한국전산유체공학회:학술대회논문집
- 2007.10a
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- Pages.77-81
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- 2007
UNSTEADY AERODYNAMIC ANALYSIS FOR HELICOPTER ROTOR IN HOVERING AND FORWARDING FLIGHT USING OVERSET GRID
중첩격자를 이용한 제자리 및 전진 비행하는 헬리콥터 로터의 비정상 공력해석
Abstract
In this paper, helicopter aerodynamics is simulated in hovering and forwarding flighst. The governing equation is the unsteady Euler equation. To consider the blade motion and moving effects, an overset grid technique is applied in this simulation. At the boundary, the Riemann invariants condition is used for inflow and outflow. To validate this method, the result is compared with Caradonna-Tung's experimental data.