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Optimal linear growth of MHD flow in a square duct

  • IAPCM
  • University of Chinese Academy of Sciences

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Transient linear growth of perturbations in fully developed liquid metal flow subjected to a vertical magnetic field (magnetohydrodynamic flow) is investigated. The flow is confined in an electrically insulating duct with square cross-section. A high order finite difference method called FD-q method is used to discretize the two-dimensional differential linear stability equations. The proposed FD-q method is found to have significant advantage on solving optimal linear energy amplification for duct flows. The optimal transient amplifications for different Fourier modes or different Hartmann numbers are in excellent agreement with the work of Biau et al and Krasnov et al. And the FD-q method may be further used for detail investigations on laminar-turbulent transition process in magnetohydrodynamic duct flows.

Original languageEnglish
Title of host publicationProceedings of the International Conference on Numerical Analysis and Applied Mathematics 2014, ICNAAM 2014
EditorsTheodore E. Simos, Theodore E. Simos, Theodore E. Simos, Charalambos Tsitouras
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735412873
DOIs
StatePublished - 10 Mar 2015
Externally publishedYes
EventInternational Conference on Numerical Analysis and Applied Mathematics 2014, ICNAAM 2014 - Rhodes, Greece
Duration: 22 Sep 201428 Sep 2014

Publication series

NameAIP Conference Proceedings
Volume1648
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceInternational Conference on Numerical Analysis and Applied Mathematics 2014, ICNAAM 2014
Country/TerritoryGreece
CityRhodes
Period22/09/1428/09/14

Keywords

  • Duct flow
  • Magnetohydrodynamic
  • Transient growth

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