MHD propulsion is a method of propelling spacecraft or other vehicles using the principles of magnetohydrodynamics (MHD). This involves using a magnetic field to ionize a propellant gas and then accelerating the ions using an electric field, producing thrust.
MHD propulsion offers several benefits over traditional chemical propulsion methods. These include higher efficiency, faster acceleration, and the potential for longer mission durations due to the use of non-reactive propellants. It also produces less waste and is less harmful to the environment.
Currently, MHD propulsion is mainly used in laboratory experiments and for small-scale satellite propulsion. However, there are ongoing research and development efforts to use MHD propulsion for larger spacecraft and even for potential future manned missions.
One of the main challenges of MHD propulsion is the development of efficient and lightweight systems that can generate strong magnetic and electric fields. Additionally, there are technical challenges such as managing the ionization and acceleration processes and minimizing energy losses.
Some recommended journals for MHD propulsion research include the Journal of Propulsion and Power, the Journal of Spacecraft and Rockets, and the Journal of Applied Physics. Other helpful references include books such as "Magnetohydrodynamics and Fluid Dynamics" by B. A. Kordyuk and "Magnetohydrodynamics in Advanced Materials Processing" by S. V. Patankar and T. W. Simon.