Gülhan, Ali and Esser, Burkard and Koch, Uwe and Fischer, Michael and Magens, Eggert and Hannemann, Volker (2017) Characterization of High-Enthalpy-Flow Environment for Ablation Material Tests Using Advanced Diagnostics. AIAA Journal. American Institute of Aeronautics and Astronautics (AIAA). DOI: 10.2514/1.J056312 ISSN 0001-1452
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Abstract
For reliable material qualification in high-enthalpy flows, detailed characterization of material and flow parameters is essential. Therefore, the flowfield of arc-heated facility L3K, which has been intensively used for ablation material tests in Europe, has been characterized using advanced diagnostic tools. For the first time, the complete flow chain from the reservoir to the freestream and shock layer has been studied using sophisticated measurement techniques. Rotational and vibrational temperatures of nitrogen molecules were measured in the reservoir, freestream, and shock layer using coherent anti-Stokes Raman scattering. In addition, the temperatures of NO molecules in the freestream were measured by means of laser-induced fluorescence. Emission spectroscopy provided quantitative data of shock-layer temperatures. For the measurement of the freestream velocity and electron density, a microwave interferometer has been used. In addition, the pitot pressure and cold wall heat flux rate have been measured by means of intrusive probes. Parallel to the experimental investigation, numerical rebuilding of the flowfield has been conducted by using the DLR, German Aerospace Center’s TAU code. The results of the multitemperature model provide further insight into the flow physics of the facility.
Item URL in elib: | https://elib.dlr.de/116475/ | |||||||||||||||||||||
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Document Type: | Article | |||||||||||||||||||||
Title: | Characterization of High-Enthalpy-Flow Environment for Ablation Material Tests Using Advanced Diagnostics | |||||||||||||||||||||
Authors: |
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Date: | December 2017 | |||||||||||||||||||||
Journal or Publication Title: | AIAA Journal | |||||||||||||||||||||
Refereed publication: | Yes | |||||||||||||||||||||
Open Access: | Yes | |||||||||||||||||||||
Gold Open Access: | No | |||||||||||||||||||||
In SCOPUS: | Yes | |||||||||||||||||||||
In ISI Web of Science: | Yes | |||||||||||||||||||||
DOI : | 10.2514/1.J056312 | |||||||||||||||||||||
Publisher: | American Institute of Aeronautics and Astronautics (AIAA) | |||||||||||||||||||||
ISSN: | 0001-1452 | |||||||||||||||||||||
Status: | Published | |||||||||||||||||||||
Keywords: | High Enthalpy Flow, Arc Heated Facility L3K, Flow Diagnostic, CARS, LIF, MW Interferometer, CFD, TAU Code | |||||||||||||||||||||
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 - Wiederverwendbare Raumfahrtsysteme und Antriebstechnologie | |||||||||||||||||||||
Location: | Köln-Porz | |||||||||||||||||||||
Institutes and Institutions: | Institute for Aerodynamics and Flow Technology > Supersonoc and Hypersonic Technology Institute for Aerodynamics and Flow Technology > Spacecraft, GO Institute of Propulsion Technology > Engine Measurement Systems | |||||||||||||||||||||
Deposited By: | Gülhan, Dr.-Ing. Ali | |||||||||||||||||||||
Deposited On: | 14 Dec 2017 09:57 | |||||||||||||||||||||
Last Modified: | 23 Feb 2019 00:22 |
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