Inlet/Engine Integration Examples Using Coupled Transient and Steady Engine Performance Models with Kestrel

Denny, A.; Horine, J. T.; Nichols, R.; Morton, Scott A.; Klepper, Jason; Savelle, S. A.

doi:10.2514/6.2014-0753

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…4 Therefore, this paper intended to propose a new control scheme to accomplish the deceleration by fully utilizing the coupled problems between the inlet and engine in deceleration on the premise of safety. 5,6 As is well known, the coupled problems are always caused by the mismatch of the air mass flow and the distortion in aerodynamic interface plane (AIP). The role of the inlet is to provide the engine-appropriate air mass flow.…”

Section: Introductionmentioning

confidence: 99%

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A new solution to the coupled problems of aero-propulsion system deceleration under supersonic state

Sun

Chen

Zhang

2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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Under supersonic state, the aero-propulsion system exhibits different coupled characters in deceleration from that in acceleration. However, the deceleration control has not been fully studied. In order to solve the coupled problems, an integrated component-level model including inlet and turbofan engine was established. Based on the integrated model, the particularity of inlet adjustment during deceleration was analyzed. And the analyzed results showed that the inlet regulation is not necessary to keep the inlet and engine working in well-matched at any time under supersonic state. Due to the coupled relationship between inlet and turbofan engine, a new optimal integrated control scheme is proposed in this paper. The inlet ramp angle is taken as an optimal control variable as the same as main fuel mass flow and nozzle throat area. The simulation results indicate that inlet ramp angle regulation showed a more effective control quality in the rapid drop of aero-propulsion–installed thrust. Furthermore, the deceleration could be completed in a shorter control time.

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Section: Introductionmentioning

confidence: 99%