{"isi":1,"article_type":"original","oa":1,"oa_version":"Preprint","publication_status":"published","intvolume":"       863","title":"Experiments on a jet in a crossflow in the low-velocity-ratio regime","_id":"5943","department":[{"_id":"BjHo"}],"date_created":"2019-02-10T22:59:15Z","volume":863,"page":"386-406","month":"03","date_updated":"2023-08-24T14:43:13Z","year":"2019","type":"journal_article","author":[{"full_name":"Klotz, Lukasz","last_name":"Klotz","first_name":"Lukasz","id":"2C9AF1C2-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-1740-7635"},{"last_name":"Gumowski","full_name":"Gumowski, Konrad","first_name":"Konrad"},{"full_name":"Wesfreid, José Eduardo","last_name":"Wesfreid","first_name":"José Eduardo"}],"scopus_import":"1","doi":"10.1017/jfm.2018.974","citation":{"chicago":"Klotz, Lukasz, Konrad Gumowski, and José Eduardo Wesfreid. “Experiments on a Jet in a Crossflow in the Low-Velocity-Ratio Regime.” <i>Journal of Fluid Mechanics</i>. Cambridge University Press, 2019. <a href=\"https://doi.org/10.1017/jfm.2018.974\">https://doi.org/10.1017/jfm.2018.974</a>.","ieee":"L. Klotz, K. Gumowski, and J. E. Wesfreid, “Experiments on a jet in a crossflow in the low-velocity-ratio regime,” <i>Journal of Fluid Mechanics</i>, vol. 863. Cambridge University Press, pp. 386–406, 2019.","ama":"Klotz L, Gumowski K, Wesfreid JE. Experiments on a jet in a crossflow in the low-velocity-ratio regime. <i>Journal of Fluid Mechanics</i>. 2019;863:386-406. doi:<a href=\"https://doi.org/10.1017/jfm.2018.974\">10.1017/jfm.2018.974</a>","apa":"Klotz, L., Gumowski, K., &#38; Wesfreid, J. E. (2019). Experiments on a jet in a crossflow in the low-velocity-ratio regime. <i>Journal of Fluid Mechanics</i>. Cambridge University Press. <a href=\"https://doi.org/10.1017/jfm.2018.974\">https://doi.org/10.1017/jfm.2018.974</a>","short":"L. Klotz, K. Gumowski, J.E. Wesfreid, Journal of Fluid Mechanics 863 (2019) 386–406.","ista":"Klotz L, Gumowski K, Wesfreid JE. 2019. Experiments on a jet in a crossflow in the low-velocity-ratio regime. Journal of Fluid Mechanics. 863, 386–406.","mla":"Klotz, Lukasz, et al. “Experiments on a Jet in a Crossflow in the Low-Velocity-Ratio Regime.” <i>Journal of Fluid Mechanics</i>, vol. 863, Cambridge University Press, 2019, pp. 386–406, doi:<a href=\"https://doi.org/10.1017/jfm.2018.974\">10.1017/jfm.2018.974</a>."},"abstract":[{"text":"The hairpin instability of a jet in a crossflow (JICF) for a low jet-to-crossflow velocity ratio is investigated experimentally for a velocity ratio range of R ∈ (0.14, 0.75) and crossflow Reynolds numbers ReD ∈ (260, 640). From spectral analysis we characterize the Strouhal number and amplitude of the hairpin instability as a function of R and ReD. We demonstrate that the dynamics of the hairpins is well described by the Landau model, and, hence, that the instability occurs through Hopf bifurcation, similarly to other hydrodynamical oscillators such as wake behind different bluff bodies. Using the Landau model, we determine the precise threshold values of hairpin shedding. We also study the spatial dependence of this hydrodynamical instability, which shows a global behaviour.","lang":"eng"}],"publisher":"Cambridge University Press","language":[{"iso":"eng"}],"article_processing_charge":"No","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","quality_controlled":"1","external_id":{"arxiv":["1902.07931"],"isi":["000526029100016"]},"publication":"Journal of Fluid Mechanics","ec_funded":1,"status":"public","day":"25","date_published":"2019-03-25T00:00:00Z","project":[{"name":"ISTplus - Postdoctoral Fellowships","call_identifier":"H2020","_id":"260C2330-B435-11E9-9278-68D0E5697425","grant_number":"754411"}],"main_file_link":[{"url":"https://arxiv.org/abs/1902.07931","open_access":"1"}]}