• Shubham Tuppad
• Dr. Viswanath Bellie

A numerical study was undertaken to study the effect of plates kept at X/D =1, 3 and 5 for the jet exit and the interaction between the flow and the plate and the flow has been studied at a free stream Mach number of 0.6 and 1.4. A baseline configuration along with three plate configurations was studied. A literature survey was conducted to understand the flow field and the need to reduce the jet temperature downstream of the jet. Based on the literature, an engine configuration was chosen as a baseline case. A validation study was undertaken and it was found that the temperature values predicted by software have error and similar studies are reported in the literature. The plates are seen to affect the distribution of pressure, velocity, Mach number and total temperature. The total temperature downstream of the plates are reduces which is effective in reducing the jet signature Plate at X/D=1 is suggested as optimum since the performance is better than other locations. The effect of plate is similar in both Mach numbers. The plate kept at X/D=5 is seen to offer adverse effect at free stream Mach number of 1.4 and it is suggested to avoid this case for Mach number 1.4.

Jet Signature, Total Temperature, Mach number, Pressure and Velocity, Jet exit, Plume

"Stealth performance by Jet Signature reduction", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 7, page no.461-466, July-2018, Available :http://www.jetir.org/papers/JETIR1807530.pdf

"Stealth performance by Jet Signature reduction", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 7, page no. pp461-466, July-2018, Available at : http://www.jetir.org/papers/JETIR1807530.pdf