Numerical Study of PSU-RBCC Ejector Mode Operation

Han, S. M.; Tomes, Jeremy; Lane, Joe

doi:10.2514/6.2003-5230

Cited by 5 publications

(2 citation statements)

References 6 publications

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“…This is because in the solution procedure the primary flow source terms are equally divided between all of the streamwise control volumes. Thus even though good agreement with experimental results was obtained [38], the model cannot actually compute a mixing length.…”

Section: Chapter 1 Introductionmentioning

confidence: 75%

“…To reduce computing time while still retaining the essential physics of the flow field, a number of quasi-one-dimensional differential models have been proposed for ejectors. An interesting approach was taken by Han et al [38] who used a differential control volume for the secondary stream, while modeling the effects of the primary stream as source terms. The formulation is quite elegant but can only simulate a fully mixed ejector.…”

Section: Chapter 1 Introductionmentioning

confidence: 99%

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Theoretical investigation of variable area ejectors

Koupriyanov¹

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Section: Chapter 1 Introductionmentioning

confidence: 75%

Section: Chapter 1 Introductionmentioning

confidence: 99%

Theoretical investigation of variable area ejectors

Koupriyanov¹

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Ejector mode performance improvement of rocket-based combined cycle engine designed for dual-ramjet mode

Yan

Liu

et al. 2022

Aerospace Science and Technology

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Research on quasi-one-dimensional modeling and performance analysis of RBCC propulsion system

Zhang

Cheng

Tang

et al. 2021

International Journal of Turbo &Amp; Jet-Engines

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Quasi-one-dimensional model is the most effective way to realize the rapid iterative design of the overall scheme and control system of RBCC aircraft and has become a research hotspot. In the current research, the quasi-one-dimensional model of RBCC propulsion system is simplified. The model does not include physical characteristics such as wall heat transfer, boundary layer change, specific heat ratio change and transonic flow singularity, which makes the accuracy of the model low and cannot adapt to flight control in large airspace. A RBCC model with high accuracy and adaptability to wide-speed fly is established in this paper. Firstly, based on the laws of kinetic energy conservation and energy conservation, the thrust model of ejection mode is established. Secondly, the quasi-one-dimensional flow control equation is deduced, and the physical mechanism models of core flow area, transonic flow, pre-combustion shock train, heat release law and mixing efficiency are established. On this basis, the quasi-one-dimensional flow model of RBCC dual-mode ramjet is established. Thirdly, based on the law of momentum conservation, the mathematical model of rocket mode is deduced, and the thrust model of rocket mode is established. Finally, the accuracy of the quasi-one-dimensional model is verified by CFD numerical simulation and direct-connect experiment. Taking a typical RBCC launch vehicle as an example, the wide-speed performance of the RBCC propulsion system is calculated and analyzed.

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Numerical Study of PSU-RBCC Ejector Mode Operation

Cited by 5 publications

References 6 publications

Theoretical investigation of variable area ejectors

Theoretical investigation of variable area ejectors

Ejector mode performance improvement of rocket-based combined cycle engine designed for dual-ramjet mode

Research on quasi-one-dimensional modeling and performance analysis of RBCC propulsion system

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