Effect of Cavities on Mixing of Coaxial High-Speed Jets
S Jeya Kumar1, K Karthik2, J Sarath Kumar Sebastin3
1S. Jeya Kumar, Department of Aeronautical Engineering, Kalasalingam Academy of Research and Education, (Tamil Nadu), India.
2 K. Karthik, Department of Aeronautical Engineering, Kalasalingam Academy of Research and Education, (Tamil Nadu), India.
3J. Sarath Kumar Sebastin, Department of Aeronautical Engineering, Kalasalingam Academy of Research and Education, (Tamil Nadu), India.
Manuscript received on 23 November 2019 | Revised Manuscript received on 17 December 2019 | Manuscript Published on 30 December 2019 | PP: 1-4 | Volume-9 Issue-1S4 December 2019 | Retrieval Number: A10761291S419/19©BEIESP | DOI: 10.35940/ijeat.A1076.1291S419
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: 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
Keywords: Cavity Flow, Supersonic Flows, Coaxial Jet Mixing, Stagnation Pressure Loss.
Scope of the Article: High Speed Networks