{"title":"Relaminarization of elastic turbulence","quality_controlled":"1","status":"public","publisher":"American Physical Society","scopus_import":"1","oa_version":"Preprint","oa":1,"date_created":"2023-01-16T10:02:40Z","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","department":[{"_id":"BjHo"}],"abstract":[{"text":"We report frictional drag reduction and a complete flow relaminarization of elastic turbulence (ET) at vanishing inertia in a viscoelastic channel flow past an obstacle. We show that the intensity of the observed elastic waves and wall-normal vorticity correlate well with the measured drag above the onset of ET. Moreover, we find that the elastic wave frequency grows with the Weissenberg number, and at sufficiently high frequency it causes a decay of the elastic waves, resulting in ET attenuation and drag reduction. Thus, this allows us to substantiate a physical mechanism, involving the interaction of elastic waves with wall-normal vorticity fluctuations, leading to the drag reduction and relaminarization phenomena at low Reynolds number.","lang":"eng"}],"main_file_link":[{"open_access":"1","url":" https://doi.org/10.48550/arXiv.2205.12871"}],"date_published":"2022-08-03T00:00:00Z","publication_status":"published","issue":"8","month":"08","article_processing_charge":"No","date_updated":"2023-08-04T10:26:40Z","type":"journal_article","day":"03","keyword":["Fluid Flow and Transfer Processes","Modeling and Simulation","Computational Mechanics"],"isi":1,"acknowledgement":"We thank G. Falkovich for discussion and Guy Han for technical support. We are grateful to N. Jha for his help in µPIV measurements. This work is partially supported by the grants from\r\nIsrael Science Foundation (ISF; grant #882/15 and grant #784/19) and Binational USA-Israel Foundation (BSF;grant #2016145). ","year":"2022","intvolume":"         7","volume":7,"_id":"12279","article_number":"L081301","language":[{"iso":"eng"}],"article_type":"original","citation":{"ieee":"M. V. Kumar, A. Varshney, D. Li, and V. Steinberg, “Relaminarization of elastic turbulence,” <i>Physical Review Fluids</i>, vol. 7, no. 8. American Physical Society, 2022.","mla":"Kumar, M. Vijay, et al. “Relaminarization of Elastic Turbulence.” <i>Physical Review Fluids</i>, vol. 7, no. 8, L081301, American Physical Society, 2022, doi:<a href=\"https://doi.org/10.1103/physrevfluids.7.l081301\">10.1103/physrevfluids.7.l081301</a>.","short":"M.V. Kumar, A. Varshney, D. Li, V. Steinberg, Physical Review Fluids 7 (2022).","ama":"Kumar MV, Varshney A, Li D, Steinberg V. Relaminarization of elastic turbulence. <i>Physical Review Fluids</i>. 2022;7(8). doi:<a href=\"https://doi.org/10.1103/physrevfluids.7.l081301\">10.1103/physrevfluids.7.l081301</a>","chicago":"Kumar, M. Vijay, Atul Varshney, Dongyang Li, and Victor Steinberg. “Relaminarization of Elastic Turbulence.” <i>Physical Review Fluids</i>. American Physical Society, 2022. <a href=\"https://doi.org/10.1103/physrevfluids.7.l081301\">https://doi.org/10.1103/physrevfluids.7.l081301</a>.","apa":"Kumar, M. V., Varshney, A., Li, D., &#38; Steinberg, V. (2022). Relaminarization of elastic turbulence. <i>Physical Review Fluids</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevfluids.7.l081301\">https://doi.org/10.1103/physrevfluids.7.l081301</a>","ista":"Kumar MV, Varshney A, Li D, Steinberg V. 2022. Relaminarization of elastic turbulence. Physical Review Fluids. 7(8), L081301."},"external_id":{"isi":["000836397000001"],"arxiv":["2205.12871"]},"publication_identifier":{"issn":["2469-990X"]},"publication":"Physical Review Fluids","author":[{"full_name":"Kumar, M. Vijay","first_name":"M. Vijay","last_name":"Kumar"},{"full_name":"Varshney, Atul","id":"2A2006B2-F248-11E8-B48F-1D18A9856A87","first_name":"Atul","last_name":"Varshney","orcid":"0000-0002-3072-5999"},{"last_name":"Li","first_name":"Dongyang","full_name":"Li, Dongyang"},{"first_name":"Victor","last_name":"Steinberg","full_name":"Steinberg, Victor"}],"doi":"10.1103/physrevfluids.7.l081301"}