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Finite Rate Surface Catalysis Modelling of PM1000 and SiC Employing the DLR CFD Solver TAU

Fertig, Markus (2015) Finite Rate Surface Catalysis Modelling of PM1000 and SiC Employing the DLR CFD Solver TAU. 8th European Symposium on Aerothermodynamics for Space Vehicles, 02. - 06. Mar. 2015, Lisbon, Portugal.

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Official URL: http://www.congrexprojects.com/Custom/15A01/Papers/Room%202.1/Wednesday/Gas%20surface%20interaction%20IV/91654fertig.pdf

Abstract

Within the frame of the ESA research project 'Development of an Innovative Validation Strategy of Gas-Surface Interaction Modelling for Re-Entry Applications' (GSI) the pressure dependency of surface catalysed Oxygen and Nitrogen recombination on PM1000 and SiC at temperatures relevant for the re-entry of a space vehicle has been investigated for the first time. The measurements of Massuti-Ballester show, that oxygen recombination significantly depends on pressure. At 1400 K the oxygen recombination probability on C/C-SiC decreases with increasing oxygen partial pressure. Since the Eley-Rideal recombination mechanism is expected to be pressure independent at this temperature, the finding supports the modelling that a high temperature Langmuir-Hinshelwoood mechanism is responsible for the pressure dependency. A similar dependency was observed for PM1000 at 1500 K. The new data allows for an improved modelling of the oxygen recombination probability on SiC and PM1000.

Item URL in elib:https://elib.dlr.de/95670/
Document Type:Conference or Workshop Item (Speech)
Additional Information:ESA Special Publication
Title:Finite Rate Surface Catalysis Modelling of PM1000 and SiC Employing the DLR CFD Solver TAU
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Fertig, MarkusMarkus.Fertig (at) dlr.deUNSPECIFIED
Date:March 2015
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-8
Series Name:Conference Proceedings online
Status:Published
Keywords:catalysis, non-equilibrium, reacting gas flow, CFD
Event Title:8th European Symposium on Aerothermodynamics for Space Vehicles
Event Location:Lisbon, Portugal
Event Type:international Conference
Event Dates:02. - 06. Mar. 2015
Organizer:ESA
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:19 Mar 2015 15:27
Last Modified:01 Dec 2018 19:51

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