Distortion test capabilities for future fighter aircraft engines

Amundson, Mark; Holm, Raymond

doi:10.2514/6.1989-2956

Cited by 3 publications

(2 citation statements)

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“…The conventional approach of "podded" under-the-wing propulsion system integration is being replaced by approaches where the propulsion system is integrated into the airframe to reduce drag and improve overall air platform performance. 1 The assumptions for these designs are that the propulsion system performance will remain the same or be improved relative to conventional integration approaches. However, these non-conventional approaches produce complex flowfields at the entrance to the propulsion system.…”

Section: Introductionmentioning

confidence: 99%

Computational and Experimental Evaluation of a Complex Inlet Swirl Pattern Generation System

Sanders¹,

Nessler²,

Copenhaver³

et al. 2016

52nd AIAA/SAE/ASEE Joint Propulsion Conference

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An assessment was conducted to determine the suitability of subscale, low-Mach-number, particle image velocimetry (PIV) testing and computational fluid dynamics (CFD) analysis to evaluate swirling flow downstream of a swirl pattern generation system composed of continuous patterns of turning vanes. Successful demonstration of the evaluation methods required acceptable comparison of the PIV and CFD to an independent five-hole probe measurement performed at the design Mach number and full-scale geometry. The focus of the investigation was on direct comparison of flow angles and flow features one diameter downstream of the swirl pattern generator. Both the subscale PIV and the CFD provide adequate representation of the swirling flow produced by the full-scale generator. The subscale PIV and CFD may be used to predict the performance of the full-scale swirl pattern generator and allow for inexpensive testing and analysis to be performed during the design process, thus improving the accuracy of generating a desired swirl pattern.

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Section: Introductionmentioning

confidence: 99%

Computational and Experimental Evaluation of a Complex Inlet Swirl Pattern Generation System

Sanders¹,

Nessler²,

Copenhaver³

et al. 2016

52nd AIAA/SAE/ASEE Joint Propulsion Conference

View full text Add to dashboard Cite

show abstract

“…Pressure and temperature distortion play an important role in aircraft/engine compatibility evaluations and testing for all turbine-engine/aircraft installations and particularly the multirole advanced tactical fighters currently being developed by the U.S. Air Force (Amundson and Holm, 1989). Several methodologies for analyzing the time-dependent, spatial, engine-face total pressure distortion have been developed over the past 25 years.…”

Section: Introductionmentioning

confidence: 99%