Evaluation and correction of the adverse effects of (i) inlet turbulence and (ii) rain ingestion on high bypass engines

Russell, Robert L.; Victor, I.

doi:10.2514/6.1984-2486

Cited by 3 publications

(1 citation statement)

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“…There are reasons to believe that the sensor may become immersed in water during water ingestion and give rise to undesirable effects on engine performance. 9 In particular, the control system in the generic engine is assumed to change the stator vane setting and thus the flow area in response to changes in T 25 . The change in control input causes an increase in the stator vane opening and the airflow rate into the engine, giving rise to a mismatch between the booster and the core and a shock-stall condition in the core compressor.…”

Section: Control Input Errormentioning

confidence: 99%

Transient engine performance with water ingestion

Haykin

Murthy

1988

Journal of Propulsion and Power

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The immediate effects of water ingestion on the transient performance of a generic, high-bypass-ratio jet engine are determined through engine simulation. The air compression subsystem is analyzed with respect to four aerothermodynamic and mechanical processes associated with two-phase fluid flow, and the engine simulation is carried out under three limiting cases of interest in practice, one pertaining to draining water at the end of compression and the other two to partial evaporation at two different locations in the burner. General observations are made on engine operability as a function of engine and control design under various engine and (control input) sensor operating conditions, with various mass fractions of water in the air/water mixture entering the engine during various pilotinitiated power demand changes.

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Section: Control Input Errormentioning

confidence: 99%