Abstract
Experimental and computational studies are made on a rectangular mixed compression air-intake designed for Mach 2.2 to study the effect of cowl bending. Flow field details inside the intake have been captured using schlieren flow visualisation and measurement of static and total pressures. Three dimensional simulations have been made with RANS solver adopting k-ω turbulence model using FLUENT. Studies show that the configuration indicate unstart without any cowl bending whereas startup is observed with adoption of small cowl bend. In addition, improvement in quality of flow inside the intake has been observed. In general, agreements between experimental and computational results are good. Studies have been also made at different back pressures. Provision of a small cowl bending could lead to better performance of intake.
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