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http://dx.doi.org/10.5139/JKSAS.2011.39.7.652

Computation of Flowfield and Infrared Signature in Aircraft Exhaust System for IR Reduction Design  

Moon, Hyuk (경상대학교 항공우주시스템공학과)
Yang, Young-Rok (경상대학교 항공기부품기술연구소)
Chun, Soo-Hwan (경상대학교 항공우주시스템공학과)
Choi, Seong-Man (전북대학교 항공우주공학과)
Myong, Rho-Shin (경상대학교 항공우주시스템공학과 및 항공기부품기술연구소)
Cho, Tae-Hwan (경상대학교 항공우주시스템공학과 및 항공기부품기술연구소)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.39, no.7, 2011 , pp. 652-659 More about this Journal
Abstract
A computational system to predict flowfield and infrared signature in aircraft exhaust system is developed. As the first step, a virtual mission profile is considered and an engine is selected through a performance analysis. Then a nozzle that meets the requirement of each mission is designed. The internal flow in the exhaustion nozzle at the maximum thrust is analyzed using a state-of-the-art CFD code. In addition, a system to combine information of the skin temperature distribution of the nozzle and after-body surface with an infrared prediction code is developed. Finally, qualitative results for the infrared signature reduction design are obtained by investigating the infrared signature level under various conditions.
Keywords
Infrared Signature Prediction; Computational Fluid Dynamics; Unmanned Combat Air Vehicle;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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