[{"pubrep_id":"472","publisher":"Nature Publishing Group","article_processing_charge":"No","doi":"10.1038/srep18589","ddc":["530","540"],"oa_version":"Published Version","abstract":[{"text":"We investigate the dynamics of ferrofluidic wavy vortex flows in the counter-rotating Taylor-Couette system, with a focus on wavy flows with a mixture of the dominant azimuthal modes. Without external magnetic field flows are stable and pro-grade with respect to the rotation of the inner cylinder. More complex behaviors can arise when an axial or a transverse magnetic field is applied. Depending on the direction and strength of the field, multi-stable wavy states and bifurcations can occur. We uncover the phenomenon of flow pattern reversal as the strength of the magnetic field is increased through a critical value. In between the regimes of pro-grade and retrograde flow rotations, standing waves with zero angular velocities can emerge. A striking finding is that, under a transverse magnetic field, a second reversal in the flow pattern direction can occur, where the flow pattern evolves into pro-grade rotation again from a retrograde state. Flow reversal is relevant to intriguing phenomena in nature such as geomagnetic reversal. Our results suggest that, in ferrofluids, flow pattern reversal can be induced by varying a magnetic field in a controlled manner, which can be realized in laboratory experiments with potential applications in the development of modern fluid devices.","lang":"eng"}],"file":[{"file_id":"5036","creator":"system","date_updated":"2020-07-14T12:45:03Z","file_size":2771236,"access_level":"open_access","relation":"main_file","file_name":"IST-2016-472-v1+1_srep18589.pdf","date_created":"2018-12-12T10:13:49Z","content_type":"application/pdf","checksum":"927e151674347661ce36eae2818dafdc"}],"year":"2015","date_published":"2015-12-21T00:00:00Z","intvolume":"         5","citation":{"ista":"Altmeyer S, Do Y, Lai Y. 2015. Magnetic field induced flow pattern reversal in a ferrofluidic Taylor-Couette system. Scientific Reports. 5, 18589.","short":"S. Altmeyer, Y. Do, Y. Lai, Scientific Reports 5 (2015).","chicago":"Altmeyer, Sebastian, Younghae Do, and Ying Lai. “Magnetic Field Induced Flow Pattern Reversal in a Ferrofluidic Taylor-Couette System.” <i>Scientific Reports</i>. Nature Publishing Group, 2015. <a href=\"https://doi.org/10.1038/srep18589\">https://doi.org/10.1038/srep18589</a>.","ama":"Altmeyer S, Do Y, Lai Y. Magnetic field induced flow pattern reversal in a ferrofluidic Taylor-Couette system. <i>Scientific Reports</i>. 2015;5. doi:<a href=\"https://doi.org/10.1038/srep18589\">10.1038/srep18589</a>","mla":"Altmeyer, Sebastian, et al. “Magnetic Field Induced Flow Pattern Reversal in a Ferrofluidic Taylor-Couette System.” <i>Scientific Reports</i>, vol. 5, 18589, Nature Publishing Group, 2015, doi:<a href=\"https://doi.org/10.1038/srep18589\">10.1038/srep18589</a>.","ieee":"S. Altmeyer, Y. Do, and Y. Lai, “Magnetic field induced flow pattern reversal in a ferrofluidic Taylor-Couette system,” <i>Scientific Reports</i>, vol. 5. Nature Publishing Group, 2015.","apa":"Altmeyer, S., Do, Y., &#38; Lai, Y. (2015). Magnetic field induced flow pattern reversal in a ferrofluidic Taylor-Couette system. <i>Scientific Reports</i>. Nature Publishing Group. <a href=\"https://doi.org/10.1038/srep18589\">https://doi.org/10.1038/srep18589</a>"},"author":[{"first_name":"Sebastian","orcid":"0000-0001-5964-0203","id":"2EE67FDC-F248-11E8-B48F-1D18A9856A87","full_name":"Altmeyer, Sebastian","last_name":"Altmeyer"},{"first_name":"Younghae","full_name":"Do, Younghae","last_name":"Do"},{"full_name":"Lai, Ying","last_name":"Lai","first_name":"Ying"}],"has_accepted_license":"1","status":"public","language":[{"iso":"eng"}],"_id":"1589","title":"Magnetic field induced flow pattern reversal in a ferrofluidic Taylor-Couette system","file_date_updated":"2020-07-14T12:45:03Z","publication":"Scientific Reports","publist_id":"5582","month":"12","scopus_import":"1","quality_controlled":"1","article_number":"18589","external_id":{"isi":["000367075500002"]},"oa":1,"volume":5,"publication_status":"published","article_type":"original","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","department":[{"_id":"BjHo"}],"date_created":"2018-12-11T11:52:53Z","day":"21","date_updated":"2025-09-23T09:32:24Z","tmp":{"short":"CC BY (4.0)","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"},"type":"journal_article","isi":1}]