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Two-Phase Flow Solver for Hypersonic Entry Flows in a Dusty Martian Atmosphere

Majid, A. and Bauder, U. and Herdrich, G. and Fertig, Markus (2016) Two-Phase Flow Solver for Hypersonic Entry Flows in a Dusty Martian Atmosphere. Journal of Thermophysics and Heat Transfer, 30 (2), pp. 418-428. American Institute of Aeronautics and Astronautics (AIAA). DOI: 10.2514/1.T4542 ISSN 0887-8722

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Official URL: https://doi.org/10.2514/1.T4542

Abstract

The occurrence of global dust storms on Mars is one of the most spectacular meteorological events in the solar system. The following question arises: What influence might dust particles have on the heat flux onto a heat shield of a planetary probe entering the Martian atmosphere? For the numerical simulation of such an entry, the sequential iterative nonequilibrium algorithm program previously developed at the Institut für Raumfahrtsysteme is used. A five-species model (CO2, O2, CO, O and C) is implemented in the code. The Euler–Lagrangian approach is used for the modeling and simulation of the solid dust particles in the hypersonic entry flow. An adequate model for the drag force computation is implemented. The heat transfer model of the particles consists of convective heating and radiation cooling. With these models, heat fluxes onto the heat shield of the Mars sample return orbiter spacecraft due to impingement of particles are computed and compared with the convective heat fluxes from the continuum flowfield for the exemplary conditions of test case 3. From these simulations, it is found that the ratio of heat flux due to impingement of the particles compared to convective heat flux of the flowfield gas is very low. However, particles with larger radii may generate significant heat fluxes and erosion on the wall of the particle.

Item URL in elib:https://elib.dlr.de/105828/
Document Type:Article
Title:Two-Phase Flow Solver for Hypersonic Entry Flows in a Dusty Martian Atmosphere
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Majid, A.Istituto per la Ricerca SocialeUNSPECIFIED
Bauder, U.bauder (at) irs.uni-stuttgart.deUNSPECIFIED
Herdrich, G.herdrich (at) irs.uni-stuttgart.deUNSPECIFIED
Fertig, MarkusMarkus.Fertig (at) dlr.deUNSPECIFIED
Date:10 March 2016
Journal or Publication Title:Journal of Thermophysics and Heat Transfer
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:30
DOI :10.2514/1.T4542
Page Range:pp. 418-428
Editors:
EditorsEmailEditor's ORCID iD
UNSPECIFIEDAIAAUNSPECIFIED
Publisher:American Institute of Aeronautics and Astronautics (AIAA)
ISSN:0887-8722
Status:Published
Keywords:Mars, Dust, Heat Flux, Particle
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):R - Raumfahrzeugsysteme - Numerische Verfahren und Simulation
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Spacecraft
Deposited By: Fertig, Dr. Markus
Deposited On:13 Sep 2016 08:44
Last Modified:05 Nov 2020 17:22

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