Eventos Anais de eventos
ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
NUMERICAL INVESTIGATION OF THE FLOW INSIDE A PILOT SUPERSONIC COMBUSTOR TEST BENCH
Submission Author:
Taiana Cortes , SP , Brazil
Co-Authors:
Taiana Cortes, Valéria Leite, Guilherme Borges Ribeiro, Débora Cristina Menezes Silva
Presenter: Taiana Cortes
doi://10.26678/ABCM.ENCIT2020.CIT20-0696
Abstract
The supersonic combustor test bench (SCTB) simulates the in-flight flow conditions at the entrance of the combustor of a scramjet (supersonic combustion ramjet). The SCTB used in this study is composed by vitiated air generator (VAG), used to heat the air, coupled to a supersonic nozzle which accelerates it. The study looks for a relationship between the desired conditions of temperature, Mach number, and the oxygen content, equal to 21%, at the SCTB exit, and the mass flow rate of the reagents (NGV, air and oxygen) at the entrance. For this purpose, the behavior of the hot flow along the test bench is numerically evaluated to generate the desired conditions at the entrance of the scramjet combustors to be tested. The expected result is the development of a methodology to manipulate the valves of the three reagents (O2, air, NGV), at the entrance of the SCTB, to control the test flow at the its exit, with the desired temperature and Mach number and also with O2 to maintain a 21% concentration at the outlet. The results can also provide data for the future analysis of the effectiveness of the nozzle geometry in generating the desired conditions.
Keywords
Scramjet, Computational simulation, ground test facility
DOWNLOAD PDF VIEW PRESENTATION
