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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


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
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Majid, A.Istituto per la Ricerca SocialeUNSPECIFIEDUNSPECIFIED
Fertig, MarkusUNSPECIFIEDhttps://orcid.org/0009-0006-2782-5354UNSPECIFIED
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 ISI Web of Science:Yes
Page Range:pp. 418-428
EditorsEmailEditor's ORCID iDORCID Put Code
Publisher:American Institute of Aeronautics and Astronautics (AIAA)
Keywords:Mars, Dust, Heat Flux, Particle
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transportation
DLR - Research area:Raumfahrt
DLR - Program:R RP - Space Transportation
DLR - Research theme (Project):R - Raumfahrzeugsysteme - Numerische Verfahren und Simulation (old)
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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