Comparison of Heat Flux Gages for High Enthalpy Flows - NASA Ames and IRS

Comparison of Heat Flux Gages for High Enthalpy Flows - NASA Ames and IRS

This article is a companion to a paper on heat flux measurements as initiated under a Space Act Agreement in 2011. The current focus of this collaboration between the Institute of Space Systems (IRS) of the University of Stuttgart and NASA Ames Research Center is the comparison and refinement of dia...

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Hauptverfasser: Loehle, Stefan, Nawaz, Anuscheh, Herdrich, Georg, Fasoulas, Stefanos, Martinez, Edward, Raiche, George
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Fluid Mechanics And Thermodynamics
Instrumentation And Photography
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Nawaz, Anuscheh
Herdrich, Georg
Fasoulas, Stefanos
Martinez, Edward
Raiche, George
description This article is a companion to a paper on heat flux measurements as initiated under a Space Act Agreement in 2011. The current focus of this collaboration between the Institute of Space Systems (IRS) of the University of Stuttgart and NASA Ames Research Center is the comparison and refinement of diagnostic measurements. A first experimental campaign to test different heat flux gages in the NASA Interaction Heating Facility (IHF) and the Plasmawindkanaele (PWK) at IRS was established. This paper focuses on the results of the measurements conducted at IRS. The tested gages included a at face and hemispherical probe head, a 4" hemispherical slug calorimeter, a null-point calorimeter from Ames and a null-point calorimeter developed for this purpose at IRS. The Ames null-point calorimeter was unfortunately defective upon arrival. The measured heat fluxes agree fairly well with each other. The reason for discrepancies can be attributed to signal-to-noise levels and the probe geometry.
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Instrumentation And Photography
title Comparison of Heat Flux Gages for High Enthalpy Flows - NASA Ames and IRS
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