Solid carbon produced during the simulation of re-entry in the Titan atmosphere by means of an arc-driven flow facility

Antonio Esposito, Marcello Lappa, Gennaro Zuppardi, Christophe Allouis, Barbara Apicella, Mario Commodo, Patrizia Minutolo, Carmela Russo

Research output: Contribution to conferencePaper

Abstract

Spacecraft entry into Titan’s atmosphere has been investigated using a dedicated (Small Planetary Entry Simulator) facility (SPES). While in earlier works much attention was paid to the joint numerical-experimental simulation of typical entry physical parameters (namely, heat flux and total enthalpy); in the present analysis we focus on some unexpected results recently obtained at the University of Naples, in collaboration with CNR, in the framework of a new test campaign dedicated to various planetary atmospheres (including Titan itself). Such findings concern the presence of a carbon-like substance on the surface of the measuring probes used for the experiments, which seem to align with the results yielded by other authors with other strategies (an inductive plasma torch). We have confirmed the carbonaceous nature of such particulate matter via various diagnostic techniques such as SEM, Raman, FT-IR, UV-visible absorption and fluorescence spectroscopy, GC-MS and TGA. The present work is devoted to the presentation of such results together with a critical discussion of the novelty relating to the present experimental approach (arc plasma versus inductive torch) and an analysis of the chemical-physical differences pertaining to the carbon obtained with the two different methods.

Conference

ConferenceThe International Conference on Flight vehicles, Aerothermodynamics and Re-entry Missions and Engineering
Abbreviated titleFAR 2019
CountryItaly
CityMonopoli
Period30/09/193/10/19

Fingerprint

Plasma torches
Reentry
Carbon
Fluorescence spectroscopy
Absorption spectroscopy
Spacecraft
Heat flux
Enthalpy
Simulators
Plasmas
Scanning electron microscopy
Experiments

Keywords

  • entry simulation
  • solid carbon
  • SPES facility

Cite this

Esposito, A., Lappa, M., Zuppardi, G., Allouis, C., Apicella, B., Commodo, M., ... Russo, C. (2019). Solid carbon produced during the simulation of re-entry in the Titan atmosphere by means of an arc-driven flow facility. Paper presented at The International Conference on Flight vehicles, Aerothermodynamics and Re-entry Missions and Engineering, Monopoli, Italy.
Esposito, Antonio ; Lappa, Marcello ; Zuppardi, Gennaro ; Allouis, Christophe ; Apicella, Barbara ; Commodo, Mario ; Minutolo, Patrizia ; Russo, Carmela. / Solid carbon produced during the simulation of re-entry in the Titan atmosphere by means of an arc-driven flow facility. Paper presented at The International Conference on Flight vehicles, Aerothermodynamics and Re-entry Missions and Engineering, Monopoli, Italy.8 p.
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Esposito, A, Lappa, M, Zuppardi, G, Allouis, C, Apicella, B, Commodo, M, Minutolo, P & Russo, C 2019, 'Solid carbon produced during the simulation of re-entry in the Titan atmosphere by means of an arc-driven flow facility' Paper presented at The International Conference on Flight vehicles, Aerothermodynamics and Re-entry Missions and Engineering, Monopoli, Italy, 30/09/19 - 3/10/19, .

Solid carbon produced during the simulation of re-entry in the Titan atmosphere by means of an arc-driven flow facility. / Esposito, Antonio; Lappa, Marcello; Zuppardi, Gennaro; Allouis, Christophe; Apicella, Barbara; Commodo, Mario; Minutolo, Patrizia; Russo, Carmela.

2019. Paper presented at The International Conference on Flight vehicles, Aerothermodynamics and Re-entry Missions and Engineering, Monopoli, Italy.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Solid carbon produced during the simulation of re-entry in the Titan atmosphere by means of an arc-driven flow facility

AU - Esposito, Antonio

AU - Lappa, Marcello

AU - Zuppardi, Gennaro

AU - Allouis, Christophe

AU - Apicella, Barbara

AU - Commodo, Mario

AU - Minutolo, Patrizia

AU - Russo, Carmela

PY - 2019/9/30

Y1 - 2019/9/30

N2 - Spacecraft entry into Titan’s atmosphere has been investigated using a dedicated (Small Planetary Entry Simulator) facility (SPES). While in earlier works much attention was paid to the joint numerical-experimental simulation of typical entry physical parameters (namely, heat flux and total enthalpy); in the present analysis we focus on some unexpected results recently obtained at the University of Naples, in collaboration with CNR, in the framework of a new test campaign dedicated to various planetary atmospheres (including Titan itself). Such findings concern the presence of a carbon-like substance on the surface of the measuring probes used for the experiments, which seem to align with the results yielded by other authors with other strategies (an inductive plasma torch). We have confirmed the carbonaceous nature of such particulate matter via various diagnostic techniques such as SEM, Raman, FT-IR, UV-visible absorption and fluorescence spectroscopy, GC-MS and TGA. The present work is devoted to the presentation of such results together with a critical discussion of the novelty relating to the present experimental approach (arc plasma versus inductive torch) and an analysis of the chemical-physical differences pertaining to the carbon obtained with the two different methods.

AB - Spacecraft entry into Titan’s atmosphere has been investigated using a dedicated (Small Planetary Entry Simulator) facility (SPES). While in earlier works much attention was paid to the joint numerical-experimental simulation of typical entry physical parameters (namely, heat flux and total enthalpy); in the present analysis we focus on some unexpected results recently obtained at the University of Naples, in collaboration with CNR, in the framework of a new test campaign dedicated to various planetary atmospheres (including Titan itself). Such findings concern the presence of a carbon-like substance on the surface of the measuring probes used for the experiments, which seem to align with the results yielded by other authors with other strategies (an inductive plasma torch). We have confirmed the carbonaceous nature of such particulate matter via various diagnostic techniques such as SEM, Raman, FT-IR, UV-visible absorption and fluorescence spectroscopy, GC-MS and TGA. The present work is devoted to the presentation of such results together with a critical discussion of the novelty relating to the present experimental approach (arc plasma versus inductive torch) and an analysis of the chemical-physical differences pertaining to the carbon obtained with the two different methods.

KW - entry simulation

KW - solid carbon

KW - SPES facility

M3 - Paper

ER -

Esposito A, Lappa M, Zuppardi G, Allouis C, Apicella B, Commodo M et al. Solid carbon produced during the simulation of re-entry in the Titan atmosphere by means of an arc-driven flow facility. 2019. Paper presented at The International Conference on Flight vehicles, Aerothermodynamics and Re-entry Missions and Engineering, Monopoli, Italy.