{"date_updated":"2025-09-29T06:36:25Z","corr_author":"1","abstract":[{"lang":"eng","text":"The recent classification of the onset of turbulence as a directed percolation (DP) phase transition has been applied to all major shear flows including pipe, channel, Couette and boundary layer flows. A cornerstone of the DP analogy is the memoryless (Poisson) property of turbulent sites. We here show that, for the classic case of channel flow, neither the decay nor the proliferation of turbulent stripes is memoryless. As demonstrated by a standard analysis of the respective survival curves, isolated channel stripes, in the immediate vicinity of the critical point, age. Consequently, the one to one mapping between turbulent stripes and active DP-sites is not fulfilled in this low Reynolds number regime. In addition, the interpretation of turbulence as a chaotic saddle with supertransient properties, the basis of recent theoretical progress, does not apply to individual localized stripes. The discrepancy between channel flow and the transition models established for pipe and Couette flow, illustrates that seemingly minor geometrical differences between flows can give rise to instabilities and growth mechanisms that fundamentally alter the nature of the transition to turbulence."}],"author":[{"first_name":"Mukund","last_name":"Vasudevan","id":"3C5A959A-F248-11E8-B48F-1D18A9856A87","full_name":"Vasudevan, Mukund"},{"full_name":"Paranjape, Chaitanya S","id":"3D85B7C4-F248-11E8-B48F-1D18A9856A87","last_name":"Paranjape","first_name":"Chaitanya S"},{"last_name":"Sitte","id":"0ba0f1f2-9cfe-11f0-bee6-f95318d225b0","full_name":"Sitte, Michael Philip","first_name":"Michael Philip"},{"full_name":"Yalniz, Gökhan","orcid":"0000-0002-8490-9312","last_name":"Yalniz","id":"66E74FA2-D8BF-11E9-8249-8DE2E5697425","first_name":"Gökhan"},{"first_name":"Björn","id":"3A374330-F248-11E8-B48F-1D18A9856A87","last_name":"Hof","full_name":"Hof, Björn","orcid":"0000-0003-2057-2754"}],"title":"Aging and memory of transitional turbulence","PlanS_conform":"1","oa":1,"quality_controlled":"1","oa_version":"Published Version","status":"public","scopus_import":"1","language":[{"iso":"eng"}],"DOAJ_listed":"1","citation":{"mla":"Vasudevan, Mukund, et al. “Aging and Memory of Transitional Turbulence.” <i>Nature Communications</i>, vol. 16, 8447, Springer Nature, 2025, doi:<a href=\"https://doi.org/10.1038/s41467-025-63044-7\">10.1038/s41467-025-63044-7</a>.","apa":"Vasudevan, M., Paranjape, C. S., Sitte, M. P., Yalniz, G., &#38; Hof, B. (2025). Aging and memory of transitional turbulence. <i>Nature Communications</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41467-025-63044-7\">https://doi.org/10.1038/s41467-025-63044-7</a>","chicago":"Vasudevan, Mukund, Chaitanya S Paranjape, Michael Philip Sitte, Gökhan Yalniz, and Björn Hof. “Aging and Memory of Transitional Turbulence.” <i>Nature Communications</i>. Springer Nature, 2025. <a href=\"https://doi.org/10.1038/s41467-025-63044-7\">https://doi.org/10.1038/s41467-025-63044-7</a>.","ista":"Vasudevan M, Paranjape CS, Sitte MP, Yalniz G, Hof B. 2025. Aging and memory of transitional turbulence. Nature Communications. 16, 8447.","ieee":"M. Vasudevan, C. S. Paranjape, M. P. Sitte, G. Yalniz, and B. Hof, “Aging and memory of transitional turbulence,” <i>Nature Communications</i>, vol. 16. Springer Nature, 2025.","short":"M. Vasudevan, C.S. Paranjape, M.P. Sitte, G. Yalniz, B. Hof, Nature Communications 16 (2025).","ama":"Vasudevan M, Paranjape CS, Sitte MP, Yalniz G, Hof B. Aging and memory of transitional turbulence. <i>Nature Communications</i>. 2025;16. doi:<a href=\"https://doi.org/10.1038/s41467-025-63044-7\">10.1038/s41467-025-63044-7</a>"},"ddc":["532"],"month":"09","department":[{"_id":"BjHo"}],"OA_type":"gold","year":"2025","has_accepted_license":"1","publication":"Nature Communications","license":"https://creativecommons.org/licenses/by/4.0/","article_number":"8447","file":[{"access_level":"open_access","creator":"gyalniz","checksum":"945926ead9cde464435d456427e2869e","file_id":"20403","date_created":"2025-09-27T13:32:03Z","relation":"main_file","date_updated":"2025-09-27T13:32:03Z","file_size":2226082,"content_type":"application/pdf","file_name":"s41467-025-63044-7.pdf"}],"arxiv":1,"project":[{"_id":"238598C6-32DE-11EA-91FC-C7463DDC885E","name":"Revisiting the Turbulence Problem Using Statistical Mechanics","grant_number":"662960"}],"publication_status":"published","publication_identifier":{"eissn":["2041-1723"]},"file_date_updated":"2025-09-27T13:32:03Z","volume":16,"intvolume":"        16","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","tmp":{"image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)"},"acknowledgement":"This work was supported by a grant from the Simons Foundation (662960, BH). We thank Yohann Duguet for helpful discussions, Baofang Song for the initial adaptation of openpipeflow57 to the channel geometry, and Ashley P. Willis for openpipeflow57.","publisher":"Springer Nature","day":"26","date_created":"2025-09-27T13:27:31Z","type":"journal_article","article_type":"original","date_published":"2025-09-26T00:00:00Z","_id":"20402","external_id":{"arxiv":["2112.06537"]},"OA_place":"publisher","doi":"10.1038/s41467-025-63044-7","article_processing_charge":"Yes"}