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http://dx.doi.org/10.6108/KSPE.2017.21.3.049

Design Study of Engine Inlet Duct for Measurement Improvement of the Flow Properties on AIP  

Im, Ju Hyun (The 4th R&D Institute - 5th Directorate, Agency for Defense Development)
Kim, Sung Don (The 4th R&D Institute - 5th Directorate, Agency for Defense Development)
Kim, Yong Ryeon (The 4th R&D Institute - 5th Directorate, Agency for Defense Development)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.21, no.3, 2017 , pp. 49-55 More about this Journal
Abstract
In this study, gas turbine engine inlet duct was designed to satisfy uniform flow at aerodynamic interface plane (AIP). Haack-series was selected as nose cone profile and duct outer radius($r_o$) was designed to satisfy to match with area change rate between the nose cone and outer duct wall by the 1-D sizing. The design object of the inlet duct wall profile which has the gradual area change rate was uniform Mach number in the core flow region and minimum boundary later thickness at the both inner nose wall and outer duct wall. The flow characteristics inside the inlet duct was evaluated using CFD. The static pressure distribution at the AIP showed uniform pattern within 0.16%. Based on Mach number profile, the boundary layer thickness was 2% of channel height. Kiel temperature rake location was decided less than 100 mm in front of nose cone where the Mach number is less than 0.1 in order to maximize the temperature probe recovery rate.
Keywords
Engine Inlet duct; Nose Cone; Haack Series; 1D Design; CFD;
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Times Cited By KSCI : 1  (Citation Analysis)
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