Turbine Powered Simulator Calibration and Testing for Hybrid Wing Body Powered Airframe Integration (Invited)

Shea, Patrick R.; Flamm, Jeffrey D.; Long, Kurtis R.; James, Kevin D.; Tompkins, Daniel M.; Beyar, Michael

doi:10.2514/6.2016-0011

Cited by 8 publications

(1 citation statement)

References 15 publications

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“…To achieve this goal, the Blended Wing Body (BWB), as an innovative concept [3], has received much attention for its high lift-to-drag ratio, low fuel cost, and low noise [4,5]. The BWB is an airplane with the wing blended to the body while still maintaining distinct wing and body structures [6]. It represents a potential revolution in subsonic transport efficiency for large airplanes [7].…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation for Engine/Airframe Interaction Effects of the BWB300 on Aerodynamic Performances

Shu³

et al. 2019

International Journal of Aerospace Engineering

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The engine/airframe interaction effects of the BWB300 on aerodynamic performances were analyzed by using the numerical simulation method. The BWB300 is a 300-seat Blended Wing Body airplane designed by the Airplane Concept Design Institute of Northwestern Polytechnical University. The engine model used for simulation was simplified as a powered nacelle. The results indicated the following: at high speed, although the engine/airframe interaction effects on the aerodynamic forces were not significant, the airframe’s upper surface flow was greatly changed; at low speed, the airframe’s aerodynamic forces (of the airplane with/without the engine) were greatly different, especially at high attack angles, i.e., the effect of the engine suction caused the engine configuration aerodynamic forces of the airframe to be bigger than those without the engine; and the engine’s installation resulting in the different development of flow separation at the airframe’s upper surface caused greater obvious differences between the 2 configurations at high angles and low speed. Moreover, at low-speed high attack angles, the separated flow from the blended area caused serious distortion at the fan inlet of the engine.

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Section: Introductionmentioning

confidence: 99%

Numerical Simulation for Engine/Airframe Interaction Effects of the BWB300 on Aerodynamic Performances

Shu³

et al. 2019

International Journal of Aerospace Engineering

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Simulation on Powered Effects of BWB at Take-off Condition

Liu

Zhang

2020

西北工业大学学报

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The influence of engine powered effects on aerodynamic characteristics of BWB300, which was designed by the Airplane Concept Design Institute of Northwestern Polytechnical University, at take-off condition was analyzed by using the numerical simulation method. Firstly, the method of using the inlet and exhaust boundary conditions to analyze the powered engine was validated. Then, the engine powered effects on BWB300 aerodynamic characteristics at take-off condition were researched with flow through nacelle and with powered nacelle. The results indicated that though the powered effect changing the value of aerodynamic forces, there was no change in the aerodynamic curve trend. It's recommended that the engine power effect should be considered in numerical simulation by using with powered nacelle to gain more accurate values of aerodynamic forces. Nevertheless, with flow nacelle also could be used to gain some regular results.

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Blended Wing Body Thrust Reverser Cascade Feasibility Evaluation Through CFD

Chen

et al. 2019

IEEE Access

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Airplane thrust reverser could significantly reduce the landing distance of a conventional civil turbofan. Control of the thrust reverser can be performed by a hydraulic and/or electric system. This study investigates whether this system can be used for blended wing body (BWB) civil airplanes as their engines are located over the wing body. Computational fluid dynamics (CFD) is used to analyze the feasibility of a thrust reverser cascade applied to BWB airplanes. This is selected because of its rapidity and low cost when compared to traditional wind tunnel tests. Analyses are performed on a 300-seating BWB (BWB300) landing configuration. The results show that the thrust reverser cascade can be applied to BWB300. Furthermore, the results also reveal that the probability of foreign object damage problems occurring during the BWB300 landing process when the thrust reverser cascade is working is low. Increasing the reverse mass flow component along the landing reverse direction can increase the thrust reverser efficiency. However, this would also increase the thrust reverser closing velocity. Therefore, when the thrust reverser design is performanced for BWB, a tradeoff between the efficiency and closing veloctiy should be considered.INDEX TERMS Blended wing body, cascade thrust reverser, CFD, landing configuration.

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Turbine Powered Simulator Calibration and Testing for Hybrid Wing Body Powered Airframe Integration (Invited)

Cited by 8 publications

References 15 publications

Numerical Simulation for Engine/Airframe Interaction Effects of the BWB300 on Aerodynamic Performances

Numerical Simulation for Engine/Airframe Interaction Effects of the BWB300 on Aerodynamic Performances

Simulation on Powered Effects of BWB at Take-off Condition

Blended Wing Body Thrust Reverser Cascade Feasibility Evaluation Through CFD

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