International Journal of Engineering Research in Mechanical and Civil Engineering (IJERMCE)

Monthly Journal for Mechanical and Civil Engineering

Volume3,March 2018,

Topic : Role of Vane Angle and its Shape on Jet Mixing of a Subsonic Coaxial Jet

Authors:Aishwarya Singh Rathore || Neeraj Sharma, Namita Mahindru, G.Mahendra Perumal, Vinayak Malhotra

Abstract:Noise emission control from the jet engine is one of the biggest emerging concerns for the aviation industry as well as for the defence organization. Every year, the aviation industry is facing the 1-billion-dollar loss because of the tremendous emission of noise from the aircraft engines. In future, for certification process of an aircraft, noise emission level will be set as one of the norms in the inspection. Taking into consideration this global concern, in the present investigation, a computational study was carried out to reduce the jet noise for subsonic aircraft by achieving the enhanced jet mixing rate. Computational analysis was done to study the effect of vane orientation angle and its shape on a coaxial jet. The vanes were positioned in the annular passage of the coaxial jet in the coaxial duct. The analysis was done to study the effect of vane orientation angle (0°, 10° and 30°) and vane shapes namely rectangle and a rectangle with positive fillet on a jet mixing of a subsonic coaxial jet using ANSYS16. For computational analysis, the inlet boundary condition was given as 92.1m/s along with the free slip wall condition. Results indicate that the jet mixing rate was enhanced for the vane with the positive filleted rectangular cross-section of vane angle 30°..

Keywords: Coaxial Duct, Jet Mixing, Positive Filleted Rectangular Cross Section, Vane Angle

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DOI: 01.1617/vol5/iss3/pid63190


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Editor-in-Chief
Meinhard Taher Schobeiri
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Texas A & M University, USA.

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ISSN(Online): 2456-1290

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Journal Code : IJERMCE
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