Infuence of strong spanwise magnetic field on the quasi-two-dimensional MHD flow in a 180-degree sharp bend

Mohd Azan Mohammed Sapardi, Wisam Al Saadi, Alban Potherat, Gregory Sheard

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

Abstract

The quasi-two-dimensional flow of a liquid metal exposed to a strong spanwise magnetic field around a 180-degree sharp bend is investigated using a high-order spectral-element algorithm. This study identifies the effect of strong spanwise magnetic field strength defined by Hartmann number on flow characteristics such as the length of the downstream recirculation bubbles and the threshold Reynolds numbers between steady-state and unsteady flow regimes for the ratio between the width of the bend and the height of the inlet duct, 0.2 ≤ β ≤ 2. The study reveals that the first recirculation bubble length decreases with increasing Hartmann number. The flow was found to be more stable as observed from the increase of critical Reynolds number for transition from steady to unsteady flow as Hartmann number increases for all β. This study gives useful insight into the generation of instability for improved mixing and heat transport in heat exchanger ducting in MHD systems.
Original languageEnglish
Title of host publicationProceedings of 11th International Conference on CFD in the Minerals and Process Industries (2015)
EditorsChris B Solnordal, Petar Liovic, Gary W Delaney, Sharen J Cummins, M Phil Schwarz, Peter J Witt
Place of PublicationMelbourne Vic Australia
PublisherCSIRO Publishing
Pages1 - 6
Number of pages6
ISBN (Print)9781486306206
Publication statusPublished - 2015
EventInternational Conference on CFD in the Minerals and Process Industries 2015 - Melbourne Conference and Exhibition Centre, South Wharf, Melbourne, Australia
Duration: 7 Dec 20159 Dec 2015
Conference number: 11th

Conference

ConferenceInternational Conference on CFD in the Minerals and Process Industries 2015
Abbreviated titleCFD 2015
CountryAustralia
CityMelbourne
Period7/12/159/12/15

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