Experimental and Numerical Investigation of Active Flow Control of a Serpentine Diffuser

Burrows, Travis J.; Vukašinović, Bojan; Glezer, Ari; Lakebrink, Matthew T.; Mani, Mori

doi:10.2514/1.j059533

Cited by 9 publications

(3 citation statements)

References 35 publications

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“…Second, this study uses data collected from six large U.S. cities, which have well-served public transport systems ( Burrows et al, 2021 ). In addition, the dominant industry and business greatly vary across the six cities, such as financing, IT and high tech, and professional service.…”

Section: Discussionmentioning

confidence: 99%

“…This study, therefore, chooses six large U.S. cities with good transit services and multimodal travel options. To be clear, public transportation is much better served in New York City (NYC), Chicago, Washington, DC, Boston, San Francisco, and Seattle, where transit mode shares were all larger than 10% before the pandemic ( Burrows et al, 2021 ).…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

How mentally healthy we are during the pandemic? Findings from changed travel behavior

Yang

Peng

2023

Journal of Transport & Health

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

How mentally healthy we are during the pandemic? Findings from changed travel behavior

Yang

Peng

2023

Journal of Transport & Health

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“…Most of the research focused on the use of inlet vortex generators as flow control devices to reduce the separations within the intake, the strength of the secondary flows and, consequently the engine fan face distortion. [38][39][40] For example, a study on the reduction of the unsteadiness of the peak swirl with sub-boundary layer vortex generators was conducted by Tanguy et al 41 Research focused also on methods to generate vortices for engine inlet applications and on the vortex development from the source (i.e. ground vortex or wingtip vortex) to the intake.…”

Section: Introductionmentioning

confidence: 99%

S-duct flow distortion with non-uniform inlet conditions

Migliorini

Zachos

MacManus

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part G:

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Convoluted aero-engine intakes are often required to enable closer integration between engine and airframe. Although the majority of previous research focused on the distortion of S-duct intakes with undistorted inlet conditions, there is a need to investigate the impact of more challenging inlet conditions at which the intake duct is expected to operate. The impact of inlet vortices and total pressure profiles on the inherent unsteady flow distortion of an S-duct intake was assessed with stereo particle image velocimetry. Inlet vortices disrupted the characteristic flow switching mode but had a modest impact on the peak levels and unsteady fluctuations. Non-uniform inlet total pressure profiles increased the peak swirl intensity and its unsteadiness. The frequency of swirl angle fluctuations was sensitive to the azimuthal orientation of the non-uniform total pressure distribution. The modelling of peak distortion with the extreme value theory revealed that although for some inlet configurations the measured peak swirl intensity was similar, the growth rate of the peak values beyond the experimental observations was substantially different and it was related with the measured flow unsteadiness. This highlights the need of unsteady swirl distortion measurements and the use of statistical models to assess the time-invariant peak distortion levels. Overall, the work shows it is vital to include the effect of the inlet flow conditions as it substantially alters the characteristics of the complex intake flow distortion.

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