Study of Flow Field inside a Rectangular Air Intake with Pointed Cowl for Different Back Pressures at Mach 2.2 - World Journal of Engineering and Technology

WJET > Vol.6 No.3, August 2018

World Journal of Engineering and Technology

Volume 6, Issue 3 (August 2018)

ISSN Print: 2331-4222 ISSN Online: 2331-4249

Google-based Impact Factor: 0.80 Citations

Study of Flow Field inside a Rectangular Air Intake with Pointed Cowl for Different Back Pressures at Mach 2.2 ()

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DOI: 10.4236/wjet.2018.63035 952 Downloads 1,947 Views Citations

Author(s)

Shravan Koundinya Vutukuru¹, Sudip Das², Aleksandrs Urbahs¹

Affiliation(s)

¹Institute of Aeronautics, Faculty of Mechanical Engineering, Transport and Aeronautics, Riga Technical University, Riga, Latvia.
²Birla Institute of Technology, Department of Space Engineering and Rocketry, Mesra, Ranchi, India.

ABSTRACT

Computations and Experiments were performed to get an understanding of the flow field around a rectangular supersonic air intake with pointed cowl [90°] at different back pressures for Mach 2.2. The effect of Cowl shape on the ramp surface pressure distribution is discussed and compared with existing V-Notch [90°] intake model at free exit condition. It was found that using pointed cowl [90°] intake model, a better pressure recovery was achieved compared to the V-Notch [90°] intake model at Mach 2.2. Both Pointed and V-Notch intake models showed good starting characteristics. For change in back pressure, the occurence of normal shock, flow separation zone and flow reversal were observed. All experiments are performed only for the Pointed cowl [90°] intake model. All the 3-D computations were performed by using software available at B.I.T, Mesra, Ranchi.

KEYWORDS

Back Pressures, Cowl, Intake, Mach, Pointed [90°] Cowl, Clean Cowl, Schlieren, V-Notch [90°] Cowl

Share and Cite:

Vutukuru, S. , Das, S. and Urbahs, A. (2018) Study of Flow Field inside a Rectangular Air Intake with Pointed Cowl for Different Back Pressures at Mach 2.2. World Journal of Engineering and Technology, 6, 575-584. doi: 10.4236/wjet.2018.63035.

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