Abstract
When the magnetic Reynolds number , the induced magnetic field caused by the applied electric field and the applied magnetic field can be neglected for magnetohydrodynamic (MHD) control of plasma flows, which is the well-known low-magnetic-Reynolds-number assumption and widely used in the hypersonic MHD numerical simulation. The present study shows whether the induced magnetic field can be neglected depending on not only the magnetic Reynolds number but also the load factor , where is the characteristic velocity. For the MHD accelerator problem, e.g., theoretical and numerical results indicate that the induced magnetic field is proportional to the product of and , and the relative error caused by the induced magnetic field can reach above 25% for the temperature along the channel centerline. Based on the quantitative simulations at different and , an improved criterion is proposed in this study to estimate the validity of the low-magnetic-Reynolds-number assumption.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
