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- W4379792515 abstract "In this study we conducted an integrated analysis of an aircraft airframe and operating en- gines to directly capture the interaction phenomena caused by the engine exhaust. In modern aircraft, engine exhaust significantly impacts the flow field around the wing and fuselage. The current approach of separately designing the airframe and engine does not precisely represent these aerodynamic effects. However, an accurate method of predicting these effects is essential for future engine development. The airframe was modeled with wings, fuselage, nacelle, and pylon based on the NASA Common Research Model, and the engine was modeled with detailed fan rotors based on NASA Rotor67 and a matching bypass duct profile that was provided by IHI Corporation. Airframe and rotor were both discretized separately using an unstructured tetrahedral mesh to accommodate the complex geometry. We utilized two different methods to couple the stationary and the rotating domain: First, we performed simulations with the overset mesh method at two different mesh resolutions to examine the mesh dependency. Sec- ond, we performed a simulation with the sliding mesh method via two interfaces within the engine nacelle. The simulations with the overset mesh method proved inefficient with respect to CPU time and were too slow to converge. The sliding mesh method enabled a much faster computation with much better convergence behavior . Although this simulation did not yet fully converge either, it already provides much cleaner data for the interference phenomena, which will be the focus of this study." @default.
- W4379792515 created "2023-06-09" @default.
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- W4379792515 date "2023-06-08" @default.
- W4379792515 modified "2023-09-26" @default.
- W4379792515 title "Influence of the Engine Exhaust on the Wing Pressure Distribution, Computed with an Integrated Simulation of Airframe and Running Engine" @default.
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- W4379792515 doi "https://doi.org/10.2514/6.2023-3585" @default.
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