Aero-thermal re-entry sensitivity analysis using DSMC and a high dimensional model representation-based approach

Research output: Contribution to conferencePaper

Abstract

This paper presents a sensitivity analysis for the hypersonic aero-thermal convective heat transfer from the free molecular to the slip-flow regime for cylindrical and cubic geometries. The analyses focus on a surface-averaged heat transfer coefficient at various atmospheric conditions. The sensitivity analyses have been performed by coupling a High Dimensional Model Representation based approach and a Direct Simulation Monte Carlo code. The geometries have been tested with respect to different inputs parameters; altitude, attitude, wall temperature and geometric characteristics. After the initial sensitivity analyses, the N-dimensional surrogate models of the surface-averaged heat transfer coefficient have been defined and tested. Hereby, a shape-based DSMC mesh refinement correction factor for reducing the overall analyses computational times is also presented.

Conference

Conference7th European Conference on Space Debris
CountryGermany
CityDarmstadt
Period18/04/1721/04/17
Internet address

Fingerprint

Reentry
Heat transfer coefficients
Sensitivity analysis
Geometry
Hypersonic aerodynamics
Heat transfer
Temperature
Hot Temperature
Monte Carlo simulation

Keywords

  • DSMC
  • heat transfer
  • sensitivity analysis
  • surrogate modeling
  • re-entry analysis

Cite this

Falchi, A., Minisci, E., Vasile, M., & Kubicek, M. (2017). Aero-thermal re-entry sensitivity analysis using DSMC and a high dimensional model representation-based approach. Paper presented at 7th European Conference on Space Debris, Darmstadt, Germany.
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abstract = "This paper presents a sensitivity analysis for the hypersonic aero-thermal convective heat transfer from the free molecular to the slip-flow regime for cylindrical and cubic geometries. The analyses focus on a surface-averaged heat transfer coefficient at various atmospheric conditions. The sensitivity analyses have been performed by coupling a High Dimensional Model Representation based approach and a Direct Simulation Monte Carlo code. The geometries have been tested with respect to different inputs parameters; altitude, attitude, wall temperature and geometric characteristics. After the initial sensitivity analyses, the N-dimensional surrogate models of the surface-averaged heat transfer coefficient have been defined and tested. Hereby, a shape-based DSMC mesh refinement correction factor for reducing the overall analyses computational times is also presented.",
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author = "Alessandro Falchi and Edmondo Minisci and Massimiliano Vasile and Martin Kubicek",
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Falchi, A, Minisci, E, Vasile, M & Kubicek, M 2017, 'Aero-thermal re-entry sensitivity analysis using DSMC and a high dimensional model representation-based approach' Paper presented at 7th European Conference on Space Debris, Darmstadt, Germany, 18/04/17 - 21/04/17, .

Aero-thermal re-entry sensitivity analysis using DSMC and a high dimensional model representation-based approach. / Falchi, Alessandro; Minisci, Edmondo; Vasile, Massimiliano; Kubicek, Martin.

2017. Paper presented at 7th European Conference on Space Debris, Darmstadt, Germany.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Aero-thermal re-entry sensitivity analysis using DSMC and a high dimensional model representation-based approach

AU - Falchi, Alessandro

AU - Minisci, Edmondo

AU - Vasile, Massimiliano

AU - Kubicek, Martin

PY - 2017/4/18

Y1 - 2017/4/18

N2 - This paper presents a sensitivity analysis for the hypersonic aero-thermal convective heat transfer from the free molecular to the slip-flow regime for cylindrical and cubic geometries. The analyses focus on a surface-averaged heat transfer coefficient at various atmospheric conditions. The sensitivity analyses have been performed by coupling a High Dimensional Model Representation based approach and a Direct Simulation Monte Carlo code. The geometries have been tested with respect to different inputs parameters; altitude, attitude, wall temperature and geometric characteristics. After the initial sensitivity analyses, the N-dimensional surrogate models of the surface-averaged heat transfer coefficient have been defined and tested. Hereby, a shape-based DSMC mesh refinement correction factor for reducing the overall analyses computational times is also presented.

AB - This paper presents a sensitivity analysis for the hypersonic aero-thermal convective heat transfer from the free molecular to the slip-flow regime for cylindrical and cubic geometries. The analyses focus on a surface-averaged heat transfer coefficient at various atmospheric conditions. The sensitivity analyses have been performed by coupling a High Dimensional Model Representation based approach and a Direct Simulation Monte Carlo code. The geometries have been tested with respect to different inputs parameters; altitude, attitude, wall temperature and geometric characteristics. After the initial sensitivity analyses, the N-dimensional surrogate models of the surface-averaged heat transfer coefficient have been defined and tested. Hereby, a shape-based DSMC mesh refinement correction factor for reducing the overall analyses computational times is also presented.

KW - DSMC

KW - heat transfer

KW - sensitivity analysis

KW - surrogate modeling

KW - re-entry analysis

UR - https://conference.sdo.esoc.esa.int/

M3 - Paper

ER -

Falchi A, Minisci E, Vasile M, Kubicek M. Aero-thermal re-entry sensitivity analysis using DSMC and a high dimensional model representation-based approach. 2017. Paper presented at 7th European Conference on Space Debris, Darmstadt, Germany.