A Numerical Scheme for Predicting Transient Shock, Boundary Layer, and Magnetohydrodynamic Phenomenia
Abstract
A stable procedure of first order accuracy for solving the coupled axisymmetric transient gasdynamic and electromagentic equations is presented. A numerical integration technique developed by Matuska for inviscid flow is extended to include viscous and electromagnetic terms with stability, convergence and computational speed comparing favorably with other existing hydrocodes. In this investigation, the method is applied to a number of transient hydrodynamic and magnetohydrodynamic applications characterized by the interaction of gasdynamic, electromagnetic and viscous flow phenomena. The external flow field around an M-117 warhead, an ablating reentry vehicle and a semi-infinite circular cylinder, and the internal flow of a nozzle, shock tube and MHD channel is examined under viscous and inviscid conditions. Attention is focused on the behavior of a conducting fluid in the presence of shocks, boundary layers, heat transfer and electromagnetic fields. Finally, the investigation of an MHD generator is described with emphasis placed on aerodynamic and viscous effects influencing the behavior of the energy conversion process. Results of these calculations are shown to be in close agreement with experiment and other theoretical solutions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1978
- Accession Number
- ADA062743
Entities
People
- Laurence A. Feldman
Organizations
- Arnold Engineering Development Complex