Magneto-Fluid Dynamics Calculations for Aerodynamics
Abstract
Magneto-Hydro-Dynamics (MHD) or more generally Magneto-Fluid-Dynamics (MFD) offers a potential breakthrough in both hypersonic vehicle design and propulsion. Reductions in both drag and heat transfer and flow control using magnetic fields can be important for enabling a hypersonic vehicle to pass more efficiently and safely through the atmosphere. Magnetic and electric fields placed within the propulsion system may enable the extraction of electrical energy from the ionized flow entering the engine, thus slowing the air speed without the usual large losses in total pressure caused by conventional shock wave deceleration and thereby enhancing complete combustion, and then later returning the extracted energy back into the flow after combustion for further acceleration. These potential benefits may or may not be realizable for air vehicle design. Realistic aerodynamic simulations, under the conditions of expected low electrical conductivities and strong magnetic fields, will be required. The solution of the complete equations governing magneto-fluid dynamics, including magnetic induction and diffusion, within strong magnetic fields can introduce severe numerical simulation difficulties. The goal of this research is to develop algorithms for their solution.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 20, 2007
- Accession Number
- ADA475000
Entities
People
- Robert W. Maccormack
Organizations
- Stanford University