The developments and the applications of the numerical algorithms in simulating the incompressible magnetohydrodynamics with complex boundaries and free surfaces /
General Material Designation
[Book]
First Statement of Responsibility
Jie Zhang.
.PUBLICATION, DISTRIBUTION, ETC
Place of Publication, Distribution, etc.
Singapore :
Name of Publisher, Distributor, etc.
Springer,
Date of Publication, Distribution, etc.
2019.
PHYSICAL DESCRIPTION
Specific Material Designation and Extent of Item
1 online resource (xv, 145 pages) :
Other Physical Details
illustrations (some color)
SERIES
Series Title
Springer theses,
ISSN of Series
2190-5053
GENERAL NOTES
Text of Note
"Doctoral thesis accepted by the University of Chinese Academy of Sciences, Huairou, China."
INTERNAL BIBLIOGRAPHIES/INDEXES NOTE
Text of Note
Includes bibliographical references.
CONTENTS NOTE
Text of Note
Introduction -- Governing Equations -- Numerical schemes -- The validations of the numerical methodology -- The argon bubble rising in the liquid GaInSn under the influence of a vertical magnetic field -- The argon bubble rising in the liquid GaInSn under the influence of a horizontal magnetic field. .
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SUMMARY OR ABSTRACT
Text of Note
This thesis presents an accurate and advanced numerical methodology to remedy difficulties such as direct numerical simulation of magnetohydrodynamic (MHD) flow in computational fluid dynamics (CFD), grid generation processes in tokamak fusion facilities, and the coupling between the surface tension force and Lorentz force in the metallurgical industry. In addition, on the basis of the numerical platform it establishes, it also investigates selected interesting topics, e.g. single bubble motion under the influence of either vertical or horizontal magnetic fields. Furthermore, it confirms the relation between the bubble's path instability and wake instability, and observes the anisotropic (isotropic) effect of the vertical (horizontal) magnetic field on the vortex structures, which determines the dynamic behavior of the rising bubble. The direct numerical simulation of magnetohydrodynamic (MHD) flows has proven difficult in the field of computational fluid dynamic (CFD) research, because it not only concerns the coupling of the equations governing the electromagnetic field and the fluid motion, but also calls for suitable numerical methods for computing the electromagnetic field. In tokamak fusion facilities, where the MHD effect is significant and the flow domain is complex, the process of grid generation requires considerable time and effort. Moreover, in the metallurgical industry, where multiphase MHD flows are usually encountered, the coupling between the surface tension force and Lorentz force adds to the difficulty of deriving direct numerical simulations.