Investigation of the Flow In Cold Condition at the Exit of a Supersonic Combustor Test Bench

For studies of hypersonic flows and supersonic combustion in ground test facilities, three devices can be used as ram accelerators, shock tunnels and supersonic combustor test benches. These devices can reproduce, on the ground, similar conditions to those in real flight at a certain altitude and sp...

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Main Authors: Jefte da Silva Guimarães, Valeria Serrano Faillace Oliveira Leite, Demerval Carinhana Junior, Marco Antônio Sala Minicci
Format: Article
Language:English
Published: Instituto de Aeronáutica e Espaço (IAE) 2020-10-01
Series:Journal of Aerospace Technology and Management
Subjects:
Online Access:https://www.jatm.com.br/jatm/article/view/1190
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author Jefte da Silva Guimarães
Valeria Serrano Faillace Oliveira Leite
Demerval Carinhana Junior
Marco Antônio Sala Minicci
author_facet Jefte da Silva Guimarães
Valeria Serrano Faillace Oliveira Leite
Demerval Carinhana Junior
Marco Antônio Sala Minicci
author_sort Jefte da Silva Guimarães
collection DOAJ
description For studies of hypersonic flows and supersonic combustion in ground test facilities, three devices can be used as ram accelerators, shock tunnels and supersonic combustor test benches. These devices can reproduce, on the ground, similar conditions to those in real flight at a certain altitude and speed. In the case of the supersonic combustor test bench (SCTB), it simulates the same flow conditions inside the combustor of a scramjet. The SCTB consists basically of a combustion chamber or vitiated air generator unit, where the air is heated, and a nozzle, where the air is accelerated to the desired test speed. The supersonic combustor to be tested is directly coupled to the nozzle exit of the SCTB. Ultimately, it was necessary to use a transition piece to connect the nozzle to the combustor to be tested, because the nozzle exit has a circular section and the combustor entrance has a rectangular one. This work aims to present the process of characterizing the cold flow along the SCTB of the Institute for Advanced Studies (IEAv) using the schlieren technique. The interference of the transition piece in obtaining the required flow conditions at the exit of the SCTB or the entrance of the combustor was mainly evaluated.
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spelling doaj.art-72da4be3b22b43fd95fff50107ff653b2022-12-22T02:14:08ZengInstituto de Aeronáutica e Espaço (IAE)Journal of Aerospace Technology and Management2175-91462020-10-01121Investigation of the Flow In Cold Condition at the Exit of a Supersonic Combustor Test BenchJefte da Silva GuimarãesValeria Serrano Faillace Oliveira LeiteDemerval Carinhana JuniorMarco Antônio Sala MinicciFor studies of hypersonic flows and supersonic combustion in ground test facilities, three devices can be used as ram accelerators, shock tunnels and supersonic combustor test benches. These devices can reproduce, on the ground, similar conditions to those in real flight at a certain altitude and speed. In the case of the supersonic combustor test bench (SCTB), it simulates the same flow conditions inside the combustor of a scramjet. The SCTB consists basically of a combustion chamber or vitiated air generator unit, where the air is heated, and a nozzle, where the air is accelerated to the desired test speed. The supersonic combustor to be tested is directly coupled to the nozzle exit of the SCTB. Ultimately, it was necessary to use a transition piece to connect the nozzle to the combustor to be tested, because the nozzle exit has a circular section and the combustor entrance has a rectangular one. This work aims to present the process of characterizing the cold flow along the SCTB of the Institute for Advanced Studies (IEAv) using the schlieren technique. The interference of the transition piece in obtaining the required flow conditions at the exit of the SCTB or the entrance of the combustor was mainly evaluated.https://www.jatm.com.br/jatm/article/view/1190ScramjetSupersonic flowGround testing facilitiesSupersonic nozzleSchlieren technique
spellingShingle Jefte da Silva Guimarães
Valeria Serrano Faillace Oliveira Leite
Demerval Carinhana Junior
Marco Antônio Sala Minicci
Investigation of the Flow In Cold Condition at the Exit of a Supersonic Combustor Test Bench
Journal of Aerospace Technology and Management
Scramjet
Supersonic flow
Ground testing facilities
Supersonic nozzle
Schlieren technique
title Investigation of the Flow In Cold Condition at the Exit of a Supersonic Combustor Test Bench
title_full Investigation of the Flow In Cold Condition at the Exit of a Supersonic Combustor Test Bench
title_fullStr Investigation of the Flow In Cold Condition at the Exit of a Supersonic Combustor Test Bench
title_full_unstemmed Investigation of the Flow In Cold Condition at the Exit of a Supersonic Combustor Test Bench
title_short Investigation of the Flow In Cold Condition at the Exit of a Supersonic Combustor Test Bench
title_sort investigation of the flow in cold condition at the exit of a supersonic combustor test bench
topic Scramjet
Supersonic flow
Ground testing facilities
Supersonic nozzle
Schlieren technique
url https://www.jatm.com.br/jatm/article/view/1190
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AT demervalcarinhanajunior investigationoftheflowincoldconditionattheexitofasupersoniccombustortestbench
AT marcoantoniosalaminicci investigationoftheflowincoldconditionattheexitofasupersoniccombustortestbench