247 - 2022 - Aerothermoacoustics Q1D modeling for solid rocket motors instabilities
Grossi, Marco; Bianchi, Daniele; Favini, Bernardo - 04b Atto di convegno in volume
conference: AIAA SCITECH 2022 Forum (San Diego, CA, USA)
book: AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2022 - (978-1-62410-631-6)

11573/1710532 - 2022 - Q1D modeling of hydrodynamic instabilities in solid rocket motors
Grossi, Marco; Bianchi, Daniele; Favini, Bernardo - 04b Atto di convegno in volume
conference: INTERNATIONAL CONFERENCE OF COMPUTATIONAL METHODS IN SCIENCES AND ENGINEERING (Heraklion; Greece)
book: AIP Conference Proceedings - (9780735442474)

11573/1710533 - 2022 - Vega P80 SRM pressure oscillations analysis by means of Q1D model
Grossi, Marco; Bianchi, Daniele; Favini, Bernardo - 04b Atto di convegno in volume
conference: AIAA AVIATION 2022 Forum (Chicago, USA)
book: AIAA AVIATION 2022 Forum - (9781624106354)

11573/1710534 - 2022 - Analysis of Pressure Oscillations within Vega Launchers First Stage SRMs
Grossi, Marco; Bianchi, Daniele; Favini, Bernardo - 04b Atto di convegno in volume
conference: 73rd International Astronautical Congress, IAC 2022 (Paris; France)
book: Proceedings of the International Astronautical Congress, IAC - ()

11573/1667882 - 2022 - Solid Rocket Motor Internal Ballistics Simulation Using Eulerian Multiphase Models
Grossi, Marco; Cocirla, Gianluca; Bianchi, Daniele; Favini, Bernardo - 04b Atto di convegno in volume
conference: 9th European Conference for Aeronautics and Space Sciences (Lille, France)
book: Proceedings of 9th European Conference for Aeronautics and Space Sciences - ()

11573/1620287 - 2021 - Analysis and reconstruction of zefiro 40 solid rocket motor static firing tests and extrapolation to flight
Bianchi, Daniele; Grossi, Marco; Favini, Bernardo; Serraglia, Ferruccio; Ierardo, Nicola - 04b Atto di convegno in volume
conference: AIAA Propulsion and energy forum 2021 (Virtual Event)
book: AIAA Propulsion and energy forum, 2021 - (9781624106118)

11573/1620266 - 2021 - Thermoacoustics Q1D modeling in solid rocket motors
Grossi, Marco; Bianchi, Daniele; Favini, Bernardo - 04b Atto di convegno in volume
conference: AIAA Propulsion and energy forum 2021 (Virtual Event)
book: AIAA propulsion and energy 2021 - (978-1-62410-611-8)

11573/1620292 - 2021 - Numerical simulation of thermoacoustic phenomena in aft-finocyl solid rocket motors
Grossi, Marco; Bianchi, Daniele; Favini, Bernardo - 04b Atto di convegno in volume
conference: AIAA Propulsion and Energy 2021 Forum (Virtual Event)
book: AIAA Propulsion and Energy Forum, 2021 - (978-1-62410-611-8)

11573/1458324 - 2020 - Static firing ballistic reconstruction modelling and performance extrapolation to flight in srms
Bianchi, D.; Grossi, M.; Favini, B.; Serraglia, F.; Ierardo, N.; Bucci, E.; Mucci, R. - 04b Atto di convegno in volume
conference: AIAA Propulsion and Energy 2020 Forum (Virtual event)
book: AIAA Propulsion and energy 2020 forum - (978-1-62410-602-6)

11573/1435906 - 2020 - Modeling multiphase effects on pressure oscillations in solid propulsion
Grossi, Marco; Bianchi, Daniele; Favini, Bernardo - 04b Atto di convegno in volume
conference: AIAA Propulsion and Energy 2020 Forum (Virtual Event)
book: AIAA Propulsion and Energy 2020 Forum Proceedings - (978-1-62410-602-6)

11573/1324259 - 2019 - Quasi-one dimensional model of pressure oscillations in aft-finocyl solid rocket motors: a critical evaluation of alternative closure sub-models and calibrations
Grossi, Marco; Laureti, Mariasole; Favini, Bernardo - 04b Atto di convegno in volume
conference: AIAA Propulsion and Energy Forum and Exposition, 2019 (Indianapolis, Indiana)
book: Proceedings of AIAA Propulsion and Energy 2019 Forum - (978-162410590-6)

11573/1348635 - 2019 - Aerodynamically Generated Acoustic Resonance (AGAR) Model Revisited and Refurbished
Grossi, Marco; Laureti, Mariasole; Favini, Bernardo - 04b Atto di convegno in volume
conference: EUCASS 2019 (Madrid; Spain)
book: EUCASS 2019 Proceedings - ()

11573/1219610 - 2018 - Immersed boundary method and centered scheme for the study of aero-acoustic field in SRMs
Laureti, Mariasole; Grossi, Marco; Rossi, Giacomo; Favini, Bernardo - 04b Atto di convegno in volume
conference: Space Propulsion (Siviglia, SP)
book: Space Propulsion 2018 - ()

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