9th International Workshop on Radiation of High Temperature Gases for Space Missions

Session

Measurement Techniques

MT

13 Sept 2022, 16:05

Auditório (Biblioteca Municipal - Santa Maria - Azores -Portugal)

75. Spectroscopic Signatures of Common Spacecraft Materials under Representative LEO Re-Entry Trajectories

David Leiser

13/09/2022, 16:20

Measurement Techniques

Introduction

The missing understanding of the disintegration of spacecraft structures during the atmospheric entry flight is the main driving parameter for the calculation of ground impact risk. Additionally, the full demise of the spacecraft becomes increasingly important, because of the rapidly increasing number of Low Earth Orbit (LEO) which undergo uncontrolled entry after the...

80. CHARACTERISATION OF A SPATIALLY RESOLVED VUV SPECTROSCOPY SYSTEM FOR SHOCK TUBE FLOWS

Maïlys Buquet

13/09/2022, 16:45

Please see attached PDF.

Kind regards,

Maïlys

96. An investigation into the role of the chemical models in the enthalpy rebuilding procedure of Inductively Coupled Plasma facilities through sample-based Sobol’ indices

Enrico Anfuso (Vrije Universiteit Brussels)

13/09/2022, 17:10

Ground testing has always been essential for aerospace development. As an example, they are a key component in the design process and qualification of thermal protection materials for re-entry systems. They also have a crucial role to tackle the problem of space debris for which the end-of-life disposal through aerothermal demise in atmospheric entry is largely promoted. In such context,...

73. ADVANCES IN THE EXPERIMENTAL SPECTRAL EMISSIVITY DETERMINATION BY DUAL-COLOUR PYROMETERS IN MATERIALS FOR SPACE VEHICLES TPS APPLICATIONS IN ATMOSPHERIC RE-ENTRY

Carlo Purpura (CIRA)

16/09/2022, 11:00

Measurement Techniques

Background of the study
Thanks to the improvements performed in the application of the dual-colour pyrometers for the temperature measurement of the exposed surface of the samples at the hot hypersonic plasma, now it is possible to analyse qualitatively the trend of the material surface spectral emissivity of a sample or an assembled model during the development of a test run carried out...

90. Volumetric investigation of plasma radiation by means of light field deconvolution

Martin Eberhart, Dr Stefan Loehle (Institute of Space Systems)

16/09/2022, 11:25

Investigation of plasma radiation in an arcjet driven facility is demanding due to severely limited optical access and very dynamic processes. This complicates volumetric measurements, which are important for the understanding of many flow phenomena. In this paper, we present our recent advancements in the field of light field deconvolution. Originally developed in the domain of microscopy,...

101. Characterization of an air-xenon operated electric thruster plume through optical emission spectroscopy

Federico Bariselli (von Karman Institute for Fluid Dynamics)

16/09/2022, 11:50

In the future, Air-Breathing Electric Propulsion (RAM-EP) systems may enable low-altitude missions over long lifetimes. The European consortium “AETHER” is currently designing a RAM-EP prototype for ground testing. In the context of this project, an experimental effort has been conducted to characterize the Particle Flow Generator (PFG), which is responsible for providing the RAM-EP system...

113. REFLECTOMETRY DIAGNOSTICS FOR ATMOSPHERIC ENTRY

Ricardo Ferreira

16/09/2022, 12:15

Insight on the plasma properties of high-speed ionized flows is key for the validation of predictive aerothermodynamic tools for atmospheric entry applications. Namely, plasma radiation will be highly dependent on the flow electron densities. We propose a novel reflectrometry/interferometry instrument specifically tailored for atmospheric entry applications.

The state-of-the-art of...

77. EMISSION SPECTROSCOPY OF LOW DENSITY AIR SHOCK TUBE FLOWS ABOVE 10 KM/S

Tobias Hermann (University of Oxford)

16/09/2022, 12:40

Please find the abstract in the attached pdf.