Effect of Micro Jet Control on the Flow Filed of the Duct at Mach 1.5
S A Khan1, Abdul Aabid2, Imran Mokashi3, Zaheer Ahmed4
1S A Khan, Department of Mechanical Engineering, Faculty of Engineering, IIUM Kuala Lumpur, Malaysia.
2Abdul Aabid, Department of Mechanical Engineering, Faculty of Engineering, IIUM Kuala Lumpur, Malaysia.
3Imran Mokashi, Department of Mechanical Engineering, Faculty of Engineering, IIUM. Kuala Lumpur, Malaysia.
4Zaheer Ahmed, Department of Mechanical Engineering, Faculty of Engineering, IIUM, Kuala Lumpur, Malaysia.
Manuscript received on 23 August 2019 | Revised Manuscript received on 11 September 2019 | Manuscript Published on 17 September 2019 | PP: 1758-1762 | Volume-8 Issue-2S8 August 2019 | Retrieval Number: B11480882S819/2019©BEIESP | DOI: 10.35940/ijrte.B1148.0882S819
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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: This article reports the outcome of the wind-tunnel investigation on the role of micro jets as an active control on the wall pressure distribution. Four tiny jets of 1 mm diameter located at 90-degree intervals along a pcd of 1.3 are employed for the control. The Mach number considered for suddenly expanded flow through the nozzle is 1.5, and the microjets are expanded suddenly into a duct at the base with an area ratio of 3.24 times the CD nozzle exit area. The L/D ratio of the duct was reduced from 10 to 1 in steps of 1. The nozzle pressure ratio (NPR) was operated at 3 to 11 with and without control. The wall pressure distribution is observed in the suddenly expanded axi-symmetric duct. From the results, it has been found that the wall pressure distribution does not adversely influence the micro jet controller.
Keywords: Wall Pressure, L/D Ratio, NPR, Mach Number.
Scope of the Article: Quality Control