Performance Theory of Diagonal Conducting Wall Magnetohydrodynamic Accelerators

Autor:	Ron J. Litchford
Rok vydání:	2004
Předmět:	Ohm's law Physics Mechanical Engineering Diagonal Aerospace Engineering Mechanics Boundary layer thickness symbols.namesake Boundary layer Fuel Technology Classical mechanics Space and Planetary Science Electric field symbols Magnetohydrodynamic drive Lorentz force Voltage drop
Zdroj:	Journal of Propulsion and Power. 20:742-750
ISSN:	1533-3876 0748-4658
Popis:	The theoretical performance of diagonal conducting wall crossed-field accelerators is examined on the basis of an infinite segmentation assumption using a cross-plane averaged generalized Ohm s law for a partially ionized gas, including ion slip. The desired accelerator performance relationships are derived from the cross-plane averaged Ohm s law by imposing appropriate configuration and loading constraints. A current-dependent effective voltage drop model is also incorporated to account for cold-wall boundary layer effects, including gasdynamic variations, discharge constriction, and electrode falls. Definition of dimensionless electric fields and current densities leads to the construction of graphical performance diagrams, which further illuminate the rudimentary behavior of crossed-field accelerator operation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::dbc016318ec1a9240dafe8ba33d3f4cb https://doi.org/10.2514/1.3698 Zobrazit plný text záznamu