[{"OA_place":"publisher","department":[{"_id":"GradSch"},{"_id":"BjHo"}],"date_published":"2025-06-26T00:00:00Z","supervisor":[{"last_name":"Hof","id":"3A374330-F248-11E8-B48F-1D18A9856A87","full_name":"Hof, Björn","orcid":"0000-0003-2057-2754","first_name":"Björn"}],"abstract":[{"text":"Flows of ordinary fluids such as water or air transition from laminar to turbulent\r\nmotion as the velocity increases. This simple dependence of the flow state\r\nsolely on inertia, does not apply to more complex substances such as polymericand biofluids which commonly have elastic as well as viscous properties. Here\r\nvarious different instabilities and turbulent states can arise at low and even\r\nvanishing inertia, while high inertia turbulence counterintuitively is suppressed\r\nand its drag strongly reduced. We here show in experiments of a viscoelastic\r\nmodel fluid that the phenomena observed at low and high inertia have a\r\ncommon origin and that the same dynamical state, elasto-inertial turbulence,\r\npersists across four orders of magnitude in Reynolds number, ranging from\r\nvery low inertia, all the way to high inertia Maximum drag reduction (MDR)\r\nasymptote. We also explore the transitions from Newtonian turbulence to\r\nMDR, and specific cases of flow at high polymer concentrations, exploring the\r\nrelationship between flow at these wide range of control parameters.\r\n","lang":"eng"}],"article_processing_charge":"No","ec_funded":1,"oa":1,"language":[{"iso":"eng"}],"status":"public","acknowledged_ssus":[{"_id":"M-Shop"}],"has_accepted_license":"1","ddc":["530"],"degree_awarded":"PhD","doi_confirm":"1","file":[{"file_id":"19907","checksum":"302a07605a9e64ac247c2036d5f5b1cd","date_created":"2025-06-26T08:40:53Z","relation":"main_file","date_updated":"2025-12-27T23:30:02Z","embargo":"2025-12-27","file_name":"Thesis_v9_PDFA2b.pdf","content_type":"application/pdf","creator":"cchlebak","file_size":6504571,"access_level":"open_access"},{"embargo_to":"open_access","relation":"source_file","date_created":"2025-06-26T08:41:24Z","file_id":"19908","checksum":"5d69d10bdacc24c27f02924379405bd9","date_updated":"2025-12-27T23:30:02Z","creator":"cchlebak","access_level":"closed","file_size":59092991,"file_name":"Thesis Template - ISTA [istaustriathesis].zip","content_type":"application/x-zip-compressed"}],"citation":{"short":"S.S. Suresh, Turbulence in Polymeric Flows: A Characterisation of Elasto-Inertial Turbulence and the Maximum Drag Reduction Asymptote, Institute of Science and Technology Austria, 2025.","apa":"Suresh, S. S. (2025). <i>Turbulence in polymeric flows: A characterisation of elasto-inertial turbulence and the maximum drag reduction asymptote</i>. Institute of Science and Technology Austria. <a href=\"https://doi.org/10.15479/AT-ISTA-19906\">https://doi.org/10.15479/AT-ISTA-19906</a>","mla":"Suresh, Sarath S. <i>Turbulence in Polymeric Flows: A Characterisation of Elasto-Inertial Turbulence and the Maximum Drag Reduction Asymptote</i>. Institute of Science and Technology Austria, 2025, doi:<a href=\"https://doi.org/10.15479/AT-ISTA-19906\">10.15479/AT-ISTA-19906</a>.","chicago":"Suresh, Sarath S. “Turbulence in Polymeric Flows: A Characterisation of Elasto-Inertial Turbulence and the Maximum Drag Reduction Asymptote.” Institute of Science and Technology Austria, 2025. <a href=\"https://doi.org/10.15479/AT-ISTA-19906\">https://doi.org/10.15479/AT-ISTA-19906</a>.","ieee":"S. S. Suresh, “Turbulence in polymeric flows: A characterisation of elasto-inertial turbulence and the maximum drag reduction asymptote,” Institute of Science and Technology Austria, 2025.","ama":"Suresh SS. Turbulence in polymeric flows: A characterisation of elasto-inertial turbulence and the maximum drag reduction asymptote. 2025. doi:<a href=\"https://doi.org/10.15479/AT-ISTA-19906\">10.15479/AT-ISTA-19906</a>","ista":"Suresh SS. 2025. Turbulence in polymeric flows: A characterisation of elasto-inertial turbulence and the maximum drag reduction asymptote. Institute of Science and Technology Austria."},"project":[{"_id":"2564DBCA-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","grant_number":"665385","name":"International IST Doctoral Program"}],"publication_status":"published","license":"https://creativecommons.org/licenses/by-nc-sa/4.0/","date_created":"2025-06-26T08:39:08Z","page":"82","author":[{"id":"3D126CC4-F248-11E8-B48F-1D18A9856A87","last_name":"Suresh","first_name":"Sarath S","full_name":"Suresh, Sarath S"}],"type":"dissertation","alternative_title":["ISTA Thesis"],"file_date_updated":"2025-12-27T23:30:02Z","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode","name":"Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","short":"CC BY-NC-SA (4.0)","image":"/images/cc_by_nc_sa.png"},"user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","month":"06","year":"2025","day":"26","title":"Turbulence in polymeric flows: A characterisation of elasto-inertial turbulence and the maximum drag reduction asymptote","corr_author":"1","related_material":{"record":[{"id":"10299","relation":"part_of_dissertation","status":"public"}]},"_id":"19906","publisher":"Institute of Science and Technology Austria","acknowledgement":"This work was partially funded by the European Union’s Horizon 2020 research\r\nand innovation programme under the Marie Skłodowska-Curie grant agreement\r\nNo. 665385.","doi":"10.15479/AT-ISTA-19906","oa_version":"Published Version","date_updated":"2026-07-29T12:55:31Z","publication_identifier":{"issn":["2663-337X"]},"fulldoi":"https://doi.org/10.15479/AT-ISTA-19906"}]