Frozen Sonic Flow Method Applied to Arc-Heated Facilities for Planetary Re-Entry Simulation

Aerotecnica Missili & Spazio

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Field Value
 
Title Frozen Sonic Flow Method Applied to Arc-Heated Facilities for Planetary Re-Entry Simulation
 
Creator Esposito, Antonio
Aponte, Francesco
 
Subject Aerothermodynamics
planetary entry; arc wind tunnels
simulation, wind tunnel testing
 
Description The most important parameter in low-density arc-heated ows for atmosphere entry simulations is the centerline totalenthalpy Hcl which is strictly related to the average total enthalpy Hne (bulk enthalpy at nozzle exit). In this paperthe "sonic ow method" widely used for Hcl calculation in mono-atomic and diatomic molecules gas mixtures, has beenextended to polyatomic molecules gas mixtures. By means of a reduced-scale arc-jet facility and using Nitrogen N2 as hotfeeding gas, three mixtures were investigated by adding cold gases like O2, CO2 and CH4 through a mixer just before thenozzle. Using bulk enthalpies ranging between 5 and 30 [MJ=Kg] the calculated enthalpy ratios were Hcl=Hne = 1:38for N2
 
Publisher Associazione Italiana di Aeronautica e Astronautica (AIDAA)
 
Contributor
 
Date 2018-10-22
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
experimental; simulation
 
Format application/pdf
 
Identifier http://131.114.27.37/index.php/AMS/article/view/333
10.19249/ams.v97i3.333
 
Source Aerotecnica Missili & Spazio; Vol 97, No 3 (2018); 153-162
0365-7442
 
Language eng
 
Relation http://131.114.27.37/index.php/AMS/article/view/333/pdf
 
Rights Copyright (c) 2018 Aerotecnica Missili & Spazio
 

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