한국전산유체공학회:학술대회논문집
- 한국전산유체공학회 2008년도 춘계학술대회논문집
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- Pages.464-467
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- 2008
스마트무인기 엔진 배기가스가 기체에 미치는 영향에 관한 수치적 연구
Numerical Study for the Effect of Engine Exhaust Gas on the Airframe of Smart UAV
- 발행 : 2008.03.26
초록
An ejector is designed for the purpose of engine bay cooling. The primary flow of the ejector is the exhaust gas of the PW206C turboshaft engine. The mass flow of secondary flow is calculated by using the approximate analytic equation. And the effect of exhaust gas flow on the fuselage surface is investigated by using the Fluent Code. Three types of exhaust duct shape were compared in the viewpoint of surface temperature and aerodynamic drag. As a result, exhaust duct shape P3 shows minimum interference of exhaust gas and fuselage and minimum increment of drag among the three candidate shapes.