Franco Javier Bosi
University of Padua
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Featured researches published by Franco Javier Bosi.
50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference | 2014
Franco Javier Bosi; Fabio Trezzolani; Andrea Lucca Fabris; Marco Manente; Davide Melazzi; Daniele Pavarin
In the framework of the ”Helicon Plasma Thruster for Space Missions AO7048” research program, a zero-dimensional numerical model is developed in order to assess the propulsive performances of the plasma thruster when fed with different molecular gases as propellants. The zero-dimensional model developed consists of detailed kinetic schemes for bulk plasma reactions and surface processes; particle in cell simulations are performed to properly describe the behaviour of the charged particles at the exhaust plume so to obtain exhaust parameters for the global model. Given a set of input parameters, such as geometry and mass flow rate, the model is able to follow the time evolution of plasma main physical quantities, such as neutral and charge densities and the electron temperature, and to calculate thruster performances. The model is then linked to the genetic algorithm optimization toolbox in Matlab environment in order to obtain high performance configurations. Propellants considered are H2, O2, N2 and N2O.
50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference | 2014
Davide Melazzi; Vito Lancellotti; Fabio Trezzolani; Franco Javier Bosi; Marco Manente; Daniele Pavarin
Radiofrequency (RF) magnetized Helicon plasma sources have been proposed for the development of space thrusters, whose thrust efficiency and specific impulse depend on the power coupled into the plasma by the RF antenna that drives the discharge. In this work we report on a set of numerical experiments specifically conceived to optimize Helicon sources in terms of plasma parameters (e.g., gas species, plasma density, external magnetostatic field, neutral pressure), and the RF antenna shape. Results concerning the power coupled into the plasma and the antenna impedance for different antenna configurations and plasma parameters are presented and discussed.
50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference | 2014
Fabio Trezzolani; A. Selmo; Melazzi Melazzi Melazzi; V. Lancellotti; Marco Manente; A Lucca Fabris; Franco Javier Bosi; Daniele Pavarin
In this communication we report on a combined experimental-numerical activity thas was conducted to assess the antenna-plasma interaction within a Helicon plasma source for space thrusters. The experiment is based on a versatile, re-configurable set-up which allows testing mulitiple thruster configurations under different operating condtions, featuring a high-efficiency RF antenna. The numerical results were opbtained by means of various simulation tools for both RF circuit and antenna-plasma interface analysis; these tools were validated against experimental data. The results helped to improve our understanding of antenna-plasma coupling and the assessment/prediction of the RF system performance.
Plasma Processes and Polymers | 2018
Francesco Tampieri; Agata Giardina; Franco Javier Bosi; Alice Pavanello; Ester Marotta; Barbara Zaniol; Gabriele Neretti; Cristina Paradisi
Archive | 2013
Franco Javier Bosi; Guido Parissenti; M. Pessana; Daniele Pavarin
Plasma Processes and Polymers | 2018
Franco Javier Bosi; Francesco Tampieri; Ester Marotta; Roberta Bertani; Daniele Pavarin; Cristina Paradisi
ieee international workshop on metrology for aerospace | 2017
Fabio Trezzolani; Mirko Magarotto; Marco Manente; Daniele Moretto; Franco Javier Bosi; G. Gallina; P. de Carlo; Davide Melazzi; Daniele Pavarin; M. Pessana
Journal of Physics D | 2017
Franco Javier Bosi; Danil Dobrynin
International Electric Propulsion Conference | 2017
Fabio Trezzolani; Marco Manente; Mirko Magarotto; Elena Toson; Daniele Moretto; Daniele Pavarin; Franco Javier Bosi; Paola De Carlo; Davide Melazzi
COMSOL conference Munich 2016 | 2016
Franco Javier Bosi; Mirko Magarotto