---
_id: '463'
abstract:
- lang: eng
  text: We investigate transient behaviors induced by magnetic fields on the dynamics
    of the flow of a ferrofluid in the gap between two concentric, independently rotating
    cylinders. Without applying any magnetic fields, we uncover emergence of flow
    states constituted by a combination of a localized spiral state (SPIl) in the
    top and bottom of the annulus and different multi-cell flow states (SPI2v, SPI3v)
    with toroidally closed vortices in the interior of the bulk (SPIl+2v = SPIl +
    SPI2v and SPIl+3v = SPIl + SPI3v). However, when a magnetic field is presented,
    we observe the transient behaviors between multi-cell states passing through two
    critical thresholds in a strength of an axial (transverse) magnetic field. Before
    the first critical threshold of a magnetic field strength, multi-stable states
    with different number of cells could be observed. After the first critical threshold,
    we find the transient behavior between the three- and two-cell flow states. For
    more strength of magnetic field or after the second critical threshold, we discover
    that multi-cell states are disappeared and a localized spiral state remains to
    be stimulated. The studied transient behavior could be understood by the investigation
    of various quantities including a modal kinetic energy, a mode amplitude of the
    radial velocity, wavenumber, angular momentum, and torque. In addition, the emergence
    of new flow states and the transient behavior between their states in ferrofluidic
    flows indicate that richer and potentially controllable dynamics through magnetic
    fields could be possible in ferrofluic flow.
article_number: '113112'
article_processing_charge: No
article_type: original
author:
- first_name: Sebastian
  full_name: Altmeyer, Sebastian
  id: 2EE67FDC-F248-11E8-B48F-1D18A9856A87
  last_name: Altmeyer
  orcid: 0000-0001-5964-0203
- first_name: Younghae
  full_name: Do, Younghae
  last_name: Do
- first_name: Soorok
  full_name: Ryu, Soorok
  last_name: Ryu
citation:
  ama: Altmeyer S, Do Y, Ryu S. Transient behavior between multi-cell flow states
    in ferrofluidic Taylor-Couette flow. <i>Chaos</i>. 2017;27(11). doi:<a href="https://doi.org/10.1063/1.5002771">10.1063/1.5002771</a>
  apa: Altmeyer, S., Do, Y., &#38; Ryu, S. (2017). Transient behavior between multi-cell
    flow states in ferrofluidic Taylor-Couette flow. <i>Chaos</i>. AIP Publishing.
    <a href="https://doi.org/10.1063/1.5002771">https://doi.org/10.1063/1.5002771</a>
  chicago: Altmeyer, Sebastian, Younghae Do, and Soorok Ryu. “Transient Behavior between
    Multi-Cell Flow States in Ferrofluidic Taylor-Couette Flow.” <i>Chaos</i>. AIP
    Publishing, 2017. <a href="https://doi.org/10.1063/1.5002771">https://doi.org/10.1063/1.5002771</a>.
  ieee: S. Altmeyer, Y. Do, and S. Ryu, “Transient behavior between multi-cell flow
    states in ferrofluidic Taylor-Couette flow,” <i>Chaos</i>, vol. 27, no. 11. AIP
    Publishing, 2017.
  ista: Altmeyer S, Do Y, Ryu S. 2017. Transient behavior between multi-cell flow
    states in ferrofluidic Taylor-Couette flow. Chaos. 27(11), 113112.
  mla: Altmeyer, Sebastian, et al. “Transient Behavior between Multi-Cell Flow States
    in Ferrofluidic Taylor-Couette Flow.” <i>Chaos</i>, vol. 27, no. 11, 113112, AIP
    Publishing, 2017, doi:<a href="https://doi.org/10.1063/1.5002771">10.1063/1.5002771</a>.
  short: S. Altmeyer, Y. Do, S. Ryu, Chaos 27 (2017).
date_created: 2018-12-11T11:46:37Z
date_published: 2017-11-01T00:00:00Z
date_updated: 2024-02-28T13:02:12Z
day: '01'
ddc:
- '530'
department:
- _id: BjHo
doi: 10.1063/1.5002771
file:
- access_level: open_access
  checksum: 0731f9d416760c1062db258ca51f8bdc
  content_type: application/pdf
  creator: dernst
  date_created: 2019-10-24T15:14:30Z
  date_updated: 2020-07-14T12:46:32Z
  file_id: '6970'
  file_name: 2017_Chaos_Altmeyer.pdf
  file_size: 7714020
  relation: main_file
file_date_updated: 2020-07-14T12:46:32Z
has_accepted_license: '1'
intvolume: '        27'
issue: '11'
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
publication: Chaos
publication_identifier:
  issn:
  - '10541500'
publication_status: published
publisher: AIP Publishing
publist_id: '7358'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Transient behavior between multi-cell flow states in ferrofluidic Taylor-Couette
  flow
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 27
year: '2017'
...