Analysis of Mahnetohydrodynamics Problems Using OpenFOAM

Date

2023-12-21

Author

Gündüz, Nergis

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The thesis aims to simulate 3-D Orszag-Tang vortex and Shock-Cloud interaction test problem via an open source code OpenFOAM. The incompressible 3-D Orszag-Tang vortex and 2-D compressible shock-cloud interaction problems have been used as benchmark problems and standard test cases for codes. Also, there are other common test problems like rotor test-rig, shock tube, and 3-D blast problem. However, occurrance of MHD shocks besides vortex observation is possible. The simulation belongs to Magnetohydrodynamics (MHD) area. In the problem plasmas and magnetic field lines run together. Especially movement of magnetic, electrically conducting fluids directly related with the direction of magnetic area. Both compressible, incompressible or pressure based, density-based versions exist, possible to observe in different Mach numbers MHD equations have become extensive tools for space plasmas. Combination of Maxwell and Navier-Stokes equations are implemented at solution of the problems. Pressure-Implicit with Splitting of Operators (PISO) algorithm is used in solvers by OpenFOAM which include the conservation equations for mass, momentum, energy, and magnetic induction respectively.

Subject Keywords

MHD, OpenFOAM, CFD ,Orszag-Tang

URI

https://hdl.handle.net/11511/108211

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Graduate School of Natural and Applied Sciences, Thesis