Open AccessNon-Reacting studies on Transverse Injection Upstream of Aft Wall Angled Cavities
Author(s) -
S. Jeyakumar,
K. Karthik,
J. Sarathkumar Sebastin
Publication year - 2019
Publication title -
international journal of engineering and advanced technology
Language(s) - English
Resource type - Journals
ISSN - 2249-8958
DOI - 10.35940/ijeat.a1076.1291s419
Subject(s) - pitot tube , stagnation pressure , supersonic speed , mach number , mechanics , stagnation temperature , jet (fluid) , combustor , coaxial , diffuser (optics) , choked flow , nozzle , static pressure , materials science , rotational symmetry , mixing (physics) , flow (mathematics) , stagnation point , physics , optics , chemistry , thermodynamics , heat transfer , engineering , mechanical engineering , combustion , light source , organic chemistry , quantum mechanics
Cavity performance in coaxial supersonic jets is investigated experimentally in a supersonic flow facility. The coaxial jets issued from the supersonic nozzle enter into a supersonic combustor in which the cavities are incorporated. The primary jet is maintained at a Mach of 1.32, while secondary jet is designed for Mach of 1.00, 1.11 and 1.45. The open type cavities are axisymmetric. The primary flow is maintained at a temperature of 1050K and the secondary flow is at atmospheric temperature. Static and stagnation pressures are measured by using a conventional pitot probe to analyze the quantitative mixing performance and total pressure loss. Uniform momentum flux distribution is observed in cavity configurations compared with nocavity. A more uniform mixing, as well as minimum stagnation pressure loss, is observed for cavity configuration - 4, L/D = 1.53, than other cavity configurations