Base Control using Micro Jets for Area Ratio of 5.06
Fharukh Ahmed G M1, Sher Afghan Khan2
1Fharukh Ahmed G M, Department of Mechanical Engineering, Bearys Institute of Technology, Mangalore (Karnataka), India.
2Sher Afghan Khan, Department of Mechanical Engineering, Bearys Institute of Technology, Mangalore (Karnataka), India.
Manuscript received on 22 April 2019 | Revised Manuscript received on 01 May 2019 | Manuscript Published on 05 May 2019 | PP: 279-283 | Volume-8 Issue-2S2, May 2019 | Retrieval Number: B10580182S219/19©BEIESP
Open Access | Editorial and Publishing Policies | Cite | Mendeley | Indexing and Abstracting
© 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: Experimental research work is carried in this article to analyze the effect of active control on base pressure variation. Investigations are performed at Mach number of 1.7, 2.3, and 2.7, NPR 1 to 10, and L/D ratio from 10 to 2 for change in base pressure variation. Active control in the form of four micro jets of 1 mm orifice diameter is employed for the investigation. At L/D = 10, the control affected the level of base pressure at higher NPR. At L/D = 6, 4, and 2 the base pressure variation obtained are different, and the control affects the level of base pressure at lower Mach number then at higher Mach number. However, the wall pressure remains unaffected due to the application of microjets in the enlarged duct.
Keywords: Base Flow, Active Control, Base Pressure, Micro Jets, Area Ratio, Base Drag.
Scope of the Article: Quality Control