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dc.contributor.authorSemlitsch, Bernharden
dc.contributor.authorMihaescu, Mihaien
dc.contributor.authorGutmark, Ephraimen
dc.contributor.authorFuchs, Laszloen
dc.date.accessioned2020-01-21T00:30:47Z
dc.date.available2020-01-21T00:30:47Z
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/301070
dc.description.abstractThe flow structure generation by multiple jets impinging a supersonic crossflow in the divergent section of a Convergent-Divergent (C-D) duct is investigated using compressible Large Eddy Simulations (LES). The supersonic flow-field in the C-D duct is mainly characterized by the evolving shock-structure. The effect of increasing the compressible jet to crossflow velocity ratio R to the generation of flow structures and the ability to modify the shock-pattern in the duct was studied. Traversing R, the shock-pattern can be significantly altered. This paper demonstrates that for close located jets in crossflow the vortical structures generated by the jets can interact and give rise to vortical structures in the interspace plane between the jets. The spectra for different probes are shown illustrating the characteristic flow frequencies. For all simulated cases the spectra show peaks for a defined Strouhal-number of 0.5. The jets choke in the crossflow above an R of about 0.65, which results in a faster disruption of the coherent flow structures induced by the jets. The flow field is analyzed using Proper Orthogonal Decomposition (POD).
dc.rightsAll rights reserved
dc.rights.uri
dc.titleFlow Structure Generation by Multiple Jets in Supersonic Cross-Flowen
dc.typeConference Object
dc.identifier.doi10.17863/CAM.48147
dcterms.dateAccepted2013-05-31en
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2013-05-31en
dc.contributor.orcidSemlitsch, Bernhard [0000-0001-7715-863X]
rioxxterms.typeConference Paper/Proceeding/Abstracten
pubs.conference-name4th International Conference on Jets, Wakes and Separated Flows, ICJWSF2013en
pubs.conference-start-date2013-09-17en
cam.orpheus.counter14*
rioxxterms.freetoread.startdate2023-01-20


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