| Summary: | 碩士 === 國立成功大學 === 航空太空工程學系碩博士班 === 91 === A numerical method is developed to simulate the change of the flow field and magnetic field when clear air passes through a working platform. The numerical method is used a third-order upwind finite-volume scheme and second-order central finite difference scheme to solve the two-dimensional Magnetohydynamic Equations. The artificial compressibility method is applied in the continuity equation. It uses a high order finite-volume scheme for the convective terms and a second-order finite-volume scheme for the viscous terms. In the magnetic field, because of divergence free condition of magnetic field, the second-order central finite difference scheme is applied.
When clear air passes through a working platform will generate non-uniform circulation zones. We found the magnetic parameter increasing can suppress vortex and to reduce the fluid force acting on a bluff body.
Keyword：Finite-Volume method, Artificial Compressibility,
Magnetohydrodynamics（MHD）,Divergence Free Condition
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