Numerical Investigations of Magnetohydrodynamic Hypersonic Flows

Numerical simulations of magnetohydrodynamic (MHD) hypersonic flow are presented for both laminar and turbulent flow over a cylinder and flow entering a scramjet inlet. ANSYS CFX is used to carry out calculations for steady flow at hypersonic speeds (Mach number > 5). The low magnetic Reynolds number (<<1) calculated based on the velocity and length scales in this problem justifies the quasistatic approximation, which assumes negligible effect of velocity onmagnetic fields. Therefore the governing equations employed in the simulations are the compressible Navier-Stokes and the energy equations with MHD-related sourceterms such as Lorentz force and Joule dissipation. Turbulence effects are accounted for when applicable and multiple turbulence models are compared. The results demonstrate the ability of the magnetic field to affect the flowfield, and variables such as location and magnitude of the applied magnetic field are examined. An examination of future work is provided through the implementation of a semi-discrete central scheme in-house code toward the solution of the Orszag-Tang vortex system.

Name thesis:degree_name

Master of Science

Level thesis:degree_level

masters

Discipline thesis:degree_discipline

Mechanical Engineering

Grantor dc:publisher

University of Akron

Year dc:date

2013

Author dc:creator

• Guarendi, Andrew N.

Contributors dc:contributor

• Chandy, Abhilash

• Aerospace Engineering
• Engineering
• Fluid Dynamics
• Mechanical Engineering
• Hypersonic
• Hypersonic Flow
• Flow over a cylinder
• Magnetohydrodynamic
• MHD
• Lorentz
• Hypersonic MHD
• Numerical Methods
• CFD
• Computational fluid dynamics
• Aerospace

Statement dc:rights

• unrestricted
• This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.

Language dc:language

English

Repository record dc:identifier

http://rave.ohiolink.edu/etdc/view?acc_num=akron1365985409

OAI identifier oai:identifier

oai:etd.ohiolink.edu:akron1365985409