Convoluted intake distortion measurements using stereo particle image velocimetry

Simple item page
dc.contributor.authorGil-Prieto, Daniel
dc.contributor.authorMacManus, David G.
dc.contributor.authorZachos, Pavlos K.
dc.contributor.authorTanguy, Geoffrey
dc.contributor.authorMenzies, Kevin R.
dc.date.accessioned2017-06-05T10:28:59Z
dc.date.available2017-06-05T10:28:59Z
dc.date.issued2017-04-18
dc.description.abstractThe unsteady distorted flowfields generated within convoluted aeroengine intakes can compromise the engine performance and operability. Therefore, there is a need for a better understanding of the complex characteristics of the distorted flow at the exit of S-shaped intakes. This work presents a detailed analysis of the unsteady swirl distortion based on synchronous, high-spatial-resolution measurements using stereoscopic particle image velocimetry. Two S-duct configurations with different centerline offsets are investigated. The high-offset duct shows greater levels of dynamic and steady swirl distortion and a notably greater tendency toward bulk swirl patterns associated with high swirl distortion. More discrete distortion patterns with locally high swirl levels and the potential to impact the engine operability are identified. The most energetic coherent structures of the flowfield are observed using proper orthogonal decomposition. A switching mode is identified that promotes the alternating swirl switching mechanism and is mostly associated with the occurrence of potent bulk swirl events. A vertical mode that characterizes a perturbation of the vertical velocity field promotes most of the twin swirl flow distortion topologies. It is postulated that it is associated with the unsteadiness of the centerline shear layer.en_UK
dc.identifier.citationDaniel Gil-Prieto, David G. MacManus, Pavlos K. Zachos, Geoffrey Tanguy and Kevin R. Menzies. Convoluted intake distortion measurements using stereo particle image velocimetry. AIAA Journal, Vol. 55, No. 6 (2017), pp1878-1892en_UK
dc.identifier.issn0001-1452
dc.identifier.urihttp://dx.doi.org/10.2514/1.J055467
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/11969
dc.language.isoenen_UK
dc.rightsAttribution-NonCommercial 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/
dc.titleConvoluted intake distortion measurements using stereo particle image velocimetryen_UK
dc.typeArticleen_UK

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Convoluted_intake_distortion_measurements-2017.pdf
Size:
7.28 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.79 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Staff publications (SATM)